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 [email protected] sent from i4est -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
