ios4 - Edit image, using openGL -

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i have been doing searching last couple of days , have been curious how this. have uiimagepickercontroller.

so want add effect black , white, sepia, etc. creating custom uiimagepickervcontroller , curious. can done opengl es? if so, how?

this possible through use of pixel shaders using opengl-es 2.0. write objective-c++ routine gets pixels of image array applies custom algorithm modify color of image.

edit:

here links might started.

http://www.sunsetlakesoftware.com/2010/10/22/gpu-accelerated-video-processing-mac-and-ios

http://www.dreamincode.net/forums/topic/76816-image-processing-tutorial/

http://www.efg2.com/lab/library/imageprocessing/algorithms.htm


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