Created
August 29, 2023 12:56
-
-
Save jsonzilla/6263aa482a9f41e7a33a817b342e9630 to your computer and use it in GitHub Desktop.
Color generator
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #include <iostream> | |
| #include <vector> | |
| #include <random> | |
| #include <algorithm> | |
| #include <cmath> | |
| struct Color { | |
| int r, g, b; | |
| Color(int r, int g, int b) : r(r), g(g), b(b) {} | |
| double luminance() const { | |
| return 0.2126 * r + 0.7152 * g + 0.0722 * b; | |
| } | |
| double contrast(const Color& other) const { | |
| double l1 = luminance(); | |
| double l2 = other.luminance(); | |
| return (std::max(l1, l2) + 0.05) / (std::min(l1, l2) + 0.05); | |
| } | |
| }; | |
| std::vector<Color> generate_palette(int num_colors, double min_contrast) { | |
| std::random_device rd; | |
| std::mt19937 gen(rd()); | |
| std::uniform_int_distribution<int> dist(0, 255); | |
| std::vector<Color> palette; | |
| palette.emplace_back(dist(gen), dist(gen), dist(gen)); | |
| while (palette.size() < num_colors) { | |
| Color new_color(dist(gen), dist(gen), dist(gen)); | |
| bool valid = true; | |
| for (const Color& color : palette) { | |
| if (new_color.contrast(color) < min_contrast) { | |
| valid = false; | |
| break; | |
| } | |
| } | |
| if (valid) { | |
| palette.push_back(new_color); | |
| } | |
| } | |
| return palette; | |
| } | |
| int main() { | |
| std::vector<Color> palette = generate_palette(5, 4.5); | |
| for (const Color& color : palette) { | |
| std::cout << "RGB(" << color.r << ", " << color.g << ", " << color.b << ")" << std::endl; | |
| } | |
| return 0; | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment