OpenCV——PS滤镜算法之Spherize 球面化（凸出效果）-白红宇

OpenCV——PS滤镜算法之Spherize 球面化（凸出效果）

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发布时间：2019-06-23

本文共 1778 字，大约阅读时间需要 5 分钟。

// define head function#ifndef PS_ALGORITHM_H_INCLUDED#define PS_ALGORITHM_H_INCLUDED#include 
     
      #include 
      
       #include "cv.h"#include "highgui.h"#include "cxmat.hpp"#include "cxcore.hpp"#include "math.h"using namespace std;using namespace cv;void Show_Image(Mat&, const string &);#endif // PS_ALGORITHM_H_INCLUDED#include "PS_Algorithm.h"#include 
       
        using namespace std;using namespace cv;#define pi 3.1415926int main(){    string Img_name("4.jpg");    Mat Img;    Img=imread(Img_name);    Mat Img_out(Img.size(), CV_8UC3);    Img.copyTo(Img_out);    int width=Img.cols;    int height=Img.rows;    float R;    float e;    float a,b;    float alpha=0.75;    float K=pi/2;    a=height/2.0; b=width/2.0;    e=(float)width/(float)height;    R=std::min(a,b);    Point Center(width/2, height/2);    float radius,Dis,new_x, new_y;    float p,q,x1,y1,x0,y0;    float theta;    for (int y=0; y
        
         =width-1)  new_x=width-2;                if(new_y<0)         new_y=0;                if(new_y>=height-1) new_y=height-2;                x1=(int)new_x;                y1=(int)new_y;                p=new_x-x1;                q=new_y-y1;                for (int k=0; k<3; k++)                {                    Img_out.at
         
          (y, x)[k]=(1-p)*(1-q)*Img.at
          
           (y1, x1)[k]+ (p)*(1-q)*Img.at
           
            (y1,x1+1)[k]+ (1-p)*(q)*Img.at
            
             (y1+1,x1)[k]+ (p)*(q)*Img.at
             
              (y1+1,x1+1)[k]; } } } } Img_out=Img_out; Show_Image(Img_out, "out"); imwrite("Out.jpg", Img_out); waitKey();}// define the show image#include "PS_Algorithm.h"#include 
              
               #include 
               
                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);}