The manual just says that the parameters a, b, c and d are coefficients for each colour channel, but what do they each do and what are the range of values?
Thanks, this is what I had assumed. All I want to do is to radially stretch/compress the red and blue channels independently VERY slightly to correct chromatic aberrations. I was hoping you might be able to indicate what each parameter did and typical values to give a very small uniform radial stretch/compression.
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RadialStretch coefficients
Posted - Aug 16 2013 : 04:29:55
