《学习OpenCV》练习题第四章第一题b&c

 1 #include <highgui.h>
 2 #include <cv.h>
 3 
 4 #pragma comment (lib,"opencv_calib3d231d.lib")
 5 #pragma comment (lib,"opencv_contrib231d.lib")
 6 #pragma comment (lib,"opencv_core231d.lib")
 7 #pragma comment (lib,"opencv_features2d231d.lib")
 8 #pragma comment (lib,"opencv_flann231d.lib")
 9 #pragma comment (lib,"opencv_gpu231d.lib")
10 #pragma comment (lib,"opencv_haartraining_engined.lib")
11 #pragma comment (lib,"opencv_highgui231d.lib")
12 #pragma comment (lib,"opencv_imgproc231d.lib")
13 #pragma comment (lib,"opencv_legacy231d.lib")
14 #pragma comment (lib,"opencv_ml231d.lib")
15 #pragma comment (lib,"opencv_objdetect231d.lib")
16 #pragma comment (lib,"opencv_ts231d.lib")
17 #pragma comment (lib,"opencv_video231d.lib")
18 
19 /*
20  *《学习OpenCV》第四章第一题b部分
21  * 完成时间：19:24 3/10 星期日 2013
22  */
23 
24 int main()
25 {
26     char * file_path = "H:/TDDOWNLOAD/Video/1111.avi";
27     CvCapture * capture = 0;
28     capture = cvCreateFileCapture(file_path);
29 
30     // 载入视频文件失败
31     if(capture == NULL)
32     {
33         printf("Can't load the video file, quit...
");
34         return 0;
35     }
36     
37     // 每一帧
38     IplImage * frame = cvQueryFrame(capture);;
39     // 灰度后的每一帧
40     IplImage * gray_frame = cvCreateImage( cvGetSize(frame), frame->depth, 1);
41     IplImage * gray_frame_3 = cvCreateImage(cvGetSize(frame), frame->depth, 3);
42     // 边缘检测后的每一帧
43     IplImage * canny_frame = cvCreateImage( cvGetSize(frame), frame->depth, 1);
44     IplImage * canny_frame_3 = cvCreateImage(cvGetSize(frame), frame->depth, 3);
45     // 聚合来的每一帧
46     IplImage * total_frame = cvCreateImage( cvSize(frame->width * 3, frame->height),
47         frame->depth, frame->nChannels);
48 
49     while(1)
50     {
51         // 从视频文件读入数据
52         frame = cvQueryFrame(capture);
53         if(!frame)
54             break;
55 
56         // 将读入数据转换为灰度图
57         cvCvtColor( frame, gray_frame, CV_RGB2GRAY );
58         cvCvtColor( gray_frame, gray_frame_3, CV_GRAY2BGR );
59         
60         // 对图像做Canny边缘检测
61         cvCanny( gray_frame, canny_frame, 30, 100, 3);
62         cvCvtColor( canny_frame, canny_frame_3, CV_GRAY2BGR );
63 
64         // 将三幅图像分别复制到新的图像中
65         cvSetImageROI( total_frame, cvRect(0, 0, frame->width, frame->height));
66         cvCopy( frame, total_frame, 0);
67         cvResetImageROI(total_frame);
68                 
69         cvSetImageROI( total_frame, cvRect(frame->width, 0, gray_frame->width, gray_frame->height));
70         cvCopy( gray_frame_3, total_frame, 0);
71         cvResetImageROI(total_frame);
72                 
73         cvSetImageROI( total_frame, cvRect(frame->width*2, 0, canny_frame->width, canny_frame->height));
74         cvCopy( canny_frame_3, total_frame, 0);
75         cvResetImageROI(total_frame);
76 
77         // 在图像的三个不同的部分写上合适的文字标签
78         CvFont textFont = cvFont( 10, 1);
79         cvInitFont( &textFont, CV_FONT_HERSHEY_SIMPLEX, 0.5f, 0.5f, 0, 1 );
80 
81         cvPutText( total_frame, "Frame", cvPoint( 10, 20 ), &textFont, cvScalar( 0, 0, 255 ) );
82         cvPutText( total_frame, "Frame_Gray", cvPoint( frame->width + 10, 20 ), &textFont, cvScalar( 0, 0, 255 ) );
83         cvPutText( total_frame, "Frame_Canny", cvPoint( frame->width * 2 + 10, 20 ), &textFont, cvScalar( 0, 0, 255 ) );
84 
85 
86 
87         // 显示图像
88         cvShowImage("total", total_frame);
89     
90         char c = cvWaitKey(33);
91         if(c == 27)
92             break;
93     }
94     cvReleaseImage( & gray_frame );
95     cvReleaseCapture(&capture);
96     cvDestroyAllWindows();
97 
98     return 0; 
99 }
运行结果：