Hi Reynaldo,

since a camera lens distortion is fixed per camera (at least with a certain 
FOV) you don't need to use a dynamic correction method. Once I photographed a 
grid on a paper and measured all the correction vectors by hand. With that i 
created a displacement map and displaced each pixel with a shader. Anyways, I 
am pretty sure that there is some mathematical way to get to a displacement 
formula matching your camera.

What would you like to do with it? What kind of camera you are using?

Best,

Achim Breidenbach
Boinx Software

On 21.10.2010, at 21:51, Reynaldo Tortoledo wrote:

> Hi everyone,
> 
> My first day playing with QC and I am wondering if it is possible to correct 
> distortion effects from a camera.
> 
> Mirek Rusin's work suggests it is possible to locate the corners of a 
> chessboard. The output could be used to apply OpenCV's undistortion algorithm 
> on the camera input... however, would this be possible? 
> 
> http://github.com/mirek/quartzcomposer-opencv
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