通过C++ wrapper实现访问图像像素

1 template<class T> class Image 2 { 3     private: 4         IlpImage *imgp; 5     public: 6         Image(IplImage* img = 0) 7         { 8             imgp = img; 9         }10         inline T* operator[](const int rowIndx)11         {12             return( (T*)(imgp ->imageData + rowIndx * imgp ->widthStep));13         }14 };15 16 typedef struct {17     unsigned char b, g, r;18 }RgbPixel;19 20 typedef struct {21     float b, g, r;22 }RgbPixelFloat;23 24 typedef Image<RgbPixel>      RgbImage;25 typedef Imgae<RgbPixelFloat> RgbImageFloat;26 typedef Image<unsigned char> BwImage;27 typedef Image<float>         BwImageFloat;例：对3通道的字节型图像访问如下：

1 IplImage* img = cvCreateImage(cvSize(640, 480), IPL_DEPTH_8U, 3);2 RgbImage imgA(img);3 //假设访问第K通道、第i行、第j列的像素4 imgA[i][j].b = 111;5 imgA[i][j].g = 111;6 imgA[i][j].r = 111;

原文链接: https://www.cnblogs.com/yangxi/archive/2011/09/07/2170267.html

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