opencv图片右转函数

因为需要将函数进行右转，发现opencv自带的过于麻烦。自己写了个右转的。可以根据这个想法写出任何方向的

 1 //函数功能，右转图片
 2 IplImage* convertImage(IplImage* image)
 3 {
 4     CvSize size = cvGetSize(image);
 5     IplImage* ori_image = cvCreateImage(cvSize(size.width / 2, size.height / 2), image->depth, image->nChannels);
 6     IplImage* cvt_image = cvCreateImage(cvSize(size.height / 2, size.width / 2), image->depth, image->nChannels);
 7     cvResize(image, ori_image);
 8     int x, y, w;
 9     for (y = ori_image->height; y >= 0; y--)
10     {
11         uchar* oriptr = (uchar*)(ori_image->imageData + y*ori_image->widthStep);
12         for (x = 0; x < ori_image->width; x++)
13         {
14             uchar* curptr = (uchar*)(cvt_image->imageData + x*cvt_image->widthStep);
15             curptr[3 * y] = oriptr[3 * x];
16             curptr[3 * y + 1] = oriptr[3 * x + 1];
17             curptr[3 * y + 2] = oriptr[3 * x + 2];
18         }
19     }
20     cvReleaseImage(&image);
21     cvReleaseImage(&ori_image);
22     return cvt_image;
23 }