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Re: gamma correction [message #31222]

Fri, 28 June 2002 07:29

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Craig Markwardt (craigmnet@cow.physics.wisc.edu) writes:

> What are you talking about here David?
>
> When I use DEVICE, DECOMPOSED=0, I can use the 256 entry color table.
> You taught me that incantation! :-)

OK, here is the test. Run this in a fresh IDL session.

;*********************************************************** *
PRO TEST

; Get 24-bit JPEG image.

file = FilePath('rose.jpg', SubDir=['examples', 'data'])
Read_JPEG, file, rose

; Display it by running through ugly color table.

LOADCT, 5
DEVICE, TRUE_COLOR=24, DECOMPOSED=0
TV, rose, TRUE=1
END
;*********************************************************** *

Does your display have a beautiful rose in it, or
does it look, well, strange?

Please tell us what version of IDL you are using, too.

Cheers,

David

--
David W. Fanning, Ph.D.
Fanning Software Consulting, Inc.
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

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[Message index]

		Re: gamma correction By: David Fanning on Fri, 28 June 2002 07:29
		Re: gamma correction By: Craig Markwardt on Fri, 28 June 2002 06:33
		Re: gamma correction By: Dick Jackson on Thu, 27 June 2002 21:42
		Re: gamma correction By: Med Bennett on Thu, 27 June 2002 20:53
		Re: gamma correction By: David Fanning on Thu, 27 June 2002 16:57
		Re: gamma correction By: Dick Jackson on Thu, 27 June 2002 16:14
		Re: gamma correction By: David Fanning on Thu, 27 June 2002 13:23
		Re: gamma correction By: btupper on Thu, 27 June 2002 12:34
		Re: gamma correction By: Rick Towler on Thu, 27 June 2002 11:06
		Re: gamma correction By: David Fanning on Wed, 26 June 2002 15:22
		Re: gamma correction By: David Fanning on Wed, 26 June 2002 15:20
		Re: gamma correction By: Dick Jackson on Wed, 26 June 2002 14:17
		Re: gamma correction By: David Fanning on Wed, 26 June 2002 12:11
		Re: gamma correction By: Med Bennett on Wed, 26 June 2002 11:27
		Re: gamma correction By: David Fanning on Wed, 26 June 2002 07:44
		Re: gamma correction By: Craig Markwardt on Fri, 28 June 2002 14:01

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