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VideoProcessor.cpp
Package: cvOnMFC.rar　[view]
Upload User: huiyuanjf
Upload Date: 2022-05-15
Package Size: 132k
Code Size: 2k
Category:

OpenCV

Development Platform:

Visual C++

VideoProcessor.cpp：Code Content
  1. #include "StdAfx.h"
  2. #include "VideoProcessor.h"
  4. using namespace cv;
  6. UINT ProcessFunction(LPVOID lpParam)
  7. {
  8. VideoProcessor *proc = (VideoProcessor*)lpParam;
  9. while (true)
  10. {
  11. proc->Capture();
  12. proc->Process();
  13. //proc->Display();
  14. if (WaitForSingleObject(proc->eventStop, 0) == WAIT_OBJECT_0)
  15. {
  16. break;
  17. }
  18. }
  19. return 0;
  20. }
  22. VideoProcessor::VideoProcessor()
  23. {
  24. isRunning = false;
  25. }
  27. VideoProcessor::~VideoProcessor()
  28. {
  29. Stop();
  30. }
  32. void VideoProcessor::Start(int deviceIndex)
  33. {
  34. if (isRunning == true)
  35. {
  36. return;
  37. }
  38. cap = new VideoCapture(deviceIndex);
  39. if (cap->isOpened() == false)
  40. {
  41. return;
  42. }
  43. eventStop = CreateEvent(NULL, FALSE, NULL,NULL);
  44. procThread = AfxBeginThread(ProcessFunction, this);
  45. isRunning = true;
  46. return;
  47. }
  49. void VideoProcessor::Stop()
  50. {
  51. if (isRunning == false)
  52. {
  53. return;
  54. }
  55. SetEvent(eventStop);
  56. WaitForSingleObject(procThread->m_hThread, INFINITE);
  57. delete cap;
  58. CloseHandle(eventStop);
  59. isRunning = false;
  60. }
  62. bool VideoProcessor::IsRunning()
  63. {
  64. return isRunning;
  65. }
  67. void VideoProcessor::Capture()
  68. {
  69. if (isRunning == false)
  70. {
  71. return;
  72. }
  73. Mat imgOrg;
  74. (*cap) >> imgOrg;
  75. resize(imgOrg, imgSrc, Size(480, 360));
  76. return;
  77. }
  79. void VideoProcessor::Process()
  80. {
  81. if (isRunning == false)
  82. {
  83. return;
  84. }
  85. Mat src = imgSrc;
  86. Mat dst;
  87. dilate(src, dst, Mat());
  88. imgDst = dst;
  89. return;
  90. }
  92. void VideoProcessor::Display()
  93. {
  94. imshow("Image", imgDst);
  95. HWND hWnd= (HWND)cvGetWindowHandle("Image");
  96. SendMessage(hWnd,WM_PAINT,NULL,NULL);
  98. }