XnView Software

I switched some settings in export dialog for "JPEG" and went to the "GIF" format tab. Then I saw a wrong preview image.

Here are the steps I did to get the preview image colour errors:

1. Load a picture in xvniewmp
2. File => Export ...
3. "JPEG" tab (is the default)
4. Switch colour mode: 16M to greyscale
5. Choose "GIF" tab

The colour mode is set to 256 colours, but the image colours are very dark and wrong.

Have you tried different Dithering settings, and do you have a Transparency setting, which probably isn't appropriate? Have you tried a different image?

No problem on an image I tested using 0.89, except for some slight banding artefacts with Dithering set to Adaptive, I can't test Transparency settings as I only have 0.89 0n my laptop.

Otherwise possibly a bug in the new version.

I opened other pictures and get the same colour errors and a dark preview.
If I switch back from GIF tab to JPEG tab, the preview image will be correct.

I think switching from JPEG tab with colour mode "greyscale" to GIF tab with default colour mode "256" will produce a preview image with unknown default settings which do not match with the GIF tab settings.

Transparency is not used. Other dithering modes Floyed-Steinberg, etc. did not help.

Here is another example:

right will be fixed for beta 2

This problem is supposed to be fixed in XnView MP 0.91 beta 2. Please check and confirm the bug fix here.

This problem is solved with 0.91 beta #2. Thank you!