Chris,
I tried this and I get colors as an unsigned byte 3 vector. The
colors are listed as [00 00 00] and [ff ff ff]. How are you getting
them to convert to real?
If I turn the colortype to float in ReadImage, then it does convert
the correctly to range from 0 0 0 to 1 1 1.
Are you doing something else?
David
I just noticed something odd that looks wrong.
I have a GIF with only black and white colors in it. Because I don't have
the right working version of openDX and Imagemagick installed, I convert
the GIF to TIF with xv (save, no LZW) then import with ReadImage. I inspect
with Print("rD") and see that the "color map" ranges from [0,0,0] to
[0.99609375, 0.99609375, 0.9960375]. But in xv Color Editor and with the
eyedropper one can prove that the image has only [00,00,00] and [ff,ff,ff].
It seems to me that pure white should be [ff,ff,ff] and in DX should be
[1,1,1].
255/256 = .99609375 exactly which implies that the routine that converts a
TIF colormap to a DX color map is not doing quite the right thing.
What do you think?
Chris Pelkie
Scientific Visualization Producer
Cornell Theory Center
618 Rhodes Hall
Cornell University
Ithaca, NY 14853-3801
[EMAIL PROTECTED]
607-254-8794
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.............................................................................
David L. Thompson The University of Montana
mailto:[EMAIL PROTECTED] Computer Science Department
http://www.cs.umt.edu/u/dthompsn Missoula, MT 59812
Work Phone : (406)257-8530
