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Colour banding in exported JPG

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6 comments

  • Peter Gude

    I have this problem too. At 100% jpg quality it is less pronounced. A LR export with the same settings has much better IQ. It’s the banding in sky colors but also resolution or clarity is much less from a ON1 export

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  • Brian Lawson Community moderator

    Have you used the Soft Proofing feature to check for color shifts in different color spaces before you do the export? Go to View > Soft Proofing and turn it on. Then you can choose different colorspaces from the View > Profiles sub-menu. The Simulate Paper and Ink option will highlight out of gamut colors similar to the Highlights & Shadows indicators with the histogram.

    If you see any disagreeable color shifts you can use any of the color management filters to correct for them before exporting. You can create versions so the color corrections are specific to online display and sRGB or printing with Adobe RGB or ProPhoto depending upon your printer.

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  • Chris Roberts

    Rick, the article did not really help.

    Brian, I did not see any colour shifts using the soft proof.  If I did print, I did not get banding on the prints, but this is about exported JPEG's for display.  Even on my computer, the exported JPEG is showing banding before it is posted.

    see top left quarter 

     

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  • David Kick

    Chris,  I think the main issue here is your raw file is probably 12, 14 or 16 bit file. The color range these files can support is much greater than what an 8 bit jpg file can support. I think with a smooth color change as in your photo ( which is very nice by the way ) might always show banding when converted to JPG from a Raw file. For a photo like this you might want to try the Png or Tif formats if your display platform supports it. I'm pretty sure the Tif format will keep the original bit level of your raw file and you shouldn't see this banding. Not sure about PNG but I think it will.

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  • Chris Roberts

    David your reasons makes sense.  PNG does still show the banding, but somehow is missing the metadata.  Will try a few more combinations to see if there is any magic left.  This photo may have been extreme case for the graduated tone across the entire image to expect a good conversion.  

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