use crate::{Color, Node}; // LEGACY BRIGHTNESS/CONTRAST pub struct BrightnessContrastLegacyMapperNode { contrast: f32, combined: f32, } impl<'i> Node<'i, Color> for BrightnessContrastLegacyMapperNode { type Output = Color; fn eval(&'i self, color: Color) -> Color { let color = color.to_gamma_srgb(); let color = color.map_rgb(|c| (c + c * self.contrast + self.combined).clamp(0., 1.)); color.to_linear_srgb() } } #[derive(Debug, Clone, Copy)] pub struct GenerateBrightnessContrastLegacyMapperNode { brightness: Brightness, contrast: Contrast, } #[node_macro::node_fn(GenerateBrightnessContrastLegacyMapperNode)] fn brightness_contrast_legacy_node(_primary: (), brightness: f32, contrast: f32) -> BrightnessContrastLegacyMapperNode { let brightness = brightness / 255.; let contrast = contrast / 100.; let contrast = if contrast > 0. { (contrast * core::f32::consts::FRAC_PI_2 - 0.01).tan() } else { contrast }; let combined = brightness * contrast + brightness - contrast / 2.; BrightnessContrastLegacyMapperNode { contrast, combined } } // NORMAL BRIGHTNESS/CONTRAST pub struct BrightnessContrastMapperNode { combined_lut: [f32; WINDOW_SIZE], } impl<'i> Node<'i, Color> for BrightnessContrastMapperNode { type Output = Color; fn eval(&'i self, color: Color) -> Color { let color = color.to_gamma_srgb(); let color = color.map_rgb(|c| { let index_in_combined_lut = (c * (self.combined_lut.len() - 1) as f32).round() as usize; self.combined_lut[index_in_combined_lut] }); color.to_linear_srgb() } } #[derive(Debug, Clone, Copy)] pub struct GenerateBrightnessContrastMapperNode { brightness: Brightness, contrast: Contrast, } #[node_macro::node_fn(GenerateBrightnessContrastMapperNode)] fn brightness_contrast_node(_primary: (), brightness: f32, contrast: f32) -> BrightnessContrastMapperNode { // Brightness LUT let brightness_is_negative = brightness < 0.; let brightness = brightness.abs() / 100.; let brightness_curve_points = CubicSplines { x: [0., 130. - brightness * 26., 233. - brightness * 48., 255.].map(|x| x / 255.), y: [0., 130. + brightness * 51., 233. + brightness * 10., 255.].map(|x| x / 255.), }; let brightness_curve_solutions = solve_cubic_splines(&brightness_curve_points); let mut brightness_lut: [f32; WINDOW_SIZE] = core::array::from_fn(|i| { let x = i as f32 / (WINDOW_SIZE as f32 - 1.); interpolate_cubic_splines(x, &brightness_curve_points, &brightness_curve_solutions) }); // Special handling for when brightness is negative if brightness_is_negative { brightness_lut = core::array::from_fn(|i| { let mut x = i; while x > 1 && brightness_lut[x] > i as f32 / WINDOW_SIZE as f32 { x -= 1; } x as f32 / WINDOW_SIZE as f32 }); } // Contrast LUT let contrast = contrast / 100.; let contrast_curve_points = CubicSplines { x: [0., 64., 192., 255.].map(|x| x / 255.), y: [0., 64. - contrast * 30., 192. + contrast * 30., 255.].map(|x| x / 255.), }; let contrast_curve_solutions = solve_cubic_splines(&contrast_curve_points); let contrast_lut: [f32; WINDOW_SIZE] = core::array::from_fn(|i| { let x = i as f32 / (WINDOW_SIZE as f32 - 1.); interpolate_cubic_splines(x, &contrast_curve_points, &contrast_curve_solutions) }); // Composed brightness and contrast LUTs let combined_lut = brightness_lut.map(|brightness| { let index_in_contrast_lut = (brightness * (contrast_lut.len() - 1) as f32).round() as usize; contrast_lut[index_in_contrast_lut] }); BrightnessContrastMapperNode { combined_lut } } const WINDOW_SIZE: usize = 1024; struct CubicSplines { x: [f32; 4], y: [f32; 4], } fn solve_cubic_splines(cubic_spline_values: &CubicSplines) -> [f32; 4] { let (x, y) = (&cubic_spline_values.x, &cubic_spline_values.y); // Build an augmented matrix to solve the system of equations using Gaussian elimination let mut augmented_matrix = [ [ 2. / (x[1] - x[0]), 1. / (x[1] - x[0]), 0., 0., // | 3. * (y[1] - y[0]) / ((x[1] - x[0]) * (x[1] - x[0])), ], [ 1. / (x[1] - x[0]), 2. * (1. / (x[1] - x[0]) + 1. / (x[2] - x[1])), 1. / (x[2] - x[1]), 0., // | 3. * ((y[1] - y[0]) / ((x[1] - x[0]) * (x[1] - x[0])) + (y[2] - y[1]) / ((x[2] - x[1]) * (x[2] - x[1]))), ], [ 0., 1. / (x[2] - x[1]), 2. * (1. / (x[2] - x[1]) + 1. / (x[3] - x[2])), 1. / (x[3] - x[2]), // | 3. * ((y[2] - y[1]) / ((x[2] - x[1]) * (x[2] - x[1])) + (y[3] - y[2]) / ((x[3] - x[2]) * (x[3] - x[2]))), ], [ 0., 0., 1. / (x[3] - x[2]), 2. / (x[3] - x[2]), // | 3. * (y[3] - y[2]) / ((x[3] - x[2]) * (x[3] - x[2])), ], ]; // Gaussian elimination: forward elimination for row in 0..4 { let pivot_row_index = (row..4) .max_by(|&a_row, &b_row| { augmented_matrix[a_row][row] .abs() .partial_cmp(&augmented_matrix[b_row][row].abs()) .unwrap_or(core::cmp::Ordering::Equal) }) .unwrap(); // Swap the current row with the row that has the largest pivot element augmented_matrix.swap(row, pivot_row_index); // Eliminate the current column in all rows below the current one for row_below_current in row + 1..4 { assert!(augmented_matrix[row][row].abs() > core::f32::EPSILON); let scale_factor = augmented_matrix[row_below_current][row] / augmented_matrix[row][row]; for col in row..5 { augmented_matrix[row_below_current][col] -= augmented_matrix[row][col] * scale_factor } } } // Gaussian elimination: back substitution let mut solutions = [0.; 4]; for col in (0..4).rev() { assert!(augmented_matrix[col][col].abs() > core::f32::EPSILON); solutions[col] = augmented_matrix[col][4] / augmented_matrix[col][col]; for row in (0..col).rev() { augmented_matrix[row][4] -= augmented_matrix[row][col] * solutions[col]; augmented_matrix[row][col] = 0.; } } solutions } fn interpolate_cubic_splines(input: f32, points: &CubicSplines, solutions: &[f32]) -> f32 { if input <= points.x[0] { return points.y[0]; } if input >= points.x[points.x.len() - 1] { return points.y[points.x.len() - 1]; } // Find the segment that the input falls between let mut segment = 1; while points.x[segment] < input { segment += 1; } let segment_start = segment - 1; let segment_end = segment; // Calculate the output value using quadratic interpolation let input_value = points.x[segment_start]; let input_value_prev = points.x[segment_end]; let output_value = points.y[segment_start]; let output_value_prev = points.y[segment_end]; let solutions_value = solutions[segment_start]; let solutions_value_prev = solutions[segment_end]; let output_delta = solutions_value_prev * (input_value - input_value_prev) - (output_value - output_value_prev); let solution_delta = (output_value - output_value_prev) - solutions_value * (input_value - input_value_prev); let input_ratio = (input - input_value_prev) / (input_value - input_value_prev); let prev_output_ratio = (1. - input_ratio) * output_value_prev; let output_ratio = input_ratio * output_value; let quadratic_ratio = input_ratio * (1. - input_ratio) * (output_delta * (1. - input_ratio) + solution_delta * input_ratio); let result = prev_output_ratio + output_ratio + quadratic_ratio; result.clamp(0., 1.) } mod tests { #[allow(unused_imports)] use super::*; #[allow(unused_imports)] use crate::value::ClonedNode; #[test] fn brightness_contrast_legacy_tests() { let string_data = |string: &str| string.split(',').map(|s| s.parse().unwrap()).collect::>(); let brightness_contrast_legacy_map = |brightness, contrast| -> [u8; 256] { let brightness = ClonedNode::new(brightness); let contrast = ClonedNode::new(contrast); let generate_brightness_contrast_legacy_node = GenerateBrightnessContrastLegacyMapperNode::new(brightness, contrast); let mapper = generate_brightness_contrast_legacy_node.eval(()); let color = |r| Color::from_rgbaf32_unchecked(r, 0., 0., 1.); core::array::from_fn(|x| (mapper.eval(color(x as f32 / 255.)).r() * 255.).round() as u8) }; assert_eq!(brightness_contrast_legacy_map(-150., 100.), [0; 256]); assert_eq!(brightness_contrast_legacy_map(-77., 100.), { let mut x = [0; 153].into_iter().chain([2, 20, 65, 143].into_iter()).chain([255; 99].into_iter()); core::array::from_fn(|_| x.next().unwrap()) }); assert_eq!(brightness_contrast_legacy_map(0., 100.), { let mut x = [0; 54].into_iter().chain([13, 107].into_iter()).chain([255; 200].into_iter()); core::array::from_fn(|_| x.next().unwrap()) }); assert_eq!(brightness_contrast_legacy_map(53., 100.), { let mut x = [0; 18].into_iter().chain([132].into_iter()).chain([255; 237].into_iter()); core::array::from_fn(|_| x.next().unwrap()) }); assert_eq!(brightness_contrast_legacy_map(150., 100.), [255; 256]); assert_eq!( brightness_contrast_legacy_map(-150., 0.), [0; 86].into_iter().chain(string_data("1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,6,6,6,6,6,6,6,7,7,7,7,7,8,8,8,8,8,8,9,9,9,9,9,10,10,10,10,10,11,11,11,11,11,12,12,12,12,13,13,13,13,13,14,14,14,14,15,15,15,15,15,16,16,16,16,17,17,17,17,18,18,18,18,19,19,19,19,20,20,20,21,21,21,21,22,22,22,22,23,23,23,23,24,24,24,25,25,25,25,26,26,26,27,27,27,27,28,28,28,29,29,29,30,30,30,30,31,31,31,32,32,32,33,33,33,33,34,34,34,35,35,35,36,36")).collect::>().as_slice(), ); assert_eq!( brightness_contrast_legacy_map(-77., 0.), string_data("0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,2,2,2,2,2,3,3,3,3,3,4,4,4,4,5,5,5,6,6,6,6,7,7,7,8,8,8,9,9,9,10,10,11,11,11,12,12,12,13,13,13,14,14,15,15,15,16,16,17,17,17,18,18,19,19,20,20,20,21,21,22,22,23,23,24,24,24,25,25,26,26,27,27,28,28,29,29,30,30,31,31,31,32,32,33,33,34,34,35,35,36,36,37,37,38,38,39,39,40,40,41,41,42,42,43,44,44,45,45,46,46,47,47,48,48,49,49,50,50,51,51,52,53,53,54,54,55,55,56,56,57,57,58,59,59,60,60,61,61,62,62,63,64,64,65,65,66,66,67,67,68,69,69,70,70,71,71,72,73,73,74,74,75,76,76,77,77,78,78,79,80,80,81,81,82,83,83,84,84,85,85,86,87,87,88,88,89,90,90,91,91,92,93,93,94,94,95,96,96,97,98,98,99,99,100,101,101,102,102,103,104,104,105,105,106,107,107,108,109,109,110,110,111,112,112,113,114").as_slice(), ); assert_eq!(brightness_contrast_legacy_map(0., 0.), core::array::from_fn(|i| i as u8)); assert_eq!( brightness_contrast_legacy_map(53., 0.), string_data("9,14,18,21,24,27,29,32,34,37,39,41,43,45,47,49,51,53,55,57,59,61,63,65,66,68,70,72,73,75,77,79,80,82,84,85,87,89,90,92,94,95,97,99,100,102,104,105,107,108,110,111,113,115,116,118,119,121,122,124,126,127,129,130,132,133,135,136,138,139,141,142,144,145,147,148,150,151,153,154,156,157,159,160,161,163,164,166,167,169,170,172,173,175,176,177,179,180,182,183,185,186,187,189,190,192,193,195,196,197,199,200,202,203,204,206,207,209,210,211,213,214,216,217,218,220,221,223,224,225,227,228,230,231,232,234,235,236,238,239,241,242,243,245,246,247,249,250,251,253,254").into_iter().chain([255; 105].into_iter()).collect::>().as_slice(), ); assert_eq!( brightness_contrast_legacy_map(150., 0.), string_data("78,93,105,114,122,129,135,141,147,152,157,162,167,171,176,180,184,188,192,196,200,204,208,211,215,218,222,225,229,232,236,239,242,245,249,252") .into_iter() .chain([255; 220].into_iter()) .collect::>() .as_slice(), ); assert_eq!(brightness_contrast_legacy_map(-150., -100.), [55; 256]); assert_eq!(brightness_contrast_legacy_map(-77., -100.), [55; 256]); assert_eq!(brightness_contrast_legacy_map(0., -100.), [55; 256]); assert_eq!(brightness_contrast_legacy_map(53., -100.), [55; 256]); assert_eq!(brightness_contrast_legacy_map(150., -100.), [55; 256]); } #[test] fn brightness_contrast_tests() { let string_data = |string: &str| string.split(',').map(|s| s.parse().unwrap()).collect::>(); let brightness_contrast_map = |brightness, contrast| -> [u8; 1024] { let brightness = ClonedNode::new(brightness); let contrast = ClonedNode::new(contrast); let generate_brightness_contrast_node = GenerateBrightnessContrastMapperNode::new(brightness, contrast); let mapper = generate_brightness_contrast_node.eval(()); let color = |r| Color::from_rgbaf32_unchecked(r, 0., 0., 1.); core::array::from_fn(|x| (mapper.eval(color(x as f32 / 1023.)).r() * 255.).round() as u8) }; assert_eq!( &brightness_contrast_map(-150., 100.), string_data("0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,14,14,14,14,14,14,14,14,14,14,14,14,14,14,15,15,15,15,15,15,15,15,15,15,15,15,15,15,16,16,16,16,16,16,16,16,16,16,16,16,16,16,17,17,17,17,17,17,17,17,17,17,17,17,18,18,18,18,18,18,18,18,18,18,18,19,19,19,19,19,19,19,19,19,19,19,19,20,20,20,20,20,20,20,20,20,20,20,21,21,21,21,21,21,21,21,22,22,22,22,22,22,22,22,22,22,22,23,23,23,23,23,23,23,23,23,24,24,24,24,24,24,24,24,25,25,25,25,25,25,25,26,26,26,26,26,26,27,27,27,27,27,27,27,27,28,28,28,28,28,28,28,29,29,29,29,29,29,30,30,30,30,30,30,30,30,31,31,31,31,31,31,32,32,32,32,33,33,33,33,33,33,33,33,34,34,34,34,35,35,35,35,36,36,36,36,36,36,37,37,37,37,38,38,38,38,39,39,39,39,40,40,40,40,41,41,41,41,42,42,42,42,43,43,43,43,44,44,44,44,45,45,45,45,46,46,47,47,47,47,48,48,49,49,49,49,50,50,50,50,51,51,52,52,52,53,53,53,53,54,54,55,55,56,56,57,57,57,57,58,58,59,59,60,60,61,61,61,62,62,63,63,64,64,65,65,67,67,68,68,69,69,70,70,72,72,72,73,73,74,74,76,76,77,77,79,79,81,81,82,82,82,84,84,86,86,88,88,90,90,92,92,94,94,94,97,97,99,99,101,101,104,104,107,107,110,110,110,113,113,116,116,119,119,123,123,126,126,126,130,130,133,133,137,137,141,141,145,145,145,149,149,154,154,158,158,163,163,163,168,168,172,172,177,177,182,182,182,188,188,193,193,198,198,204,204,204,209,209,215,215,220,220,226,226,226,232,232,237,237,243,243,249,249").as_slice() ); assert_eq!( brightness_contrast_map(-77., 100.), string_data("0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8,8,8,8,8,8,9,9,9,9,9,9,9,9,9,9,9,9,9,10,10,10,10,10,10,10,10,10,10,10,11,11,11,11,11,11,11,11,11,11,11,11,12,12,12,12,12,12,12,12,12,12,12,12,13,13,13,13,13,13,13,13,13,13,14,14,14,14,14,14,14,14,14,15,15,15,15,15,15,15,15,15,16,16,16,16,16,16,16,16,17,17,17,17,17,17,17,17,17,18,18,18,18,18,18,18,18,18,19,19,19,19,19,19,19,19,19,20,20,20,20,20,20,20,20,21,21,21,21,21,21,22,22,22,22,22,22,22,23,23,23,23,23,23,23,23,23,24,24,24,24,24,24,25,25,25,25,25,25,25,26,26,26,26,26,26,27,27,27,27,27,27,28,28,28,28,28,28,28,29,29,29,29,29,29,30,30,30,30,30,30,30,31,31,31,31,31,31,31,32,32,32,32,33,33,33,33,33,33,33,34,34,34,34,34,35,35,35,35,36,36,36,36,36,36,36,37,37,37,37,38,38,38,38,38,38,39,39,39,39,40,40,40,40,40,40,41,41,41,41,42,42,42,42,42,42,43,43,43,43,44,44,44,44,44,44,45,45,45,45,46,46,46,46,46,47,47,47,47,47,47,48,48,48,49,49,49,49,50,50,50,50,50,51,51,51,52,52,52,52,52,52,53,53,53,53,53,54,54,54,55,55,55,55,55,55,56,56,56,57,57,57,57,57,57,58,58,58,59,59,59,59,59,60,60,60,61,61,61,62,62,62,62,62,63,63,63,64,64,64,64,65,65,65,65,66,66,66,66,67,67,67,68,68,68,68,68,69,69,69,70,70,70,71,71,71,71,72,72,72,73,73,73,73,73,74,74,74,75,75,76,76,76,77,77,77,77,78,78,78,79,79,79,80,80,80,80,81,81,81,82,82,82,82,83,83,83,84,84,84,85,85,85,85,86,86,86,87,87,88,88,88,88,89,89,89,90,90,90,90,91,92,92,93,93,93,93,94,94,94,95,95,95,95,96,97,97,97,97,98,98,98,98,99,100,100,100,100,101,101,101,101,102,103,103,104,104,104,104,105,105,105,106,106,107,107,107,107,108,108,109,109,109,110,110,111,111,112,112,112,112,113,113,113,114,114,115,115,115,115,117,117,117,117,118,118,118,119,119,120,120,120,120,121,121,122,122,123,123,124,124,124,124,125,126,126,126,126,128,128,128,128,129,129,130,130,130,130,131,131,132,132,133,133,134,134,134,135,135,136,136,137,137,138,138,139,139,139,139,140,140,141,141,142,142,143,143,143,143,144,144,145,145,146,146,147,147,148,148,149,149,149,149,150,150,151,151,152,152,153,153,154,154,155,155,156,156,156,156,158,158,159,159,159,159,160,160,161,161,162,162,163,163,164,164,165,165,166,166,167,167,168,168,169,169,170,170,171,171,171,171,172,172,173,173,174,174,175,175,176,176,177,177,178,178,179,179,180,180,180,181,181,182,182,183,183,184,184,185,185,186,186,187,187,188,188,189,189,190,190,191,191,191,193,193,193,193,194,194,196,196,196,196,198,198,198,198,200,200,201,201,201,202,202,203,203,204,204,205,205,206,206,207,207,208,208,208,209,209,210,210,211,211,212,212,213,213,214,214,214,215,215,217,217,218,218,218,218,220,220,221,221,221,222,222,223,223,224,224,225,225,226,226,226,227,227,228,228,230,230,231,231,232,232,232,233,233,234,234,235,235,236,236,236,237,237,238,238,239,239,240,240,240,242,242,243,243,244,244,245,245,245,246,246,247,247,248,248,249,249,249,250,250,251,251,253,253,254,254").as_slice() ); assert_eq!( brightness_contrast_map(0., 100.), string_data("0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,2,2,2,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,6,6,6,6,6,6,7,7,7,7,7,7,8,8,8,8,8,9,9,9,9,9,10,10,10,10,10,11,11,11,11,12,12,12,12,12,13,13,13,13,14,14,14,14,15,15,15,16,16,16,16,17,17,17,17,18,18,18,19,19,19,19,20,20,20,21,21,21,22,22,22,22,23,23,23,24,24,24,25,25,25,26,26,26,27,27,27,28,28,28,29,29,29,30,30,30,31,31,31,32,32,33,33,33,34,34,34,35,35,36,36,36,37,37,37,38,38,39,39,39,40,40,41,41,41,42,42,43,43,43,44,44,45,45,45,46,46,46,47,47,48,48,49,49,49,50,50,51,51,52,52,52,53,53,53,54,55,55,55,56,56,57,57,57,58,58,59,59,59,60,60,61,61,62,62,63,63,64,64,65,65,65,66,66,67,67,68,68,68,69,69,70,70,71,71,72,72,73,73,73,74,74,74,75,75,76,76,77,77,78,78,79,79,80,80,81,81,82,82,83,83,83,83,84,84,85,85,86,86,87,87,88,88,88,89,89,90,90,91,92,92,93,93,93,94,94,95,95,96,96,97,97,97,98,98,99,99,100,100,100,101,101,102,102,103,104,104,104,105,105,106,106,107,107,107,108,108,109,109,109,110,111,111,112,112,112,113,113,114,114,115,115,115,116,117,117,117,118,118,119,119,119,120,120,121,121,121,122,123,123,124,124,124,125,125,126,126,126,127,128,128,128,129,129,130,130,130,131,131,131,132,133,133,133,134,134,135,135,135,136,137,137,137,138,138,139,139,139,140,140,140,141,142,142,142,143,143,144,144,144,145,145,145,146,147,147,147,148,148,148,149,149,149,150,150,151,151,152,152,153,153,153,154,154,154,155,155,155,156,156,156,157,158,158,158,159,159,159,160,160,160,161,161,161,162,162,163,163,163,164,164,165,165,165,166,166,166,167,167,168,168,168,169,169,169,170,170,170,171,171,171,172,172,172,173,173,173,174,174,174,175,175,175,176,176,176,177,177,177,178,178,178,179,179,179,180,180,180,180,181,181,181,182,182,182,183,183,183,184,184,184,185,185,185,186,186,186,187,187,187,188,188,188,188,188,189,189,189,190,190,190,191,191,191,191,192,192,192,193,193,193,193,193,194,194,194,195,195,195,196,196,196,196,196,197,197,197,198,198,198,198,198,199,199,199,200,200,200,200,201,201,201,201,201,202,202,202,203,203,203,203,203,204,204,204,204,204,205,205,205,206,206,206,206,206,207,207,207,207,208,208,208,208,208,209,209,209,209,209,210,210,210,210,210,211,211,211,211,211,212,212,212,212,213,213,213,213,213,214,214,214,214,214,215,215,215,215,215,215,216,216,216,216,216,217,217,217,217,217,218,218,218,218,218,218,218,219,219,219,219,219,219,220,220,220,220,220,221,221,221,221,221,221,222,222,222,222,222,222,222,223,223,223,223,223,224,224,224,224,224,224,224,224,225,225,225,225,225,226,226,226,226,226,226,226,226,227,227,227,227,227,227,227,228,228,228,228,228,228,229,229,229,229,229,229,229,230,230,230,230,230,230,230,230,231,231,231,231,231,231,231,231,232,232,232,232,232,232,232,233,233,233,233,233,233,233,233,233,233,234,234,234,234,234,234,234,234,235,235,235,235,235,235,235,235,236,236,236,236,236,236,236,236,236,236,237,237,237,237,237,237,237,237,238,238,238,238,238,238,238,238,238,238,239,239,239,239,239,239,239,239,239,239,240,240,240,240,240,240,240,240,240,240,241,241,241,241,241,241,241,241,241,241,242,242,242,242,242,242,242,242,242,242,243,243,243,243,243,243,243,243,243,243,243,244,244,244,244,244,244,244,244,244,244,244,244,245,245,245,245,245,245,245,245,245,245,245,246,246,246,246,246,246,246,246,246,246,246,246,247,247,247,247,247,247,247,247,247,247,247,247,247,248,248,248,248,248,248,248,248,248,248,248,249,249,249,249,249,249,249,249,249,249,249,249,249,250,250,250,250,250,250,250,250,250,250,250,250,250,251,251,251,251,251,251,251,251,251,251,251,251,251,252,252,252,252,252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,253,253,253,253,253,253,253,254,254,254,254,254,254,254,254,254,254,254,254,254,254,255,255,255,255,255,255,255,255").as_slice() ); assert_eq!( brightness_contrast_map(53., 100.), string_data("0,0,0,0,0,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,3,3,3,3,3,4,4,4,4,5,5,5,6,6,6,7,7,7,8,8,8,9,9,10,10,11,11,12,12,12,13,13,14,15,15,16,16,17,17,18,19,19,19,20,21,22,22,23,23,24,25,25,26,27,27,28,29,29,30,31,31,32,33,34,34,35,36,36,37,38,39,40,40,41,42,43,43,44,45,46,46,47,48,49,50,50,51,52,53,53,55,55,56,57,57,59,59,60,61,62,63,63,65,65,66,67,68,68,69,70,71,72,73,73,74,75,76,77,77,79,79,80,81,82,83,83,84,85,86,86,87,88,89,90,90,92,93,93,94,95,96,96,98,98,99,99,101,101,102,102,104,105,105,106,107,108,108,109,110,111,112,112,113,114,115,115,116,117,118,119,119,120,120,121,123,123,124,124,125,126,126,128,128,129,129,130,131,131,132,133,134,135,135,136,137,137,138,138,139,140,141,142,142,143,143,144,145,145,146,147,147,148,148,149,149,150,152,152,153,153,154,154,155,155,156,157,158,158,159,159,160,160,161,161,162,162,163,164,165,165,166,166,167,167,168,168,168,169,169,170,170,171,171,172,173,173,174,174,175,175,176,176,177,177,177,178,178,179,179,180,180,181,181,182,182,183,183,183,184,184,185,185,186,186,187,187,187,188,188,188,189,189,190,190,191,191,191,192,192,193,193,193,193,194,194,195,195,196,196,196,196,197,197,198,198,198,198,199,199,200,200,201,201,201,201,201,202,202,202,203,203,203,204,204,204,204,205,205,206,206,206,206,207,207,207,207,208,208,208,208,209,209,209,210,210,210,210,210,211,211,211,211,212,212,212,213,213,213,213,213,214,214,214,214,215,215,215,215,216,216,216,216,216,217,217,217,217,218,218,218,218,218,218,218,219,219,219,219,219,220,220,220,220,221,221,221,221,221,221,222,222,222,222,222,222,222,223,223,223,223,224,224,224,224,224,224,224,225,225,225,225,225,226,226,226,226,226,226,226,227,227,227,227,227,227,227,227,228,228,228,228,228,229,229,229,229,229,229,229,229,229,230,230,230,230,230,230,230,231,231,231,231,231,231,231,231,232,232,232,232,232,232,232,232,232,233,233,233,233,233,233,233,233,233,233,234,234,234,234,234,234,234,234,234,234,235,235,235,235,235,235,235,235,235,236,236,236,236,236,236,236,236,236,236,236,237,237,237,237,237,237,237,237,237,238,238,238,238,238,238,238,238,238,238,238,238,238,239,239,239,239,239,239,239,239,239,239,239,239,239,240,240,240,240,240,240,240,240,240,240,240,240,240,240,240,241,241,241,241,241,241,241,241,241,241,241,241,241,241,241,242,242,242,242,242,242,242,242,242,242,242,242,242,242,242,243,243,243,243,243,243,243,243,243,243,243,243,243,243,243,243,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255").as_slice() ); assert_eq!( brightness_contrast_map(150., 100.), string_data("0,0,0,1,1,1,2,2,3,4,5,6,7,9,10,12,14,16,18,20,22,25,28,30,33,36,38,41,44,47,50,53,56,59,62,65,68,71,74,77,81,84,87,90,94,96,99,102,105,108,112,114,117,119,123,125,128,130,133,135,138,140,143,146,148,150,152,154,157,159,161,163,165,167,169,170,172,174,176,177,179,181,182,184,186,187,188,189,191,192,193,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,209,210,211,211,213,214,214,215,215,216,216,217,218,218,219,219,220,221,221,222,222,222,223,224,224,224,225,225,226,226,226,227,227,228,228,228,229,229,230,230,230,231,231,231,232,232,232,232,233,233,233,233,233,234,234,234,235,235,235,235,236,236,236,236,236,237,237,237,237,238,238,238,238,238,238,239,239,239,239,239,239,239,240,240,240,240,240,240,241,241,241,241,241,241,241,242,242,242,242,242,242,242,242,243,243,243,243,243,243,243,243,243,243,244,244,244,244,244,244,244,244,244,244,244,244,245,245,245,245,245,245,245,245,245,245,245,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255").as_slice() ); assert_eq!( brightness_contrast_map(-150., 0.), string_data("0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,26,26,26,26,26,26,26,26,26,26,26,26,26,26,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,28,28,28,28,28,28,28,28,28,28,28,28,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,30,30,30,30,30,30,30,30,30,30,30,30,30,31,31,31,31,31,31,31,31,31,31,31,31,31,32,32,32,32,32,32,32,32,32,32,32,33,33,33,33,33,33,33,33,33,33,33,33,33,34,34,34,34,34,34,34,34,34,35,35,35,35,35,35,35,35,35,35,35,36,36,36,36,36,36,36,36,37,37,37,37,37,37,37,37,37,37,37,37,38,38,38,38,38,38,38,39,39,39,39,39,39,39,39,39,39,40,40,40,40,40,40,40,40,40,40,41,41,41,41,41,41,41,41,42,42,42,42,42,42,43,43,43,43,43,43,43,43,44,44,44,44,44,44,44,44,45,45,45,45,45,45,46,46,46,46,46,46,47,47,47,47,47,47,48,48,48,48,48,48,49,49,49,49,50,50,50,50,50,50,51,51,51,51,52,52,52,52,52,52,53,53,53,53,53,54,54,54,54,54,54,55,55,55,55,56,56,56,56,57,57,57,57,58,58,58,58,58,59,59,60,60,60,60,61,61,62,62,62,62,63,63,64,64,64,64,64,65,65,66,66,67,67,67,67,69,69,69,69,70,70,70,71,71,72,72,73,73,74,74,76,76,77,77,77,78,78,79,79,81,81,82,82,84,84,85,85,85,87,87,89,89,91,91,92,92,94,94,94,97,97,99,99,101,101,103,103,106,106,106,108,108,111,111,114,114,117,117,117,120,120,124,124,127,127,131,131,131,135,135,140,140,145,145,151,151,151,157,157,164,164,172,172,180,180,180,191,191,203,203,218,218,235,235").as_slice() ); assert_eq!( brightness_contrast_map(-77., 0.), string_data("0,0,0,0,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,2,3,3,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,6,6,6,6,6,6,6,6,6,6,6,7,7,7,7,7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8,8,8,8,8,9,9,9,9,9,9,9,9,9,9,9,10,10,10,10,10,10,10,10,10,10,10,10,11,11,11,11,11,11,11,11,11,11,11,12,12,12,12,12,12,12,12,12,12,13,13,13,13,13,13,13,13,13,13,13,13,14,14,14,14,14,14,14,14,14,14,14,15,15,15,15,15,15,15,15,15,15,15,15,16,16,16,16,16,16,16,16,16,16,17,17,17,17,17,17,17,17,17,17,17,17,18,18,18,18,18,18,18,18,18,18,19,19,19,19,19,19,19,19,19,19,19,20,20,20,20,20,20,20,20,20,20,20,21,21,21,21,21,21,21,21,21,22,22,22,22,22,22,22,22,22,22,22,23,23,23,23,23,23,23,23,23,23,24,24,24,24,24,24,24,24,24,24,24,25,25,25,25,25,25,25,25,25,25,26,26,26,26,26,26,26,26,26,27,27,27,27,27,27,27,27,27,27,27,28,28,28,28,28,28,28,28,28,29,29,29,29,29,29,29,29,29,29,30,30,30,30,30,30,30,30,30,31,31,31,31,31,31,31,31,31,31,32,32,32,32,32,32,32,32,32,33,33,33,33,33,33,33,33,33,33,34,34,34,34,34,34,34,35,35,35,35,35,35,35,35,35,35,36,36,36,36,36,36,36,36,37,37,37,37,37,37,37,37,37,38,38,38,38,38,38,38,38,38,39,39,39,39,39,39,39,39,40,40,40,40,40,40,40,40,40,41,41,41,41,41,41,41,41,41,42,42,42,42,42,42,42,42,43,43,43,43,43,43,43,43,44,44,44,44,44,44,44,44,45,45,45,45,45,45,45,45,45,46,46,46,46,46,46,47,47,47,47,47,47,47,47,48,48,48,48,48,48,48,48,48,49,49,49,49,49,49,50,50,50,50,50,50,50,50,50,51,51,51,51,51,51,52,52,52,52,52,52,52,53,53,53,53,53,53,53,53,54,54,54,54,54,54,54,54,55,55,55,55,55,55,55,56,56,56,56,56,56,56,56,57,57,57,57,57,57,58,58,58,58,58,58,58,58,59,59,59,59,59,59,59,60,60,60,60,60,60,61,61,61,61,61,61,61,62,62,62,62,62,62,63,63,63,63,63,63,63,64,64,64,64,64,64,65,65,65,65,65,65,65,66,66,66,66,66,67,67,67,67,67,67,67,68,68,68,68,68,69,69,69,69,69,69,70,70,70,70,70,70,71,71,71,71,71,71,72,72,72,72,72,72,73,73,73,73,73,74,74,74,74,74,74,74,75,75,75,75,75,76,76,76,76,76,77,77,77,77,77,77,78,78,78,78,78,79,79,79,79,79,80,80,80,80,80,80,81,81,81,82,82,82,82,82,82,82,82,83,83,83,84,84,84,84,84,84,85,85,85,85,85,86,86,86,86,87,87,87,87,87,88,88,88,88,88,88,89,89,89,89,90,90,90,91,91,91,91,91,91,92,92,92,92,92,92,93,93,93,93,94,94,94,95,95,95,95,96,96,96,96,97,97,97,97,98,98,98,98,98,98,99,99,99,100,100,100,100,101,101,101,101,102,102,102,102,103,103,103,103,104,104,104,104,105,105,105,105,106,106,106,106,107,107,107,107,108,108,108,108,109,109,109,109,110,110,111,111,111,111,112,112,112,112,113,113,113,113,114,114,115,115,115,115,116,116,116,116,117,117,118,118,119,119,119,119,120,120,120,120,121,121,122,122,123,123,123,123,124,124,124,124,125,125,126,126,127,127,127,127,128,128,129,129,130,130,130,130,130,131,131,132,132,133,133,134,134,134,134,135,135,136,136,137,137,138,138,139,139,139,140,140,141,141,141,141,143,143,143,143,145,145,145,145,147,147,148,148,148,149,149,150,150,151,151,152,152,153,153,154,154,156,156,156,157,157,158,158,159,159,161,161,162,162,163,163,163,165,165,166,166,168,168,169,169,171,171,172,172,172,174,174,176,176,177,177,179,179,181,181,181,183,183,185,185,187,187,189,189,191,191,191,193,193,196,196,198,198,200,200,200,202,202,205,205,208,208,210,210,210,213,213,216,216,219,219,222,222,222,225,225,229,229,232,232,236,236,236,239,239,243,243,247,247,250,250").as_slice() ); assert_eq!( brightness_contrast_map(0., 0.), string_data("0,0,1,1,1,1,2,2,2,2,3,3,3,3,3,4,4,4,4,5,5,5,6,6,6,6,6,7,7,7,7,8,8,8,8,9,9,9,9,10,10,10,10,11,11,11,11,12,12,12,13,13,13,13,14,14,14,14,14,15,15,15,15,16,16,16,16,17,17,17,17,18,18,18,18,19,19,19,19,20,20,20,20,21,21,21,21,22,22,22,22,23,23,23,23,24,24,24,24,25,25,25,25,26,26,26,26,27,27,27,27,28,28,28,28,29,29,29,29,30,30,30,30,31,31,31,31,32,32,32,32,33,33,33,33,34,34,34,34,35,35,35,35,36,36,36,36,37,37,37,37,38,38,38,38,39,39,39,39,40,40,40,40,41,41,41,41,42,42,42,42,43,43,43,43,44,44,44,44,45,45,45,45,46,46,46,46,47,47,47,47,48,48,48,48,49,49,49,49,50,50,50,50,51,51,51,51,52,52,52,52,53,53,53,53,54,54,54,54,55,55,55,55,56,56,56,56,57,57,57,57,58,58,58,58,58,59,59,59,60,60,60,60,61,61,61,61,62,62,62,62,63,63,63,63,64,64,64,64,65,65,65,65,66,66,66,66,66,67,67,67,67,68,68,68,69,69,69,69,70,70,70,70,71,71,71,71,71,72,72,72,73,73,73,73,74,74,74,74,74,75,75,75,76,76,76,76,76,77,77,77,78,78,78,78,78,79,79,79,80,80,80,80,80,81,81,81,82,82,82,82,82,83,83,83,84,84,84,84,85,85,85,85,85,86,86,86,87,87,87,87,88,88,88,88,88,89,89,89,89,90,90,90,91,91,91,91,92,92,92,92,92,93,93,93,93,94,94,94,94,95,95,95,95,96,96,96,97,97,97,97,98,98,98,98,99,99,99,99,100,100,100,100,101,101,101,101,102,102,102,102,103,103,103,103,104,104,104,104,105,105,105,105,106,106,106,106,107,107,107,107,108,108,108,108,108,109,109,109,109,110,110,110,110,111,111,111,111,112,112,112,112,113,113,113,113,113,114,114,115,115,115,115,115,116,116,116,116,117,117,117,117,118,118,118,119,119,119,119,119,120,120,120,120,121,121,121,121,122,122,122,123,123,123,123,123,124,124,124,124,125,125,125,126,126,126,126,126,127,127,127,127,128,128,128,129,129,129,129,129,130,130,130,130,130,131,131,131,132,132,132,132,133,133,133,134,134,134,134,134,135,135,135,135,135,136,136,136,137,137,137,137,137,138,138,138,139,139,139,139,139,140,140,140,141,141,141,141,141,142,142,142,143,143,143,143,143,144,144,144,145,145,145,145,145,146,146,146,147,147,147,147,148,148,148,148,148,149,149,149,150,150,150,150,150,151,151,151,152,152,152,152,153,153,153,153,153,154,154,154,155,155,155,156,156,156,156,156,156,157,157,157,158,158,158,158,158,159,159,159,159,160,160,160,161,161,161,161,162,162,162,162,162,163,163,163,164,164,164,164,165,165,165,165,165,166,166,166,166,167,167,167,168,168,168,168,169,169,169,169,169,170,170,170,170,171,171,171,172,172,172,172,173,173,173,173,173,174,174,174,174,175,175,175,175,176,176,176,177,177,177,177,178,178,178,178,179,179,179,179,179,180,180,180,180,181,181,181,181,182,182,182,183,183,183,183,184,184,184,184,185,185,185,185,186,186,186,186,186,187,187,187,187,188,188,188,188,189,189,189,189,190,190,190,190,191,191,191,191,192,192,192,193,193,193,193,194,194,194,194,195,195,195,195,196,196,196,196,197,197,197,197,198,198,198,198,198,198,199,199,199,199,200,200,200,200,201,201,201,201,202,202,202,202,203,203,203,203,204,204,204,204,205,205,205,205,206,206,206,206,207,207,207,207,208,208,208,208,209,209,209,209,210,210,210,210,211,211,211,211,212,212,212,212,213,213,213,213,214,214,215,215,215,215,216,216,216,216,217,217,217,217,218,218,218,218,218,219,219,219,219,220,220,220,220,221,221,221,221,222,222,222,222,223,223,223,223,223,224,224,224,224,225,225,225,225,226,226,227,227,227,227,228,228,228,228,228,229,229,229,229,230,230,230,230,231,231,231,231,232,232,232,232,232,233,233,233,233,234,234,235,235,235,235,235,236,236,236,236,237,237,237,237,238,238,238,238,238,239,239,239,239,240,240,241,241,241,241,241,242,242,242,242,243,243,243,243,244,244,244,244,244,245,245,245,245,246,246,246,247,247,247,247,248,248,248,248,248,249,249,249,249,250,250,250,250,250,251,251,252,252,252,252,253,253,253,253,253,254,254,254,254,255,255").as_slice() ); assert_eq!( brightness_contrast_map(53., 0.), string_data("0,0,1,1,2,2,3,3,4,4,5,5,6,6,6,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,19,19,20,20,21,21,22,22,23,24,24,24,25,25,26,27,27,28,28,29,29,29,30,31,31,32,32,33,33,33,34,35,35,36,36,37,37,38,38,39,39,40,40,41,41,42,42,43,43,43,44,44,45,45,46,46,47,48,48,48,49,50,50,50,51,51,52,52,53,53,54,54,55,55,56,56,56,57,57,58,58,59,59,60,60,61,61,62,62,63,63,63,64,64,65,65,66,66,67,67,67,68,69,69,70,70,71,71,71,72,72,73,73,74,74,74,75,75,76,76,76,77,78,78,79,79,79,80,80,81,81,81,82,82,83,83,84,84,85,85,85,86,86,87,87,88,88,88,89,89,90,90,91,91,91,92,92,93,93,93,94,94,95,95,96,96,96,97,97,98,98,99,99,100,100,100,101,101,101,102,102,103,103,104,104,104,105,105,106,106,106,107,107,107,108,108,108,109,110,110,110,111,111,111,112,112,113,113,113,114,114,115,115,115,116,116,116,117,117,118,118,119,119,119,120,120,120,120,121,121,121,122,122,123,123,123,124,124,125,125,126,126,126,127,127,127,127,128,128,129,129,129,130,130,130,131,131,132,132,132,132,133,133,134,134,134,135,135,135,135,136,136,137,137,137,138,138,138,139,139,139,140,140,141,141,141,141,142,142,143,143,143,143,144,144,145,145,145,145,146,146,147,147,148,148,148,148,148,149,149,149,150,150,150,151,151,151,152,152,153,153,153,153,154,154,154,154,155,155,156,156,156,156,157,157,158,158,158,158,158,159,159,159,160,160,160,161,161,162,162,162,162,162,163,163,163,164,164,164,165,165,165,165,165,166,166,167,167,167,168,168,168,168,169,169,169,169,170,170,170,170,171,171,171,172,172,172,173,173,173,173,173,174,174,174,175,175,175,175,176,176,176,177,177,177,177,178,178,178,179,179,179,179,179,180,180,180,180,180,181,181,182,182,182,182,182,183,183,183,184,184,184,184,185,185,185,185,186,186,186,186,186,186,187,187,187,188,188,188,188,189,189,189,189,189,190,190,190,191,191,191,191,192,192,192,192,192,193,193,193,193,194,194,194,194,194,195,195,195,196,196,196,196,196,197,197,197,197,198,198,198,198,198,198,198,198,199,199,199,199,199,200,200,200,200,201,201,201,201,201,202,202,202,202,202,203,203,203,203,203,204,204,204,204,205,205,205,205,205,206,206,206,206,206,206,206,207,207,207,207,208,208,208,208,208,209,209,209,209,209,210,210,210,210,210,210,210,211,211,211,211,211,212,212,212,212,212,212,212,213,213,213,213,213,214,214,214,215,215,215,215,215,215,215,216,216,216,216,216,216,216,217,217,217,217,217,218,218,218,218,218,218,218,219,219,219,219,219,219,219,220,220,220,220,220,220,220,221,221,221,221,221,221,221,222,222,222,222,222,222,222,223,223,223,223,223,223,223,223,223,224,224,224,224,224,224,224,225,225,225,225,225,225,225,226,226,226,226,226,227,227,227,227,227,227,227,227,228,228,228,228,228,228,228,228,228,229,229,229,229,229,229,229,229,229,230,230,230,230,230,230,230,230,230,231,231,231,231,231,231,231,231,231,231,232,232,232,232,232,232,232,232,232,233,233,233,233,233,233,233,233,233,233,234,234,234,234,234,234,235,235,235,235,235,235,235,235,235,236,236,236,236,236,236,236,236,236,236,236,236,237,237,237,237,237,237,237,237,237,237,238,238,238,238,238,238,238,238,238,238,238,238,239,239,239,239,239,239,239,239,239,239,239,239,240,240,240,240,240,240,241,241,241,241,241,241,241,241,241,241,241,241,242,242,242,242,242,242,242,242,242,242,242,242,242,242,243,243,243,243,243,243,243,243,243,243,243,243,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,245,245,245,245,245,245,245,245,245,245,245,245,246,246,246,246,246,246,246,246,246,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,251,251,251,251,251,251,251,251,251,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,255,255,255,255").as_slice() ); assert_eq!( brightness_contrast_map(150., 0.), string_data("0,1,2,3,4,6,8,9,11,13,15,16,18,20,22,24,26,28,29,32,33,35,37,39,41,43,44,46,48,50,52,54,56,57,59,61,62,64,66,67,69,71,73,75,76,78,80,81,82,85,86,88,89,91,92,94,95,97,98,100,102,103,104,106,107,109,110,111,113,115,116,117,119,120,121,122,124,125,126,127,129,130,131,133,134,135,136,137,138,139,141,142,143,144,145,146,147,148,149,150,151,153,153,154,156,156,157,158,159,160,161,162,163,164,165,165,166,167,168,169,170,170,171,172,173,173,174,175,176,177,178,178,179,179,180,181,181,182,183,184,184,185,186,186,187,187,188,189,189,190,191,191,191,192,193,193,194,195,195,196,196,197,197,198,198,198,199,199,200,200,201,201,202,202,203,203,203,204,204,205,205,206,206,207,207,207,208,208,209,209,209,209,210,210,211,211,211,212,212,212,212,213,213,214,214,215,215,215,215,216,216,217,217,217,217,218,218,218,218,219,219,219,220,220,220,220,220,221,221,221,221,222,222,222,222,222,223,223,223,223,224,224,224,224,224,225,225,225,225,225,226,226,226,227,227,227,227,227,228,228,228,228,228,228,229,229,229,229,229,229,229,230,230,230,230,230,230,230,231,231,231,231,231,231,231,231,232,232,232,232,232,232,232,232,233,233,233,233,233,233,233,233,233,234,234,234,234,234,235,235,235,235,235,235,235,235,235,235,236,236,236,236,236,236,236,236,236,236,236,236,237,237,237,237,237,237,237,237,237,237,237,238,238,238,238,238,238,238,238,238,238,238,238,238,238,239,239,239,239,239,239,239,239,239,239,239,239,239,239,239,240,240,240,240,240,240,240,241,241,241,241,241,241,241,241,241,241,241,241,241,241,241,241,241,242,242,242,242,242,242,242,242,242,242,242,242,242,242,242,242,242,242,243,243,243,243,243,243,243,243,243,243,243,243,243,243,243,243,243,243,243,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,246,246,246,246,246,246,246,246,246,246,246,246,246,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255").as_slice() ); assert_eq!( brightness_contrast_map(-150., -100.), string_data("0,0,0,0,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,6,6,6,6,6,6,6,6,6,6,6,6,7,7,7,7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8,8,8,8,8,9,9,9,9,9,9,9,9,9,9,9,9,10,10,10,10,10,10,10,10,10,10,10,10,11,11,11,11,11,11,11,11,11,11,11,11,12,12,12,12,12,12,12,12,12,12,12,12,12,13,13,13,13,13,13,13,13,13,13,13,13,13,14,14,14,14,14,14,14,14,14,14,14,15,15,15,15,15,15,15,15,15,15,15,15,15,15,16,16,16,16,16,16,16,16,16,16,16,16,16,16,17,17,17,17,17,17,17,17,17,17,17,17,18,18,18,18,18,18,18,18,18,18,18,18,18,19,19,19,19,19,19,19,19,19,19,19,19,19,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,21,21,21,21,21,21,21,21,21,21,21,21,21,21,22,22,22,22,22,22,22,22,22,22,22,22,22,22,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,24,24,24,24,24,24,24,24,24,24,24,24,24,24,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,26,26,26,26,26,26,26,26,26,26,26,26,26,26,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,31,31,31,31,31,31,31,31,31,31,31,31,31,31,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,33,33,33,33,33,33,33,33,33,33,33,33,33,33,33,33,33,33,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,55,55,55,55,55,55,55,55,55,55,55,55,55,55,56,56,56,56,56,56,56,56,56,56,56,56,56,57,57,57,57,57,57,57,57,57,57,58,58,58,58,58,58,58,58,58,59,59,59,59,59,59,59,59,59,60,60,60,60,60,60,61,61,61,61,61,61,61,62,62,62,62,63,63,63,63,64,64,64,64,64,65,65,66,66,66,66,67,67,68,68,68,69,69,70,70,71,71,72,72,73,73,73,75,75,76,76,78,78,80,80,80,82,82,84,84,87,87,90,90,90,93,93,97,97,101,101,107,107,107,113,113,121,121,130,130,141,141,141,154,154,172,172,194,194,222,222").as_slice() ); assert_eq!( brightness_contrast_map(-77., -100.), string_data("0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,6,6,6,6,6,7,7,7,7,8,8,8,8,8,9,9,9,9,10,10,10,10,10,11,11,11,11,12,12,12,12,12,13,13,13,13,13,14,14,14,14,15,15,15,15,15,16,16,16,16,16,16,17,17,17,17,17,18,18,18,18,18,19,19,19,19,19,20,20,20,20,20,20,20,21,21,21,21,21,22,22,22,22,22,22,23,23,23,23,23,24,24,24,24,24,24,24,25,25,25,25,25,25,26,26,26,26,26,26,27,27,27,27,27,27,27,28,28,28,28,28,28,28,28,29,29,29,29,29,29,30,30,30,30,30,30,30,30,30,31,31,31,31,31,31,31,32,32,32,32,32,32,32,32,33,33,33,33,33,33,33,33,33,34,34,34,34,34,34,34,34,35,35,35,35,35,35,35,35,35,36,36,36,36,36,36,36,36,36,36,36,37,37,37,37,37,37,37,37,37,38,38,38,38,38,38,38,38,38,38,38,38,39,39,39,39,39,39,39,39,39,39,40,40,40,40,40,40,40,40,40,40,40,40,40,41,41,41,41,41,41,41,41,41,41,41,41,42,42,42,42,42,42,42,42,42,42,42,42,42,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,44,44,44,44,44,44,44,44,44,44,44,44,44,44,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,56,56,56,56,56,56,56,56,56,56,56,56,56,56,56,56,56,56,56,56,56,56,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,58,58,58,58,58,58,58,58,58,58,58,58,58,58,58,58,58,58,58,58,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,60,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,62,62,62,62,62,62,62,62,62,62,62,62,62,62,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,64,64,64,64,64,64,64,64,64,64,64,64,64,65,65,65,65,65,65,65,65,65,65,65,65,65,66,66,66,66,66,66,66,66,66,66,66,67,67,67,67,67,67,67,67,67,67,67,67,68,68,68,68,68,68,68,68,68,69,69,69,69,69,69,69,69,69,69,70,70,70,70,70,70,70,70,70,71,71,71,71,71,71,71,71,72,72,72,72,72,72,72,72,73,73,73,73,73,73,73,73,74,74,74,74,74,74,75,75,75,75,75,75,75,75,76,76,76,76,76,76,77,77,77,77,77,77,78,78,78,78,78,78,79,79,79,79,79,79,80,80,80,80,81,81,81,81,81,81,82,82,82,82,83,83,83,83,84,84,84,84,85,85,85,85,86,86,86,86,87,87,87,87,88,88,88,88,88,89,89,90,90,90,90,91,91,91,91,92,92,93,93,94,94,94,94,95,95,96,96,96,97,97,97,97,98,98,99,99,100,100,101,101,102,102,103,103,104,104,104,105,105,106,106,107,107,108,108,109,109,110,110,112,112,112,113,113,114,114,116,116,117,117,119,119,120,120,120,122,122,124,124,125,125,127,127,129,129,131,131,131,133,133,135,135,137,137,139,139,141,141,141,144,144,146,146,149,149,152,152,154,154,154,158,158,161,161,164,164,167,167,167,171,171,175,175,179,179,183,183,183,187,187,191,191,196,196,201,201,201,206,206,212,212,217,217,222,222,222,229,229,234,234,241,241,247,247").as_slice() ); assert_eq!( brightness_contrast_map(0., -100.), string_data("0,0,1,1,2,3,3,4,5,5,6,7,7,8,8,9,10,10,11,12,12,13,13,14,15,15,16,16,17,17,18,19,19,20,20,21,21,22,22,23,23,24,24,25,25,25,26,26,27,27,28,28,28,29,29,30,30,30,31,31,31,32,32,32,33,33,33,34,34,34,35,35,35,35,36,36,36,36,37,37,37,38,38,38,38,39,39,39,39,39,40,40,40,40,40,41,41,41,41,42,42,42,42,42,42,43,43,43,43,43,43,44,44,44,44,44,44,45,45,45,45,45,45,45,46,46,46,46,46,46,46,47,47,47,47,47,47,47,47,48,48,48,48,48,48,48,48,49,49,49,49,49,49,49,49,49,49,50,50,50,50,50,50,50,50,50,50,51,51,51,51,51,51,51,51,51,51,51,52,52,52,52,52,52,52,52,52,52,52,52,53,53,53,53,53,53,53,53,53,53,53,53,53,54,54,54,54,54,54,54,54,54,54,54,54,54,55,55,55,55,55,55,55,55,55,55,55,55,55,55,56,56,56,56,56,56,56,56,56,56,56,56,56,57,57,57,57,57,57,57,57,57,57,57,57,57,57,58,58,58,58,58,58,58,58,58,58,58,58,58,58,59,59,59,59,59,59,59,59,59,59,59,59,59,59,60,60,60,60,60,60,60,60,60,60,60,60,60,61,61,61,61,61,61,61,61,61,61,61,61,62,62,62,62,62,62,62,62,62,62,62,63,63,63,63,63,63,63,63,63,63,63,63,64,64,64,64,64,64,64,64,64,64,64,65,65,65,65,65,65,65,65,65,65,65,66,66,66,66,66,66,66,66,66,66,67,67,67,67,67,67,67,67,67,67,68,68,68,68,68,68,68,68,68,69,69,69,69,69,69,69,69,69,70,70,70,70,70,70,70,70,70,71,71,71,71,71,71,71,71,72,72,72,72,72,72,72,72,73,73,73,73,73,73,73,73,74,74,74,74,74,74,74,75,75,75,75,75,75,75,75,76,76,76,76,76,76,76,77,77,77,77,77,77,77,78,78,78,78,78,78,78,79,79,79,79,79,79,80,80,80,80,80,80,80,81,81,81,81,81,81,82,82,82,82,82,82,83,83,83,83,83,83,84,84,84,84,84,84,85,85,85,85,85,85,86,86,86,86,86,86,87,87,87,87,88,88,88,88,88,88,88,89,89,89,89,90,90,90,90,90,91,91,91,91,91,91,92,92,92,92,92,93,93,93,93,94,94,94,94,94,95,95,95,95,95,96,96,96,96,96,97,97,97,97,97,98,98,98,98,99,99,99,99,100,100,100,100,101,101,101,101,101,102,102,102,102,103,103,103,103,103,104,104,104,105,105,105,105,105,106,106,106,107,107,107,107,107,108,108,108,108,109,109,109,110,110,110,110,110,111,111,111,112,112,112,112,113,113,113,114,114,114,114,114,115,115,115,115,116,116,116,117,117,117,117,118,118,118,119,119,119,119,120,120,120,121,121,121,121,122,122,122,123,123,123,123,124,124,124,125,125,125,125,126,126,126,126,127,127,127,128,128,128,128,129,129,129,130,130,131,131,131,131,132,132,132,133,133,133,133,134,134,134,134,135,135,136,136,136,137,137,137,137,138,138,138,138,139,140,140,140,140,141,141,141,141,142,142,143,143,143,144,144,144,144,145,145,146,146,146,146,147,147,147,147,148,148,149,149,149,150,150,151,151,151,151,152,152,152,152,153,153,154,154,154,154,155,155,156,156,156,157,157,158,158,158,158,159,159,160,160,160,160,161,161,162,162,162,162,163,163,164,164,165,165,165,165,166,166,167,167,167,167,168,168,169,169,169,169,170,170,171,171,172,172,172,172,173,173,174,174,175,175,175,175,176,176,177,177,178,178,178,178,179,179,180,180,181,181,181,181,182,182,183,183,184,184,184,184,185,185,186,186,187,187,187,187,188,188,189,189,190,190,191,191,191,191,192,192,193,193,194,194,194,195,195,195,195,196,196,197,197,198,198,199,199,199,199,200,200,201,201,202,202,203,203,203,204,204,204,204,205,205,206,206,207,207,208,208,209,209,209,209,210,210,210,211,211,212,212,213,213,214,214,215,215,215,215,216,216,216,217,217,218,218,219,219,220,220,221,221,222,222,222,222,222,223,223,224,224,225,225,226,226,227,227,227,228,228,229,229,230,230,231,231,231,231,231,232,232,233,233,234,234,235,235,236,236,236,237,237,238,238,239,239,240,240,240,241,241,242,242,243,243,244,244,244,244,244,245,245,246,246,247,247,247,248,248,249,249,250,250,251,251,251,252,252,253,253,254,254,255,255").as_slice() ); assert_eq!( brightness_contrast_map(53., -100.), string_data("0,1,1,2,3,5,6,7,9,10,11,12,13,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,30,31,32,33,33,34,34,35,36,36,37,37,38,38,39,39,40,40,41,41,41,42,42,43,43,43,44,44,44,44,45,45,45,46,46,46,47,47,47,47,48,48,48,48,48,49,49,49,49,50,50,50,50,50,51,51,51,51,51,51,52,52,52,52,52,52,53,53,53,53,53,53,53,54,54,54,54,54,54,55,55,55,55,55,55,55,55,56,56,56,56,56,56,56,57,57,57,57,57,57,57,58,58,58,58,58,58,58,58,59,59,59,59,59,59,59,60,60,60,60,60,60,60,60,61,61,61,61,61,61,62,62,62,62,62,62,62,63,63,63,63,63,63,63,64,64,64,64,64,64,65,65,65,65,65,65,66,66,66,66,66,66,67,67,67,67,67,67,68,68,68,68,68,69,69,69,69,69,69,70,70,70,70,70,71,71,71,71,71,71,72,72,72,72,73,73,73,73,73,74,74,74,74,74,75,75,75,75,76,76,76,76,76,77,77,77,77,78,78,78,78,78,79,79,79,79,80,80,80,80,81,81,81,81,82,82,82,82,82,83,83,83,83,84,84,84,85,85,85,85,86,86,86,86,87,87,87,87,88,88,88,88,89,89,89,90,90,90,90,91,91,91,91,92,92,92,93,93,93,93,94,94,94,95,95,95,95,96,96,96,97,97,97,97,98,98,98,99,99,100,100,100,100,101,101,101,102,102,102,103,103,103,104,104,104,104,105,105,105,105,106,106,107,107,107,107,108,108,109,109,109,110,110,110,110,110,111,111,112,112,112,113,113,114,114,114,114,115,115,115,115,116,116,117,117,117,118,118,119,119,119,119,120,120,120,121,121,121,122,122,122,123,123,123,124,124,124,125,125,125,125,126,126,127,127,127,128,128,128,128,129,129,129,130,131,131,131,131,132,132,132,133,133,133,134,134,134,134,135,136,136,136,136,137,137,137,138,138,138,138,139,139,140,140,140,141,141,141,141,142,143,143,143,143,143,144,144,144,145,145,146,146,146,147,147,147,147,147,148,149,149,149,149,150,150,151,151,151,151,152,152,152,152,152,153,154,154,154,154,154,155,156,156,156,156,156,157,158,158,158,158,158,159,159,159,160,160,160,161,161,161,162,162,162,162,162,163,164,164,164,165,165,165,165,165,166,167,167,167,167,167,168,168,168,169,169,169,169,169,170,170,171,171,171,172,172,172,172,172,173,173,173,174,175,175,175,175,175,176,176,176,177,177,177,177,178,178,178,178,179,179,180,180,180,181,181,181,181,181,182,182,182,182,183,183,183,184,184,184,184,184,185,185,185,186,186,186,186,187,187,187,187,187,188,188,188,189,189,189,190,190,190,190,191,191,191,191,191,191,191,192,193,193,193,193,194,194,194,195,195,195,195,195,195,195,196,196,196,196,197,197,197,198,198,198,198,199,199,199,199,199,199,199,200,200,200,201,201,201,201,202,202,202,203,203,203,203,203,203,204,204,204,204,204,204,204,205,205,205,206,206,206,206,207,207,207,207,207,208,208,208,208,209,209,209,209,209,209,209,209,209,210,210,210,210,211,211,211,211,212,212,212,212,212,213,213,213,213,214,214,214,214,214,215,215,215,215,215,215,215,215,215,215,216,216,216,216,217,217,217,217,217,218,218,218,218,219,219,219,219,219,219,220,220,220,220,220,220,221,221,221,222,222,222,222,222,222,222,222,222,222,222,222,223,223,223,223,223,223,224,224,224,224,225,225,225,225,225,225,226,226,226,226,226,226,227,227,227,227,227,227,228,228,228,228,228,228,229,229,229,229,229,229,230,230,230,230,230,230,231,231,231,231,231,231,231,231,231,231,231,231,232,232,232,232,232,232,233,233,233,233,233,233,233,233,234,234,234,234,234,234,235,235,235,235,235,235,236,236,236,236,236,236,237,237,237,237,237,237,237,237,237,238,238,238,238,238,238,239,239,239,239,239,239,240,240,240,240,240,240,240,240,240,241,241,241,241,241,241,242,242,242,242,242,242,242,242,242,243,243,243,243,243,243,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,245,245,245,245,245,245,245,245,245,246,246,246,246,246,246,247,247,247,247,247,247,247,247,247,248,248,248,248,248,248,248,248,248,249,249,249,249,249,249,250,250,250,250,250,250,250,250,250,251,251,251,251,251,251,251,251,251,252,252,252,252,252,252,252,253,253,253,253,253,253,253,253,253,254,254,254,254,254,254,254,254,254,255,255,255,255").as_slice() ); assert_eq!( brightness_contrast_map(150., -100.), string_data("0,1,3,6,10,14,18,22,25,28,31,33,36,38,39,41,42,44,45,46,47,48,49,50,50,51,51,52,53,53,54,54,55,56,56,57,57,58,58,59,59,60,60,61,61,62,62,63,63,64,65,65,66,66,67,68,68,69,70,70,71,72,73,74,74,75,76,76,77,78,79,80,81,81,82,83,84,85,86,87,88,89,90,91,92,93,93,94,95,96,97,98,99,100,101,103,103,104,105,107,107,109,110,110,112,113,114,114,116,116,118,119,120,121,122,123,123,125,126,126,128,128,129,131,132,132,133,134,136,136,137,138,139,140,140,141,142,143,144,145,146,146,147,148,149,150,151,152,152,153,154,155,155,156,157,158,159,160,160,161,162,162,163,164,165,165,166,167,167,168,169,169,170,170,172,172,172,173,174,175,175,176,176,178,178,178,179,179,181,181,181,181,182,183,184,184,184,185,185,186,186,187,187,188,188,189,189,190,190,191,191,192,192,193,193,194,194,195,195,195,196,196,197,197,198,198,198,199,199,199,199,200,200,201,201,201,202,203,203,203,204,204,204,204,204,205,205,206,206,206,207,207,207,208,208,209,209,209,209,209,209,210,210,210,211,211,211,211,212,212,212,213,213,213,213,214,214,214,215,215,215,215,215,215,215,215,216,216,216,216,217,217,217,217,218,218,218,218,218,219,219,219,219,220,220,220,220,220,221,221,221,221,222,222,222,222,222,222,222,222,222,222,222,222,223,223,223,223,223,223,224,224,224,224,224,225,225,225,225,225,225,226,226,226,226,226,226,227,227,227,227,227,227,227,227,228,228,228,228,228,228,228,229,229,229,229,229,229,229,229,230,230,230,230,230,230,230,231,231,231,231,231,231,231,231,231,231,231,231,231,231,231,231,231,232,232,232,232,232,232,232,232,232,233,233,233,233,233,233,233,233,233,234,234,234,234,234,234,234,234,234,234,235,235,235,235,235,235,235,235,235,236,236,236,236,236,236,236,236,236,236,236,237,237,237,237,237,237,237,237,237,237,237,237,238,238,238,238,238,238,238,238,238,238,238,239,239,239,239,239,239,239,239,239,239,239,239,239,240,240,240,240,240,240,240,240,240,240,240,240,240,241,241,241,241,241,241,241,241,241,241,241,241,241,241,241,242,242,242,242,242,242,242,242,242,242,242,242,242,242,242,242,243,243,243,243,243,243,243,243,243,243,243,243,243,243,243,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,244,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,245,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,246,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,249,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,250,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,251,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255").as_slice() ); } }