OpenCV——PS 图层混合算法(一)

原文链接: http://www.cnblogs.com/muyuge/p/6152380.html

具体的算法原理可以参考

PS图层混合算法之一(不透明度,正片叠底,颜色加深,颜色减淡)


// PS_Algorithm.h

#ifndef PS_ALGORITHM_H_INCLUDED

#define PS_ALGORITHM_H_INCLUDED

#include
#include
#include "cv.h"
#include "highgui.h"
#include "cxmat.hpp"

#include "cxcore.hpp"


using namespace std;
using namespace cv;

#endif // PS_ALGORITHM_H_INCLUDED


// main function

#include "PS_Algorithm.h"

void Transparent(Mat& src1, Mat& src2, Mat& dst, double alpha);
void Multiply(Mat& src1, Mat& src2, Mat& dst);
void Color_Burn(Mat& src1, Mat& src2, Mat& dst);
void Color_Dodge(Mat& src1, Mat& src2, Mat& dst);

int main(void)
{
    Mat Origin_Image1;
    Mat Origin_Image2;
    Origin_Image1=imread("2.jpg");
    Origin_Image2=imread("3.jpg");
    Mat Image_up(Origin_Image1.size(),CV_32FC3);
    Mat Image_down(Origin_Image2.size(), CV_32FC3);
    Origin_Image1.convertTo(Image_up,CV_32FC3);
    Origin_Image2.convertTo(Image_down,CV_32FC3);
    Image_up=Image_up/255;
    Image_down=Image_down/255;
    Mat Image_mix(Image_up);

    //double alpha=0.25;
    //Transparent(Image_up, Image_down, Image_mix, alpha);
    //Multiply(Image_up, Image_down, Image_mix);
    //Color_Burn(Image_up, Image_down, Image_mix);
    //Color_Dodge(Image_up, Image_down, Image_mix);
   
    namedWindow("Img", CV_WINDOW_AUTOSIZE);
    imshow("Img",Image_mix);
    waitKey();
    cvDestroyWindow("Img");
    cout<<"All is well."<     return 0;
}


// Transparent 不透明度
void Transparent(Mat& src1, Mat& src2, Mat& dst, double alpha)
{
    dst=alpha*src1+(1-alpha)*src2;
}


// Multiply 正片叠底
void Multiply(Mat& src1, Mat& src2, Mat& dst)
{
    for(int index_row=0; index_row     {
        for(int index_col=0; index_col         {
            for(int index_c=0; index_c<3; index_c++)
                dst.at(index_row, index_col)[index_c]=
                         src1.at(index_row, index_col)[index_c]*
                         src2.at(index_row, index_col)[index_c];
        }
    }
}


// Color_Burn 颜色加深
void Color_Burn(Mat& src1, Mat& src2, Mat& dst)
{
    for(int index_row=0; index_row     {
        for(int index_col=0; index_col         {
            for(int index_c=0; index_c<3; index_c++)
                dst.at(index_row, index_col)[index_c]=1-
                         (1-src1.at(index_row, index_col)[index_c])/
                         src2.at(index_row, index_col)[index_c];
        }
    }
}

// Color_Dodge 颜色减淡
void Color_Dodge(Mat& src1, Mat& src2, Mat& dst)
{
    for(int index_row=0; index_row     {
        for(int index_col=0; index_col         {
            for(int index_c=0; index_c<3; index_c++)
                dst.at(index_row, index_col)[index_c]=
                          src2.at(index_row, index_col)[index_c]/
                         (1-src1.at(index_row, index_col)[index_c]);
        }
    }
}


转载于:https://www.cnblogs.com/muyuge/p/6152380.html

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