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Posted

Hi,

 

when exporting an image I made I get some strange artifacts. Relevant section here:

image.png.80694315b9a0e1885a65c881cac5612f.png

 

That's 16bpp image exported to 8bpp png, different methods of resizing.
Exported with bicubic:

image.png.de400337cc672626a3eeef774841d602.png

 

Exported with Lanczos sep:

image.png.e8e8048a5c2768f40351f7f6573813d8.png

 

Exported with Lanczos non-sep:

image.png.b62738ebb19f04fdb4cd7986a094886f.png

 

Can provide you with the image if need be.

"I'm a lumberjack and I'm OK, I sleep all night, and I work all day..."

  • Staff
Posted

Possibly related to this thread:
https://forum.affinity.serif.com/index.php?/topic/80959-blocky-artifacts-from-some-adjustment-layers/&tab=comments#comment-425791

 

Is the halo still present when you turn off the High Pass Live Filter Layer? If it is, would you mind sending me the document, not just the image?

Posted

Hi, sorry, I was at work and missed that link.

I tested w/o High Pass and you can still see the halo on that layer in export.

image.png.bd967ab9069fd937984ea07634cc1f2b.png

I vaguely remember that similar issue was visible in another image I had a long time ago.

 

File uploaded, it for this here, and this linked bug report:

 

 

"I'm a lumberjack and I'm OK, I sleep all night, and I work all day..."

Posted

@Chris B: Try exporting that image, esp. with Lanczos non-separate. The issue should be visible then. Also scale down (in my example, it's 2048px on longer edge) and into png file.

Edit: attached file has my export preset in it (in export persona), as I cannot send you the preset itself (no export/save option).

exports.afphoto

"I'm a lumberjack and I'm OK, I sleep all night, and I work all day..."

  • 4 weeks later...
  • 2 months later...
Posted

Still present in .414. When exporting an image with many pixel layers I can get halos where one layer covers the other.

 

Notice all the white halos, these are the spots I 'fixed' with one of the healing tools. (Exported image, 400% zoom)

image.png.1d74a9884583b0716f9f97f8ad721221.png

"I'm a lumberjack and I'm OK, I sleep all night, and I work all day..."

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