issue with background graphic showing clear signs of gradient fill "stepping". any suggestions?

part12studiospart12studios Member Posts: 620
edited March 2012 in Working with GS (Mac)
I have a png that looks great.. its a simple blue/white gradient image.. i've tried 8 and 16 bit color.. 16 just shows more "steps" than 8 bit does.. i can't do 32bit png.. is there some compression option that GS is using that i can turn off?

something like this: http://rf-photography.ca/blog/wp-content/uploads/2011/09/8-bit-Gradient.jpg but not quite so extreme, but still very noticeable.

Thanks!
Caleb

Comments

  • JohnPapiomitisJohnPapiomitis Member Posts: 6,256
    edited March 2012
    Add some noise to the image or some transparent pixels and itll get rid of the banding.
  • part12studiospart12studios Member Posts: 620
    ok awesome will try that!
    thanks! :)
  • CloudsClouds Member Posts: 1,599
    @part12studios

    If you add noise your file size will increase (sometimes dramatcally) and, of course, your gradient will not look as smooth.

    To solve the problem simply add a single transparent pixel anywhere on the image, even changing a single pixel to 99% opacity (ie: 1% transparent) will magically smooth out your gradient on iOS** devices.

    (**assuming your target platform is iOS).
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