blog.V1ru8.net » DirectShow http://blog.v1ru8.net Mon, 28 Sep 2009 15:55:13 +0000 en hourly 1 http://wordpress.org/?v=3.2.1 Video Filters in OpenCV http://blog.v1ru8.net/2009/04/02/video-filters-in-opencv/ http://blog.v1ru8.net/2009/04/02/video-filters-in-opencv/#comments Thu, 02 Apr 2009 21:58:14 +0000 Thomas Post http://blog.v1ru8.net/?p=284 For the “Audio and Video Processing” lecture tomorrow I had to write some simple video filters. The professor recommended to use the DirectShow SDK. But everyone who knows me knows that when there is a way to do something without Windows I will do it without! So I used the OpenCV library from Intel. Which I know from my last semester project. I wrote a little program who uses the iSight as video source. (based on the OpenCV XCode example project) You can select 8 diffrent video filters by pressing number 1-8 on your keyboard.

  • 0: no filter
  • 1: 3×3 Sobelfilter Horizontal
  • 2: 3×3 Sobelfilter Vertical
  • 3: 3×3 Laplace
  • 4: 3×3 Box Filter
  • 5: 3×3 Gauss Filter
  • 6: 5×5 Gauss Filter
  • 5: 5×5 Box Filter
  • 6: 7×7 Box Filter (overflow)

With the key ‘t’ you can add an additional filter who generates four abstract colored pictures.

Filter 1 Filter 2 Filter 2

Downloads:

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