Reducing image to specified number of colors taken from map

Questions and postings pertaining to the usage of ImageMagick regardless of the interface. This includes the command-line utilities, as well as the C and C++ APIs. Usage questions are like "How do I use ImageMagick to create drop shadows?".
Post Reply
User avatar
Site Admin
Posts: 10918
Joined: 2003-05-31T11:32:55-07:00

Post by magick » 2006-10-20T19:27:20-07:00

The only way to accomplish want you want is to create a map image with only 80 entries and use the -map option.

User avatar
Posts: 8878
Joined: 2004-05-31T19:27:03-07:00
Authentication code: 8675308
Location: Brisbane, Australia

Post by anthony » 2006-10-22T18:45:03-07:00

You can find out all about what -colors and -map does in the new IM Color Quantization section. ... ze/#colors

Especially note the major warning
Quantization does NOT Preserve Colors ... _not_exact

NOTE: GIF images have a 256 color limit of only Q8 colors, and can make ONE of those the fully transparent color.
Anthony Thyssen -- Webmaster for ImageMagick Example Pages

Post Reply