Archived posting to the Leica Users Group, 2006/02/23

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Subject: [Leica] Daily Dose of Spring XI
From: images at InfoAve.Net (Tina Manley)
Date: Thu Feb 23 10:40:28 2006
References: <9b678e0602221659y6619bb2fp9176ecef4b4598ba@mail.gmail.com> <43FD1511.1060904@adrenaline.com> <9b678e0602221852u567a926x9a66976d75ee468e@mail.gmail.com> <43FD2791.9040206@adrenaline.com> <9b678e0602221916j5df65dd9t2b2a286b9f194341@mail.gmail.com> <066141F2-F013-464B-934F-FA3F493B5DA9@ralgo.nl>

At 01:27 PM 2/23/2006, you wrote:
>Don't know if this is teaching grandma .................... , but, I
>heard a tip the other night ............. that each time one modifies
>and saves a JPEG, the image deteriorates (often producing artifacts).
>They, JPEGs, after modification, should be saved under another name
>etc. etc.
>
>B.

Saving under another name won't keep it from deteriorating.  Every 
time you save it as a jpeg (under any name), it compresses again, 
losing information.  If you need to work on a photo it's better to do 
it as a tiff or another lossless format.  Instead of resaving jpegs, 
start all over again with the tiff and make a new jpeg.  That's one 
reason (of many) to use RAW in digital cameras instead of jpegs.

Tina

Tina Manley, ASMP
http://www.tinamanley.com 



Replies: Reply from bruce at ralgo.nl (bruce) ([Leica] Daily Dose of Spring XI)
In reply to: Message from don.dory at gmail.com (Don Dory) ([Leica] Daily Dose of Spring XI)
Message from scott at adrenaline.com (Scott McLoughlin) ([Leica] Daily Dose of Spring XI)
Message from don.dory at gmail.com (Don Dory) ([Leica] Daily Dose of Spring XI)
Message from scott at adrenaline.com (Scott McLoughlin) ([Leica] Daily Dose of Spring XI)
Message from don.dory at gmail.com (Don Dory) ([Leica] Daily Dose of Spring XI)
Message from bruce at ralgo.nl (bruce) ([Leica] Daily Dose of Spring XI)