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It appears in the very light shades, at least on the analogic, that the sample boxes have slight gradients at their boundaries. Am I just seeing things or is th
by mattlutze 13y ago
It appears in the very light shades, at least on the analogic, that the sample boxes have slight gradients at their boundaries. Am I just seeing things or is this accurate?
If it's not just my eyes, it makes difficult the experience of judging the very light shades.
- pmx 13y agoI see it too but I don't think it's really there. I clicked around the area with a colour picker and the values stayed the same across the "gradient" so it must just be an artifact created in our eyes at the boundary.
- blt 13y agoYou are seeing Mach Bands: http://en.wikipedia.org/wiki/Mach_bands http://en.wikipedia.org/wiki/Mach_bands > "The Mach bands effect is due to the spatial high-boost filtering performed by the human visual system on the luminance channel of the image captured by the retina."
- mattlutze 13y agoThat's very cool. I feel like I should have known about that... I suppose, it's a good argument for not using big blocks of slightly different light colors in a design.
- copperheart 13y agoLoad screenshot into Acrobat Pro->zoom(200%+)->Output preview rollover confirms the existence of artifacts that appear to be vertical color bands near the boundaries of light shades.