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;
