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TEcHNOpls

Strange halo when exporting

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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..."

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Ok, I will send this for both bug reports. Please send me a upload link.


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

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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..."

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Hey TEcHNOpls,

Unfortunately not, no. If I zoom in on the same area I can't see anything like what is pictured in your screenshot :( Do you know which layer it is on? 

This is a screenshot with all layers on (apart from the top Curves Adjustment):

Screenshot 2019-03-18 08.53.24.jpg

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@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..."

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12 hours ago, TEcHNOpls said:

Try exporting that image, esp. with Lanczos non-separate

That'll do it.

No idea what's happening with that so I'll pop it straight to dev. Thanks! 

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Work around: move your high pass layer outside of groups.


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

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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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