Page 2 of 2
Re: posterize TIFF-files: how to prevent change of color-depth?
Posted: 2018-02-11T11:59:55-07:00
by fmw42
ImageMagick default depths are defined by the Q level of the install. If using Q16 (default), then if the format supports 16-bit depths, then it will be 16, but if not then you will get 8-bit depths. To enforce 8-bit depths use -depth 8 or use a Q8 install.
Re: posterize TIFF-files: how to prevent change of color-depth?
Posted: 2018-02-11T12:44:07-07:00
by MaxiPunkt
"-depth 8" has no effect in this case
"- type truecolor" is the key to solve the problem
Re: posterize TIFF-files: how to prevent change of color-depth?
Posted: 2018-02-11T14:17:14-07:00
by fmw42
Only since you want 24-bit total color and want more than 256 colors. Otherwise, if less than 256 colors you would get 16-bits total (palette) without -depth 8 and 8-bits total (palette) with -depth 8.