https://bugzilla.wikimedia.org/show_bug.cgi?id=19153
--- Comment #7 from Ilmari Karonen <[email protected]> 2009-08-26 19:42:39 UTC --- AFAIK, neither PNG nor (ordinary) TIFF can store undemosaiced, high-bit-depth raw sensor data. That's the point of using the DNG format on Commons: saving as much of the raw data from the camera as possible, so that anyone who wants to create modified versions can work straight from the original rather than from a processed, quantized and (for JPEG) lossily compressed version. If I convert my raw photos to PNG or TIFF, I lose a lot of dynamic range as well as the ability to apply a better demosaicing algorithm later. Sure, DNG also has its problems, and converting other raw formats to it can be lossy, but it's nowhere near as lossy as converting to PNG, TIFF or JPEG. (Oh, and AIUI, DNG does allow specifying a color profile; the gripe the Bibble developers seem to have with DNG is that the color model used for embedded profiles in DNG isn't as advanced as the one programs like Bibble use for their built-in camera profiles, meaning that DNG images rendered using the embedded profile might not look exactly identical to the original camera raw files rendered using Bibble's camera-specific profile. Seems like a somewhat silly issue to me.) -- Configure bugmail: https://bugzilla.wikimedia.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. You are on the CC list for the bug. _______________________________________________ Wikibugs-l mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/wikibugs-l
