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[OM] Re: scratch line on digital image

Subject: [OM] Re: scratch line on digital image
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Wed, 13 Dec 2006 16:30:26 -0500
Why would you use JPEG for display and the uncompressed TIFF for print 
when any display device technology has a far greater dynamic range than 
any print technology.  Doesn't make sense to me.

Chuck Norcutt

Philip Pemberton wrote:


> 
> Basically, JPEG chops an image into 8x8 pixel blocks (or 16x16 if you have 
> the 
> compression turned WAY up), then processes those blocks, repeating previous 
> blocks as necessary to save space. At some compression levels, those 8x8 
> blocks are visible - that's JPEG blocking.
> 
> ... Which is why you save the RAWs, convert to JPEG for display, and print 
> from uncompressed TIFFs. Or at least that's what I do. Maybe I'm just a 
> little 
> obsessive about quality :)
> 


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