21种颜色的rgb值及显示

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原创最新推荐文章于 2026-09-20 19:35:34 发布 2k 阅读 AI 写同款· GEO 优化 ›

全彩RGB呼吸灯效果实现-STM32 全彩RGB呼吸灯效果实现——PWM方式全彩LED 灯控制原理: 使用STM32控制LED灯输出多种亮度等级，可以通过控制输出脉冲的占空比来实现,见图1. [外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-oDFPJ2Ny-1573807073244)(C:/Users/Administrator/Desktop/makedownfile/1.png)] 图1 不同占空... 阅读详情

在这里插入图片描述

#include <opencv2/opencv.hpp>

int colors[21][3] = 
    {
        {255, 0, 0}, 
        {255, 69, 0}, 
        {255, 99, 71}, 
        {255, 140, 0}, 
        {255, 165, 0}, 
        {238, 173, 14},
        {255, 193, 37}, 
        {255, 255, 0}, 
        {255, 236, 139},
        {202, 255, 112}, 
        {0, 255, 0}, 
        {84, 255, 159},
        {127, 255, 212}, 
        {0, 229, 238}, 
        {152, 245, 255},
        {178, 223, 238}, 
        {126, 192, 238}, 
        {28, 134, 238},
        {0, 0, 255}, 
        {72, 118, 255}, 
        {122, 103, 238} 
    };

int main() {
    int height = 630, width = 360;
    cv::Mat src = cv::Mat::zeros(height, width, CV_8UC3);
    for(int i = 0; i < height; ++i) {
        for(int j = 0; j < width; ++j) {
            src.at<cv::Vec3b>(i, j)[0] = colors[i/30][2];
            src.at<cv::Vec3b>(i, j)[1] = colors[i/30][1];
            src.at<cv::Vec3b>(i, j)[2] = colors[i/30][0];
        }
        cv::putText(src, std::to_string(colors[i/30][0]), cv::Point(0,i/30*30+15), cv::FONT_HERSHEY_PLAIN,1,cv::Scalar(255, 255, 255), 2);
        cv::putText(src, std::to_string(colors[i/30][1]), cv::Point(60,i/30*30+15), cv::FONT_HERSHEY_PLAIN,1,cv::Scalar(255, 255, 255), 2);
        cv::putText(src, std::to_string(colors[i/30][2]), cv::Point(120,i/30*30+15), cv::FONT_HERSHEY_PLAIN,1,cv::Scalar(255, 255, 255), 2);
    }
    cv::imshow("img", src);
    cv::waitKey(0);

    return 0;
}