Color - dithering - unify options

[user0]

XnViewMP 1.7.1
Windows11 (23H2), display resolution 3840x2160, dpi scale 150%

Browser\Viewer - color
Dithering options are different for Grayscale and Indexed colors in 'Change color depth...' and 'Export...' dialogs

color_unify_dithering_options.png

Suggestion

• unify Dithering options for Grayscale and Indexed colors in:
  - Change color depth...
  - Export...

• add more Dithering algorithms
  eg
  - Blue noise [1, 2]
  - Atkinson

ref
https://en.wikipedia.org/wiki/Dither
https://surma.dev/things/ditherpunk/
https://blog.maximeheckel.com/posts/the ... ading-web/



Example

• GIMP - Colors > Dither
  other_apps_dither_gimp.png