XnView Software

win10x64 xnviewvmp 1.5.3.
jpeg xl is panned at a scale of 100% or higher with a much slower refresh rate than on jpeg and avif formats. The frame rate is lower. At a scale smaller than 100% there is no problem.

sorry but i don't understand your problem...

xnview wrote: Sun Aug 20, 2023 8:07 am sorry but i don't understand your problem...

Open a large file (higher resolution than your display) JPEG XL in Viewer mode, turn on the image zoom to 100% or more, try moving it with the mouse (by default in xnview it seems to be the right mouse button), when moving the picture, the picture will jerk a lot. When viewing JPEG and AVIF images, there is no such jerk movement. Interestingly, there is jerk even at 100% scaling, although no image resizing algorithms are applied. There's something wrong here.

you means that with same image size, you have issue only on jpegxl file compared to a jpeg file?

Yes, only jpeg xl panning with the mouse is jerky, and panning of jpeg and avif is smooth.

xmozg wrote: Mon Aug 21, 2023 4:23 pm Yes, only jpeg xl panning with the mouse is jerky, and panning of jpeg and avif is smooth.

Really strange, when image is loaded, jxl or jpeg doesn't change the image display.

I followed your recommendation from another topic to disable ICC and it worked. Jerks when panning jpeg xl images disappeared. This enabling of ICC slowed down the panning of the picture that I could not assume. Also, I did not assume that when encoding a jpeg image into jpeg xl, both xnviewmp and the official tool cjxl.exe for some reason add an ICC profile to the image, which was not there before! Because of this, exactly the same image, but in jpeg xl format, began to move in jerks.

yes ICC can slow down the display if image is big