RGB.zip_RGB识别_rgb value opencv

#include <cv.h> #include <highgui.h> #include <cmath> #include <vector> #include <iostream> using namespace std; const char *source_img="source image";//const就是用来修饰指针所指向的变量，即指针指向为常量； IplImage *source,*source_copy; IplImage *img0; int pt_num=0; void mouseHandler(int event, int x, int y, int flags, void* param) { if (event == CV_EVENT_LBUTTONDOWN) { CvFont font; uchar* ptr; char label[30]; img0 = (IplImage*) param; cvInitFont(&font, CV_FONT_HERSHEY_PLAIN, .85, .85, 0, 1, 8); ptr = cvPtr2D(img0, y, x, NULL); sprintf(label, " (%d, %d, %d, %d, %d)",x,y, ptr[0], ptr[1], ptr[2]); cvRectangle( img0, cvPoint(x+5, y - 13), cvPoint(x + 200, y + 8), CV_RGB(255, 255, 255), CV_FILLED, 8, 0 ); cvPutText( img0, label, cvPoint(x, y), &font, CV_RGB(0, 0, 0) ); cvShowImage(source_img, img0); } } int main(int argc,char *argv[]) { IplImage *source=cvLoadImage("E:/3.jpg",1); if (!source) { cout<<"can not load the image!"<<endl; return -1; } source_copy=cvCreateImage(cvSize(source->width,source->height),8,3); cvCopy(source,source_copy,0); cvNamedWindow(source_img,0); cvSetMouseCallback( source_img, mouseHandler,(void *)source_copy); cvShowImage(source_img,source_copy); cvWaitKey(0); return 0; }