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Re: what is an efficient lossless compression way to store a gray-scale image [message #36266 is a reply to message #36121]

Tue, 26 August 2003 10:23

Jonathan Boswell
Messages: 4
Registered: February 2001

Junior Member

Julia wrote:
> seems that there is no way to store gray-scale images in IDL
> efficiently...

I believe GIF is lossless if you have fewer than 256 "colors". What version of
IDL do you have? There are licensing issues pertaining to the LZW compression
used by the GIF standard, and recent versions of IDL will not run WRITE_GIF w/o
additional expense.

- JB

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[Message index]

		what is an efficient lossless compression way to store a gray-scale image By: xje4e on Tue, 26 August 2003 07:52
		Re: what is an efficient lossless compression way to store a gray-scale image By: George N. White III on Wed, 27 August 2003 15:52
		Re: what is an efficient lossless compression way to store a gray-scale image By: Liam E. Gumley on Tue, 26 August 2003 14:24
		Re: what is an efficient lossless compression way to store a gray-scale image By: R.G. Stockwell on Tue, 26 August 2003 10:55
		Re: what is an efficient lossless compression way to store a gray-scale image By: xje4e on Tue, 26 August 2003 10:23
		Re: what is an efficient lossless compression way to store a gray-scale image By: Jonathan Boswell on Tue, 26 August 2003 10:23
		Re: what is an efficient lossless compression way to store a gray-scale image By: R.G. Stockwell on Tue, 26 August 2003 09:42

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