You have to properly configure your QTVideoContext to get this.
By default, most of the CoreVideo sample code uses
QTOpenGLTextureContextCreate(), and so, you get CVOpenGLTextureRef.
If you want to retreive CVPixelBuffers, you have to create your
QTVisualContext using the QTPixelBufferContext
I understand, processing is made on CPU anyway. The overhead you get is
because you duplicate (or redraw) the image before processing it.
I believe you actually get a CVImageBufferRef from QTKit, not a CIImage,
which resides in memory (not VRAM, as it comes from a camera anyway). You
could get acc
I think I was unclear on where I was lost. I didn't think that I would be
able to use the OpenTouch blob detection framework, because I couldn't pass
it a CIImage, and converting the CIImage to an NSBitMapImageRep was too
slow. The only way to pass the image data to the blob detection library was
t
Hello,I am trying to write a program that will detect bright "blobs" of
light in an image and then track those blobs of light. I would be a Cocoa
version of OpenTouch at http://code.google.com/p/opentouch/. I am wondering
the best way to do this sort of image processing with Cocoa frameworks.
I ha
