I'm trying to write my first Core Image filter to find the "median"
color for a single row/column of pixels, very similar to the built-in
CIRowAverage filter.
To find the median value in a set, I need to sort the set from lowest
to highest color values and then find the value in the middle if the
set is odd, or average the 2 middle values if the set is even.
Since this is my first attempt at graphics programming on the GPU I
don't know if it makes sense for this problem (sorting)?
Any advise?
Thanks.
Benjamin King
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