// define head function #ifndef PS_ALGORITHM_H_INCLUDED #define PS_ALGORITHM_H_INCLUDED #include <iostream> #include <string> #include "cv.h" #include "highgui.h" #include "cxmat.hpp" #include "cxcore.hpp" using namespace std; using namespace cv; void Show_Image(Mat&, const string &); #endif // PS_ALGORITHM_H_INCLUDED /* This program will generate "Shade" effect. */ #include "PS_Algorithm.h" #include <time.h> using namespace std; using namespace cv; int main(void) { string Img_name("4.jpg"); Mat Image_in; Image_in=imread(Img_name); Show_Image(Image_in, Img_name); Mat Image_out(Image_in.size(), CV_32FC3); Image_in.convertTo(Image_out, CV_32FC3); Mat Image_2(Image_in.size(), CV_32FC3); Image_in.convertTo(Image_2, CV_32FC3); Mat Map(Image_in.size(), CV_32FC3); Mat temp; float val; // build the mapping table /* for (int i=0; i<Image_2.rows; i++) { temp=Map.row(i); val=(float)(i)/(float)Image_2.rows; temp.setTo(Scalar(val,val,val)); } */ // build the mapping talbe for (int i=0; i<Image_2.cols; i++) { temp=Map.col(i); val=1-std::abs((float)(i)/((float)Image_2.cols/2)-1); temp.setTo(Scalar(val,val,val)); } Show_Image(Map, "Map"); cv::multiply(Image_2, Map, Image_out); Image_out=Image_out/255.0; Show_Image(Image_out, "out"); imwrite("out.jpg", Image_out*255); waitKey(); cout<<"All is well."<<endl; } #include "PS_Algorithm.h" #include <iostream> #include <string> using namespace std; using namespace cv; void Show_Image(Mat& Image, const string& str) { namedWindow(str.c_str(),CV_WINDOW_AUTOSIZE); imshow(str.c_str(), Image); }
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