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To: Henry J Costanzo who wrote (53204)5/23/2006 11:51:17 AM
From: Done, gone.  Respond to of 213183
 
OT: The "Quality" setting determines the compression. Compression determines how much information -- pixel to pixel or image dot to image dot -- is deemed of "very similar color" and can therefore be displayed as "same color". The lesser the "Quality," the more pixels are designated as the "same," the smaller the file size.

Here is an example with lowering "Quality" from left to right:



Image from and much more at: en.wikipedia.org


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