Bug 374958 - Problems with 16 and 32 bit float .tiff export
Summary: Problems with 16 and 32 bit float .tiff export
Status: RESOLVED NOT A BUG
Alias: None
Product: krita
Classification: Applications
Component: File formats (show other bugs)
Version: 3.1.1
Platform: Other Microsoft Windows
: NOR normal
Target Milestone: ---
Assignee: Krita Bugs
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-01-12 13:37 UTC by Neviril
Modified: 2017-04-21 13:00 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:

Attachments
Sample image (721.54 KB, application/x-krita)
2017-01-12 13:37 UTC, Neviril 		Details
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Description Neviril 2017-01-12 13:37:18 UTC 
Created attachment 103370 [details]
Sample image

OS: Windows 10 64bit

Issue: Exporting a .kra drawing to .tiff file appears to fail to produce a usable result if the color space has been set to be 16 or 32 bit float. The output file is a very faint transparent image. On the other hand, 8 or 16 bit integer image .tiff export appears to work correctly.

It's worth noting that re-opening the same exported image in Krita does not seem to show any issue.

The result fails with:
- IrfanView 4.42 (a popular Windows image viewer)
- GIMP 2.8.14 (the file will be automatically converted to 8bpc upon importing)
- XnView MP 0.83 (16 bit float fails but oddly .tiff files exported in 32 bit float seem to work fine)
Comment 1 Dmitry Kazakov 2017-04-21 13:00:01 UTC 
I have just checked f16, f32 and i16 files on Windows. Standard Windows Photo Viewer, and Photoshop opens these files correctly. So I think that the problem is not in files, but in the software. Please report this bug to the developers of IfrfanView, Gimp and XnView and attach the failing documents to them