Re: [PLUG] which image transfer format?

[Paul <paul@dpagin.net>]

I know the file size increases rapidly above 75% quality.  When I go to 
save a particular image at 75% JPEG quality the estimated size is 67.7k. 
At 100% quality it becomes 241.3k.  That's a 256% increase in file size.

Saving as a TIF without compression yields a file size of roughly 1.44M. 
(TIF can also use JPEG compression.)  This represents a lossless, 
portable format.

So, my answer is that I don't know.  8^)  A JPEG at 100% quality must be 
better than it is at 75%, but I don't know if it's lossless.

Going in the opposite direction I can see a rapid drop in visual quality 
below 75% quality.


Jeff Abrahamson wrote:

> Is there loss if one saves at the least lossy version (what is often
> called 100% quality)?

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