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I have some problems here. I have a CS6 (32bit) installed on win 8.1 (64bits). I use the filter file on the first post. When I enable "GPU" option in the greycstoration, for some files, the filter works improperly, see my psd files:

http://www.mediafire.com/download/fs1wprqrk8th9t0/scanraw.zip

002.psd is before applying the greycstoration filter, 002_1.psd is after.

Everything is fine if I disable "GPU" option, but that's really slow since I have to run a batch mode in filtering pics. I am using a notebook with Intel HD Graphics 4400 these days since I am often out of town. My desktop at home is O.K. with GPU enabled.

=====update===
it's possible that the original psd file is incompatible with cs6 or something in cs6. I convert all .bmp to .psd by xnconvert, those files always have above problems. It seems if I use cs6 to save .bmp to .psd in a batch mode, the above problem won't appear to new saved .psd files. I will test in future.