应用介绍

机器人视觉模式识别项目.

#include <cv.h>
#include <highgui.h>
#pragma comment(lib,"cv.lib")
#pragma comment(lib,"cxcore.lib")
#pragma comment(lib,"highgui.lib")
#pragma comment(lib,"ml.lib")
#pragma comment(lib,"cvcam.lib")
int main (int argc, char **argv)
{
 double angle = -45.0, scale = 1.0;
 IplImage *src_img = 0, *dst_img = 0;
 CvMat *map_matrix;
 CvPoint2D32f center;
 CvPoint pt1, pt2;
 CvRect rect;
 if (argc >= 2)
  src_img = cvLoadImage (argv[1], CV_LOAD_IMAGE_ANYDEPTH | CV_LOAD_IMAGE_ANYCOLOR);
 if (src_img == 0)
  return -1;
 rect.x = (int) (src_img->width * 0.25);
 rect.y = (int) (src_img->height * 0.25);
 rect.width = (int) (src_img->width * 0.5);
 rect.height = (int) (src_img->height * 0.5);
 cvSetImageROI (src_img, rect);
 dst_img = cvCloneImage (src_img);
 map_matrix = cvCreateMat (2, 3, CV_32FC1);
 center = cvPoint2D32f (src_img->width * 0.25, src_img->height * 0.25);
 cv2DRotationMatrix (center, angle, scale, map_matrix);
 cvWarpAffine (src_img, dst_img, map_matrix, CV_INTER_LINEAR + CV_WARP_FILL_OUTLIERS, cvScalarAll (255));
 cvResetImageROI (src_img);
 cvResetImageROI (dst_img);
 pt1 = cvPoint (rect.x, rect.y);
 pt2 = cvPoint (rect.x + rect.width, rect.y + rect.height);
 cvRectangle (src_img, pt1, pt2, CV_RGB (255, 0, 255), 2, 8, 0);
 cvNamedWindow ("src", CV_WINDOW_AUTOSIZE);
 cvNamedWindow ("dst", CV_WINDOW_AUTOSIZE);
 cvShowImage ("src", src_img);
 cvShowImage ("dst", dst_img);
 cvWaitKey (0);
 cvDestroyWindow ("src");
 cvDestroyWindow ("dst");
 cvReleaseImage (&src_img);
 cvReleaseImage (&dst_img);
 cvReleaseMat (&map_matrix);
 return 1;
}
//end of rotate.cpp

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