The Phoenix lander takes a number of bland shots of the Mars sky & I was wondering if anything could be done with Photoshop to extract more detail from them. Here's one 256x256 image taken at about 50 degree elevation:
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Image->Adjustments->Levels:
Filters->Noise->Median (radius 5):
Image->Adjustments->Equalize:
Filter->Stylize->Find Edges and Image->Adjusments->Equalize:
Load new color table:
OK, Jackson Pollack it isn't.