I’m having this problem:
I’m using a Unibrain Fire-I 530b firewire camera to do detection of people in a space. The camera is fitted with an IR pass filter.
When I access the camera with ofVideoGrabber I get this horrible color banding / posterization effect that is unusable for my tracking system: (see attached image)
I have tried to use QTkit ( with ofxQTKitVideoGrabber ) to access the camera image, and I get a very good quality image but I can’t access the camera settings for using manual exposure / gain / framerate etc…
Of course I need these manual settings for good detection, so that is not an option unfortunately.
The second attached image shows the quality with ofxQTKitVideoGrabber.
Does anyone know why I get this posterizing / color banding effect only with the ofVideoGrabber?
I’m on OSX 10.6.8, OF0062
thanks for any clues to this mystery,
!(http://forum.openframeworks.cc/uploads/default/1937/Screen shot 2011-11-04 at 14.41.13.png)
!(http://forum.openframeworks.cc/uploads/default/1938/Screen shot 2011-11-04 at 15.06.12.png)