使用inpaint例子，去除水印

http://www.opencv.org.cn/forum.php?mod=viewthread&tid=33151

1. #include "stdafx.h"
2. #include "opencv2/highgui/highgui.hpp"
3. #include "opencv2/imgproc/imgproc.hpp"
4. #include "opencv2/photo/photo.hpp"
5. #include <iostream>
6. using namespace cv;
7. using namespace std;
8. static void help()
9. {
10. cout << "\nCool inpainging demo. Inpainting repairs damage to images by floodfilling the damage \n"
11. << "with surrounding image areas.\n"
12. "Using OpenCV version %s\n" << CV_VERSION << "\n"
13. "Usage:\n"
14. "./inpaint [image_name -- Default fruits.jpg]\n" << endl;
15. cout << "Hot keys: \n"
16. "\tESC - quit the program\n"
17. "\tr - restore the original image\n"
18. "\ti or SPACE - run inpainting algorithm\n"
19. "\t\t(before running it, paint something on the image)\n" << endl;
20. }
21. Mat img, inpaintMask;
22. Point prevPt(-1,-1);
23. static void onMouse( int event, int x, int y, int flags, void* )
24. {
25. if( event == CV_EVENT_LBUTTONUP || !(flags & CV_EVENT_FLAG_LBUTTON) )
26. prevPt = Point(-1,-1);
27. else if( event == CV_EVENT_LBUTTONDOWN )
28. prevPt = Point(x,y);
29. else if( event == CV_EVENT_MOUSEMOVE && (flags & CV_EVENT_FLAG_LBUTTON) )
30. {
31. Point pt(x,y);
32. if( prevPt.x < 0 )
33. prevPt = pt;
34. line( inpaintMask, prevPt, pt, Scalar::all(255), 5, 8, 0 );
35. line( img, prevPt, pt, Scalar::all(255), 5, 8, 0 );
36. prevPt = pt;
37. imshow("image", img);
38. }
39. }
40. int main( int argc, char** argv )
41. {
42. //读取图像和mask图像
43. char* filename = argc >= 2 ? argv[1] : (char*)"fruits.jpg";
44. Mat img0 = imread(filename, -1);
45. if(img0.empty())
46. {
47. cout << "Couldn't open the image " << filename << ". Usage: inpaint <image_name>\n" << endl;
48. return 0;
49. }
50. namedWindow( "image", 1 );
51. img = img0.clone();
52. imshow("image", img);
53. Mat inpaintMask = imread("mask.jpg", 0);
54. imshow("mask",inpaintMask);
55. Mat inpainted;
56. //注意这个inpaintmask的
57. inpaint(img, inpaintMask, inpainted, 3, CV_INPAINT_TELEA);
58. imshow("inpainted image", inpainted);
59. cv::waitKey();
60. return 0;
61. }

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