[Jwing]

I have been reading manga on kindle. Processing the files with KCC.

In the last KOreader User Guide, there are steps for dither images using ImageMagick. Although, there is a native dithering function on koreader.

My question is which one is better? Native or Imagemagick? Or should I use both (process the image on computer and toggle on dithering on KOreader

Another question: jpg or png? Which is better on koreader (on kindle)?

Thank you