Quote:
Originally Posted by jase
Some may not be aware, but photoshop has specific resampling algorithms for upscaling and downscaling data;
Bicubic (best for smooth gradients) <--- default setting
Bicubic Smoother (best for englargement) <--- upscale
Bicubic Sharper (best for reduction) <--- downscale
Good information here where Bicubic sharper is used for both up and down scaling.
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I found CS6 to be even worse with downsizing as it clips the histogram. The best way to downsize that worked for me is in CCD Stack by doing a pixel math each step before reducing res.