学习OpenCV：滤镜系列（10）——怀旧色 & 连环画 & 熔铸 & 冰冻

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版权所有：小熊不去实验室优快云博客

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怀旧色调色原理

#include <opencv/cv.h>
#include <opencv/highgui.h>

using namespace cv;
using namespace std;


int main()
{
	Mat src = imread("D:/scene04.jpg",1);
	int width=src.cols;
	int heigh=src.rows;
	RNG rng;
	Mat img(src.size(),CV_8UC3);
	for (int y=0; y<heigh; y++)
	{
		uchar* P0  = src.ptr<uchar>(y);
		uchar* P1  = img.ptr<uchar>(y);
		for (int x=0; x<width; x++)
		{
			float B=P0[3*x];
			float G=P0[3*x+1];
			float R=P0[3*x+2];
			float newB=0.272*R+0.534*G+0.131*B;
			float newG=0.349*R+0.686*G+0.168*B;
			float newR=0.393*R+0.769*G+0.189*B;
			if(