OS: Windows 10 64bit
JPEG XL images that were losslessly transcoded from JPEG to JPEG XL are displaying as a black rectangle (sometimes with a gradient of colors in vertical stripes).
Effect: Losslessly transcoded JPEG XL files display as a black rectangle (both thunbnail and . When opening an individual file a message that the image was converted to RGB displays.
To reproduce:
1. Produce a losslessly transcoded JXL file (e.g.
Code: Select all
cjxl.exe xyz.jpg xyz.jxl
2. Open the directory in XnView
3. Open the jxl file
Actual behaviour (bug): Image displays as narrow black rectangle, sometimes with a gradient/rainbow vertical stripe.
Expected behaviour: Thumbnail and image should display correctly.
Additional note: Squoosh was also not able to read these types of files and was recently fixed by adding identification for the jxl container format ( https://github.com/GoogleChromeLabs/squoosh/pull/969 ) and may possibly be the reason for XnView not displaying them correctly as well.