On Jun 2, 2011, at 12:11 AM, Tim Bray wrote: > Check out > http://www.tbray.org/ongoing/When/201x/2011/06/01/-big/RUNE0790.jpg.html > > Look at the green bokeh-fied background and observe the obvious lines > that look like elevation lines on a map, let's call them "bars", as > the green brightness drops off. They ain't there in the .dng, and > after the first cut, I specified 100% JPG quality and they're still > obvious. > > It gets weird... I took a screen grab of the Lightroom window, in > which none of those bars are visible, and saved to a .png file, using > built-in OS X facilities, the PNG created by Preview. Obvious bars! I > put it online at http://www.tbray.org/tmp/screen-grab.png - I thought > .png was uncompressed! > > I'm sure that a silky-smooth jpg of this picture could be created. > But I don't know how.
It's not too bad here. I wonder if you're pulling an Ann and have something set to too few bits. > > -Tim > > -- > 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. -- 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.
