2004.09.02 16:36 "RE: [Tiff] 16bit compressed colormaps", by Steve Eddins

Are 16bit images with colormaps actually common? I have never >> supported them in my software and haven't encountered any in my >> various projects. Who has run into them? Is this an area we should >> be worried about handling efficiently?

FWIW, I've never seen one.

I expect that you will be able to see one today (CPU is crunching to generate the huge colormap). In the mean time, I am interested to know who is able to load and view the *beautiful* 4096 color (12-bits per sample) colormapped TIFF file I have made available at:

ftp://ftp.graphicsmagick.org/pub/outgoing/colormapped-12-bit.tiff

The current GraphicsMagick 1.2 development snapshot is able to read and write this file just fine.

MATLAB can read and display it. On export, though, MATLAB would write it using 16 bits per sample.

Steve Eddins
Development Manager, Image Processing Group
The MathWorks, Inc.