XnView Software

XnViewMP 1.7.2 64bit
Windows11 (23H2), display resolution 3840x2160, win scaling 150%

Instruments - effect scaling
effect of some tools is too strong way before it reaches 100%, eg
Saturation
at 50% effect is already excessive, in other apps it does not reach such extreme even at 100% (only in Photoshop at 90%)


Suggestion

• improve instrument 's effect intensity scaling
  for Saturation, Brightness, Contrast, Lightness, etc
  options, eg:
  • decrease max scale by ~x5-10 (ACDSee, FastStone, CaptureOne, DxO)
  • change scaling from linear to parabola (something like Photoshop?)
    as end (extreme) values are rarely required, most adjustments happens in the low-mid range, eg

    

    parabola.png (5.76 KiB) Viewed 3511 times

See issue for current status and some details.

This problem is supposed to be fixed in XnView MP 1.8.1. Please check and confirm the bug fix here.

done in 181

but i find BUG:

i download zip 1.8.1 (windows)
i open xnviewmp: adjust saturation: from 0 to -100 result high saturation.. WRONG my linux 1.8.1
i open xnviewmp: adjust saturation: from 0 to -100 result correct nothing saturation.. CORRECT

yeah, issue with negative values

user0 wrote: Thu Oct 10, 2024 5:03 pm yeah, issue with negative values

this is for windows right? but my linux is correct not bug..

right

This problem is supposed to be fixed in XnView MP 1.8.2. Please check and confirm the bug fix here.

182
issue with negative values fixed

I was going to post a new thread about the uneven sensitivity of contrast, brightness and saturation since a few versions back but I think it's related to this.
It used to be that tiny incrementals made big changes, especially in saturation, but now virtually nothing happens between -30 and +30.
Seems like the gradient of changes could be better adjusted.