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Author Topic: Zipped Tif files loose quality?  (Read 3345 times)

bjornaagedk

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Zipped Tif files loose quality?
« on: June 16, 2006, 04:40:49 pm »

Does anyone know if image quality is exact the same of a zipped TIF vs. a non-zipped ditto?
Is it a lossless compression like LZW ?
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Schewe

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Zipped Tif files loose quality?
« Reply #1 on: June 16, 2006, 04:46:32 pm »

Lossless...
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bjornaagedk

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Zipped Tif files loose quality?
« Reply #2 on: June 16, 2006, 04:53:24 pm »

Quote
Lossless...
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By "Lossless..." - do you mean that LZW-cpmpression isn't lossless??

I am asking because my customer wants me to zip my tif files before transmitting via FTP.
I never use any compression of tif because in my eyes any compression means throwing out image data from the original file.
But what is the fact here... am I right that any compression method affect image quality and has to be avoided for maximum possible image quality?
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DarkPenguin

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Zipped Tif files loose quality?
« Reply #3 on: June 16, 2006, 05:05:53 pm »

It is lossless compression.  You lose nothing other than file size.
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