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No colour with TVRD and WRITE_GIF
| No colour with TVRD and WRITE_GIF [message #12568] |
Tue, 18 August 1998 00:00 |
Paul R Smith
Messages: 8
Registered: January 1996
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Junior Member |
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Hi,
I have a colour plot in a window that I read in with TVRD and then output to
a GIF with WRITE_GIF. The problem is it only comes out in B&W. At first I
thought this was WRITE_GIF's problem, but the correct colour palette is
saved with the image. Then I noticed that the array resulting from TVRD has
only values 0 and 255. In other words all my colour lines have been made
white. I've spent a fair bit of time looking through the colour information
in the manual but no luck.
A couple of points;
I'm using IDL 5.1 on Win95 with the display set to High Color (16 bit)
I normally do a DEVICE,decomposed=0 (in startup.pro) before any plotting or
else I just get shades of red
I also tried changing the backing store to 2 (handled by IDL)
This seems like it should be a pretty simple task but it eludes me.
Thanks for any help,
Paul
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