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

Tue, 26 August 2003 07:52

xje4e
Messages: 18
Registered: February 2002

Junior Member

Hi, there,

For a gray-scale image, I haven't found a good way to store it yet. It
seems that there is no way to store gray-scale images in IDL
efficiently. If so, that will be too bad, because all the satellite
images we processed are very large and occupy a lot of space.

I tried 'tiff' format with Packbits compression, but it does not help
for gray-scale image. Sometimes the file size of the compressed image
is even larger than the original raw data!!!

Can anyone give me some hint? Thank you very much!

Regards,

Julia

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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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