Convertion of 12 bits PGM images to JPEG2000 and back

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
magick
Site Admin
Posts: 11064
Joined: 2003-05-31T11:32:55-07:00

Post by magick »

A patch is needed to the JP2 coder to support 12-bit grayscale. It is on our list of things to do.
Top
User avatar
magick
Site Admin
Posts: 11064
Joined: 2003-05-31T11:32:55-07:00

Post by magick »

We'll have more information when we get a chance to investigate this problem. ImageMagick supports 12-bit, 14-bit, 10-bit, etc. pixel depths we just need to ensure Jasper does.
Top
User avatar
glennrp
Posts: 1147
Joined: 2006-04-01T08:16:32-07:00
Location: Maryland 39.26.30N 76.16.01W

Post by glennrp »

Have you considered using 16-bit grayscale PNG? The extra 4 bits
are highly compressible in PNG and don't waste much space.
Top
Post Reply

Return to “Users”