程序完成 “毛玻璃” 特效, 不过边缘没有处理,使得最终的图像有黑边。

不过,有了黑边,感觉效果也不错,所以这个bug 没有管。

#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
"diffuse or groundglass " 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_2(Image_in.size(), CV_32FC3);
Image_in.convertTo( Image_2, CV_32FC3); Mat Image_Blur(Image_in.size(), CV_32FC3);
GaussianBlur(Image_2, Image_Blur, Size (5, 5), 0);
Image_Blur=Image_Blur/255;
Show_Image(Image_Blur, "blur"); int nrows=Image_Blur.rows;
int ncols=Image_Blur.cols; cout<<"Rows: "<<nrows<<endl;
cout<<"Cols: "<<ncols<<endl; Mat Image_Out(Image_Blur.size(), CV_32FC3); int P_size; P_size=3;
float k1, k2;
float m, n;
int h, w; srand( (unsigned)time(NULL) ); for (int i=0+P_size; i<nrows-P_size; i++ )
for (int j=0+P_size; j<ncols-P_size; j++ )
{ k1=(double)((rand() % 100))/100.0-0.5;
k2=(double)((rand() % 100))/100.0-0.5; m=(k1*(P_size*2-1));
n=(k2*(P_size*2-1)); h=(int)(i+m)% nrows;
w=(int)(j+n)% ncols; Image_Out.at<Vec3f>(i,j)=Image_Blur.at<Vec3f>(h,w); } Show_Image(Image_Out, "out.jpg"); 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); }

原图

OpenCV——PS滤镜,毛玻璃特效-LMLPHP

效果图

OpenCV——PS滤镜,毛玻璃特效-LMLPHP

04-16 05:18