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How do I avoid banding in Gradients?

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    johnp
    johnp  9136 forum posts United Kingdom
    27 Mar 2008 - 7:01 PM

    I've applied a circular gradient to the background of a portrait and there is very noticeable banding. I understand why - only 256 shades from end to end. I could obviously do better in 16-bit, but when it's converted back to 8-bit to mail to the lab we're back to square 1. And yes, I did have dithering checked.

    I've tried applying gaussian blur but it didn't really help.

    Can anyone offer some advice, please?

    John

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    Big Bri
    Big Bri  1315548 forum posts England
    27 Mar 2008 - 7:45 PM

    apply uniform noise at about 5%

    User_Removed
    27 Mar 2008 - 7:45 PM

    ...or get a better monitor perhaps?

    Big Bri
    Big Bri  1315548 forum posts England
    27 Mar 2008 - 7:49 PM

    Actually, 5% worked in PSP. I just tried in Photoshop and it should be much less, around 1 to 2%.

    Big Bri
    Big Bri  1315548 forum posts England
    27 Mar 2008 - 7:50 PM

    Mike, you can't talk. Look at the banding in your avatar!!!!

    Wink

    User_Removed
    27 Mar 2008 - 8:22 PM

    PMSL!!!

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