- Tue Apr 22, 2008 4:22 am
#267453
Run the Hi-pass filter at a very high pixel radius, and then fade it to luminosity mode. You may need to putz with curves to rebalance colour etc, but that will do it.
A more complex solution that has a few more options is to:
1) dupe the image
2) convert to LAB colour
3) dupe the L channel to another new file and convert it to greyscale.
4) dupe the background layer (was the L channel) in the same document, invert and set to overlay mode.
5) Gaussian blur that. Play with the amount and with the overall opacity of the layer. Larger blur values will probably be needed (like 50+pixels).
6) when it looks pretty even that image back into the L-channel of the LAB file, then reconvert to RGB.
7) Dupe that fixed image back on top of your original and set the mode to Luminosity. May need a few tweaks there too.
EDIT- forgot to mention: sometimes you need to repeat steps 4-5 more than once. Just blur the overlay layer and if you still see some gradation in light merge it down, dupe that layer, invert and set to overlay, and then do it again. I rarely need to do it more than twice.
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