void SaveDepthPNG(const cv::Mat_<float> depth, std::string& depth_png_path)
{
std::vector<int> compression_params;
compression_params.push_back(CV_IMWRITE_PNG_COMPRESSION);
compression_params.push_back(0); // 无压缩png.
compression_params.push_back(cv::IMWRITE_PNG_STRATEGY);
compression_params.push_back(cv::IMWRITE_PNG_STRATEGY_DEFAULT);
cv::Mat_<float> color_depth;
double min;
double max;
cv::minMaxIdx(depth, &min, &max);
cv::Mat adjMap;
float scale = 255 / (max - min);
depth.convertTo(adjMap, CV_8UC1, scale, -min * scale); // beta = -min *scale
cv::Mat falseColorsMap;
cv::applyColorMap(adjMap, falseColorsMap, cv::COLORMAP_JET);
cv::imwrite(depth_png_path, falseColorsMap, compression_params);
//cv::imshow("Out", falseColorsMap);
//cv::waitKey(0);
}
OpenCV将Mat数据保存成伪彩色的PNG影像
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转载自blog.csdn.net/rdw1246010462/article/details/123117292
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