[pkscout]

Thanks for the quick reply. I just added the log link to my previous post.

So what should be the correct behavior: slideshow starts with low contrast (when foreground elements are still present), then should become bright and high contrast after the foreground is gone?

Also, what is the purpose of the "background diffusion" setting in your mod? I don't see any changes when I set it to different values.

Here is an idea - is it possible to make the skin AS using to post pictures the most foreground one? Then all potential foreground image issues will be dealt with.

EDIT: I found the following lines from my log file suspicious or potentially relevant (they all come from the log section when AS slideshow has already started):

2020-01-04 16:10:04.754 T:7074   ERROR: EXCEPTION: Invalid setting type
2020-01-04 16:10:04.757 T:7074   DEBUG: [Artist Slideshow] ArtistSlideshow.Image set to /storage/emulated/0/Android/data/org.xbmc.kodi/files/.kodi/addons/script.artistslideshow/resources/images/black-hd.png
2020-01-04 16:10:04.795 T:7049   DEBUG: ffmpeg[7F781970]: [swscaler] No accelerated colorspace conversion found from yuv420p to bgra.
2020-01-04 16:10:06.713 T:7047   DEBUG: Caching image 'smb://192.168.0.2/E/PHOTOS-LILY/IMG_9541.jpg' to '3/3be9a0a3.jpg':
2020-01-04 16:10:06.849 T:7047   DEBUG: cached image 'special://masterprofile/Thumbnails/3/3be9a0a3.jpg' size 727x720
2020-01-04 16:10:14.543 T:7015   DEBUG: ------ Window Deinit (Custom_1109_TopBarOverlay.xml) ------

The ERROR message is important I think - I wonder what's causing it?

Then the image black-hd.png - what does it do? Can it be masking my images somehow?

Not sure why I get the message "colorspace conversion found from yuv420p to bgra" for each of my images. All my images regular RGB jpeg files.

And then again this weird downscaling report, for each of my images being cached (scaled down to 720p).

That black image is set during slideshow transition and removed as soon as anything is added to the slideshow.  So there is no way I can think of it would be interfering with your display.

Again, what is done with the image is completely dependent on the skin.  Whatever remaining issue you have is either skin related or Android related.  I have never, in all my years using Kodi, seen the cache being down scaled, but then again I've never used Android.  I know that neither Estuary nor my Estuary mod scale or load low contrast images first.  I understand that you would like help trying to resolve your issue, and what I'm trying to tell you is that you need to go to the right place to try and figure this out. Because I've never been able to duplicate your issue on any other platform, you might consider instead posting something to the Android sub-forum:

https://forum.kodi.tv/forumdisplay.php?fid=164

Alternatively you could try posting in the Estuary skin sub-forum:

https://forum.kodi.tv/forumdisplay.php?fid=260

Just please don't post the same problem in both places.  Pick one and see if anyone can help you.  If they can't you can try the other sub-forum.