《学习OpenCV》练习题第三章第七题

#include "opencv_libs.h" 2 #include <highgui.h> 3 #include <cv.h> 4 #include <stdio.h> 5  6 #pragma comment (lib,"opencv_calib3d231d.lib") 7 #pragma comment (lib,"opencv_contrib231d.lib") 8 #pragma comment (lib,"opencv_core231d.lib") 9 #pragma comment (lib,"opencv_features2d231d.lib")10 #pragma comment (lib,"opencv_flann231d.lib")11 #pragma comment (lib,"opencv_gpu231d.lib")12 #pragma comment (lib,"opencv_haartraining_engined.lib")13 #pragma comment (lib,"opencv_highgui231d.lib")14 #pragma comment (lib,"opencv_imgproc231d.lib")15 #pragma comment (lib,"opencv_legacy231d.lib")16 #pragma comment (lib,"opencv_ml231d.lib")17 #pragma comment (lib,"opencv_objdetect231d.lib")18 #pragma comment (lib,"opencv_ts231d.lib")19 #pragma comment (lib,"opencv_video231d.lib")20 21 /*22  *《学习OpenCV》第三章第五题23  * 完成时间：0:41 3/3 星期日  201324  */25 26 int main()27 {28     // 加载一个三通道的彩色图像29     IplImage * srcImage = cvLoadImage("lena.bmp", 1);30 31     // 分割成R, G, B三个单通道图像32     IplImage* red_plane = cvCreateImage(cvGetSize(srcImage), srcImage->depth, 1);33     IplImage* green_plane = cvCreateImage(cvGetSize(srcImage), srcImage->depth, 1);34     IplImage* blue_plane = cvCreateImage(cvGetSize(srcImage), srcImage->depth, 1);35 36     // 分离RGB图像的顺序为 B, G, R37     cvSplit(srcImage, blue_plane, green_plane, red_plane,  NULL);38 39     // 克隆绿图两次40     IplImage* clone1 = cvCloneImage(green_plane);41     IplImage* clone2 = cvCloneImage(green_plane);42 43     // 找到绿色平面的最大值和最小值44     double dMaxValue, dMinValue;45     cvMinMaxLoc(green_plane, &dMinValue, &dMaxValue, NULL, NULL, NULL);46     printf("Max: %f\tMin: %f\n", dMaxValue, dMinValue);47 48     // 将clone1的所有元素赋值为thresh = (unsigned char)((max - min)/2))49     unsigned char thresh = (dMaxValue - dMinValue)/2;50     cvSet(clone1, cvScalarAll(thresh), 0);51     // 将clone2的所有元素赋零52     cvSet(clone2, cvScalarAll(0), 0);53 54     // 生成掩码图像55     cvCmp(green_plane, clone1, clone2, CV_CMP_GE);56 57     // 显示结果58     cvSubS(green_plane, cvScalarAll(thresh/2), green_plane, clone2 );59 60     cvShowImage("clone1", clone1);61     cvShowImage("clone2", clone2);62 63     cvShowImage("红", red_plane);64     cvShowImage("绿", green_plane);65     cvShowImage("蓝", blue_plane);66     cvShowImage("原始图像", srcImage);67     68     cvvWaitKey(0);69 70     cvReleaseImage(&srcImage);71     cvReleaseImage(&red_plane);72     cvReleaseImage(&green_plane);73     cvReleaseImage(&blue_plane);74     cvReleaseImage(&clone1);75     cvReleaseImage(&clone2);76     cvDestroyAllWindows();77     return 0;78 }

运行结果：