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  • 角点检测

    ==========
    #include <stdio.h>
    #include "cv.h"
    #include "highgui.h"
    #define max_corners 100

    int main( int argc, char** argv )
    {
        int cornerCount=max_corners;
        CvPoint2D32f corners[max_corners];
        double qualityLevel;
        double minDistance;
        IplImage *srcImage = 0, *grayImage = 0, *corners1 = 0, *corners2 = 0;
        int i;
        CvScalar color = CV_RGB(255,0,0);
       
        cvNamedWindow( "image", 1 ); // create HighGUI window with name "image"
       
        //Load the image to be processed
        srcImage = cvLoadImage("..//..//c//pic3.png", 1);
       
        grayImage = cvCreateImage(cvGetSize(srcImage), IPL_DEPTH_8U, 1);
       
        //copy the source image to copy image after converting the format
        cvCvtColor(srcImage, grayImage, CV_BGR2GRAY);
       
        //create empty images of same size as the copied images
        corners1= cvCreateImage(cvGetSize(srcImage), IPL_DEPTH_32F, 1);
        corners2= cvCreateImage(cvGetSize(srcImage),IPL_DEPTH_32F, 1);
       
        cvGoodFeaturesToTrack (grayImage, corners1, corners2, corners,
            &cornerCount, 0.05, 5, 0);
       
        printf("num corners found: %d\n", cornerCount);
       
        // draw circles at each corner location in the gray image and
        // print out a list the corners
        if(cornerCount>0)
        {
            for (i=0; i<cornerCount; i++)
            {
                cvCircle(srcImage, cvPoint((int)(corners[i].x), (int)(corners[i].y)), 6,
                    color, 2, CV_AA, 0);
            }
        }
       
        cvShowImage( "image", srcImage );
       
        cvReleaseImage(&srcImage);
        cvReleaseImage(&grayImage);
        cvReleaseImage(&corners1);
        cvReleaseImage(&corners2);
       
        cvWaitKey(0); // wait for key. The function has
        return 0;
    }

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  • 原文地址:https://www.cnblogs.com/wqj1212/p/1305632.html
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