I have an image with 12 bit data that I am down sampling to 8 bits and that
all works fine (I use: "convert file.jp2 -depth 8 file.jpg"). The problem I
have is the data values are grouped at the high end of the range
(3360-4060). When the remapping is done it is mapped over the entire range
(0-4095) so the resultant image is all washed out. Does anyone know how to
restrict (i.e.. stretch) the remapping range? What would be best is if
ImageMagick would calculate the image stats and then use 2 or 3 standard
deviations about the mean. If it can't do that then is there a way for me to
manually specify the range to use?
Thanks,
Larry
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