Search found 4 matches

by jxl
Tue Oct 12, 2021 6:05 am
Forum: XnConvert
Topic: 32bit export?
Replies: 1
Views: 3481

32bit export?

Currently, everything seems to be exported at 8bit, Even if you import 32bit OpenEXR.
PS: I export it to the TIFF format that supports 32bit, I get a 8bit.
by jxl
Fri Oct 08, 2021 1:35 pm
Forum: XnConvert
Topic: !! Bug 2 Error !! Invalid Chroma Sampling
Replies: 3
Views: 4091

Re: !! Bug 2 Error !! Invalid Chroma Sampling


what do you means? Compression (effort) with 0 will create larger file


I mean: in jpeg XL. Set the quality to 9. Get the smallest file at this point. Set the quality to 8. Get a larger file at this point. Much larger than 9. The quality 0 to 8 file sizes are the same. file MD5 is the same for 0 ...
by jxl
Fri Oct 08, 2021 4:24 am
Forum: XnConvert
Topic: !! Bug 2 Error !! Invalid Chroma Sampling
Replies: 3
Views: 4091

!! Bug 2 Error !! Invalid Chroma Sampling

In the AVIF format. 444 422 420. The file size after the conversion is same. The converted MD5 is same. The picture used to test is 444 png.
AVIF.png
Thanks!

jpeg XL also has an error.
quality below 9. Bytes will be larger. You can test with 012345678 quality levels. They are all much larger than ...
by jxl
Fri Oct 08, 2021 2:09 am
Forum: XnConvert
Topic: Upstream Gamma correction.
Replies: 0
Views: 3795

Upstream Gamma correction.

09853867.png
09853867.png (1.3 KiB) Viewed 3727 times
I noticed that the current gamma correction was applied after scaling. This exposes the dark details of the picture. Applying gamma correction before scaling the picture can fix this bug.