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lossless vs. uncompressed - what are you doing?

slothead

Frederick, US
1906 posts

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"RE: lossless vs. uncompressed - what are you doing?"

slothead Gold Member Donor Ribbon awarded for his generous support to the Fundraising Campaign 2014 Nikonian since 12th Aug 2009
Mon 30-Sep-13 02:58 PM

I also use lossless compressed and I understand that its basis is for compression of identical pixels (but don't quote me on this). For instance, if you have a number of identical pixels (say exact blue sky data, or end-limit white, or end-limit black -- not that any pixel exact), those data will be mapped/compressed as single data values. Thus while the individual bits may disappear, they will be re-expanded (when uncompressed) exactly as originally recorded. This is not the case with JPG or any other compressed file type.

Tom
http://tjmanson.smugmug.com
D810, D750, N1-J5, N1-V3 (and a few other cameras) and a BIG handful of lenses.

This is a hot, active topic! lossless vs. uncompressed - what are you doing? [View all] , sevtcard Silver Member , Sun 15-Sep-13 06:32 PM
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