On Feb 2, 2012, at 11:55 AM, Miserere wrote:
> 
> 
> When I first started using Photoshop in 2005 I took one of my photos
> with plenty of detail and colours and saved it as a JPEG in all
> quality settings up to 12. I then pixel-peeped the hell out of them
> and came to the conclusion that the differences between 10 and 12 were
> as good as invisible but the file sizes were VERY different. The
> difference between 8 and 10 was small, but visible to me at 100%. That
> was the last time (and first) I performed this test and since then
> have saved JPEGs at quality level 9 or 10, and sleept soundly at
> night.

Ahh, thanks.  How it looks really is the critical factor, isn't it?

I expect that there are critical algorithmic differences at certain points, I 
wonder how 1-12 correspond to 0-100%

I also suspect that a lot of the differences between 9-12 (in your example) 
involve data that could be pulled out in post processing, shadow and highlight 
detail that aren't so visible at 8bits.

--
Larry Colen l...@red4est.com sent from i4est





-- 
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.

Reply via email to