I haven't found a way to turn images into anything other than
different images with the Core Image Kernel patch. I've also been
playing with a lot of image processing algorithms, but anything that
takes an image input has to give an image output, and there's
currently no way I've found to pass in persistent data that can be
modified by the filter.
So basically, you have to do any of those steps outside of QC in an
ObjectiveC++ shell. I already filed a feature request at
bugreport.apple.com... you might want to do the same.
--Sam
On Jun 5, 2005, at 12:29 PM, Takashi Okamoto wrote:
hi.
i was hoping to get some direction on how i can get some basic
color tracking done in qc. i have a video source (for testing i
just have a quicktime movie of a red dot moving around in a black
background) and i just want to get the (x,y) coordinate of the
center of the dot at each frame. i've done this in the past with
processing <http://processing.org> by adding all (x,y) positions
that are red and dividing it by the number of red pixels.
will i be able to do this in QC? i see that i can use the core
image kernel patch to get color values, but i don't know how i can
add the (x,y) coordinates and return the result every time it sees
a red pixel.
any suggestions will be greatly appreciated. thanks!
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