XnView Software

Hello,

I cannot explain the technical term for this 'indexed' color distortion but I have indeed noticed this same distortion before with other super high-resolution images, particular with high-res images that have been sourced from a scanner.

Right, so the photo preview display's with the evident distortion in both XnView MP and XYplorer's 'preview' as seen here:



Ahhh But I cannot see any of the same distortion whatsoever when I view with Windows 7's native image viewer:


So issue must be explainable to the least if not fixable immediately...Or perhaps there is a setting in XnView MP that I have overlooked no/yes?


Here is the same Hi-res photo image seen above in the screenshots for anyone to test
(5.7 MB):
http://www.megaupload.com/?d=KUWEHCR0
Or
http://www.sendspace.com/file/a9frq3

Thank you for reading.

XnView MP 0.39 | windows 7 sp1 x86 | program settings = xnview.ini

What you see are Moiré pattern artifacts. The picture was obviously scanned from a print magazine without activated descreen filter.

Setting High zoom quality in Tools » Settings... » View to Reduce & Enlarge should smooth things out.

• Scanning Basics 101
  • Descreen
  • Manual Descreen methods
• XnView Forum
  • Effects:Color noise reduction
  • Removing a Line Screen

Thank you Xntriq for this information.

Yes I have noticed this with many of my scanned magazines/newpapers but have never heard of this "Descreen" information to look out for.

So this topic is not a bug and should to another sub-forum...