Thanks for the info, a lot of which I didn't know. Still, as most of my work is "print it and forget it", conversion seems like an extra and unnecessary step. Something to think about for stuff that needs archiving.
On 02/03/2014 07:06 AM, Moritz Moeller wrote: > On 3/2/14 3:13 pm, Bruce Albert wrote: >> Ditto. Absolute zero interest in dng and adobe. > > Your choice, ofc. > But it sounds a tad like animosity based on ignorance. ;) > > In essence it seem So you rather support your camera manufacturer's > obscure/proprietary RAW format that is likely not even open? > See https://en.wikipedia.org/wiki/Raw_image_format#Drawbacks > >> I could use dcraw to convert to tiff (as I do with Fuji RAF) if it comes to >> it. >> But it does appear that it is fixed in git. > > Who developed TIFF? Aldous. Which is now Adobe. Ooops. :D > > DNG uses TIFF/EP. Or rather: it is an extension of TIFF that offers the > ability to store sensor data. > > Using plain TIFF will not preserve the original sensor data. > I.e. you'll loose you the ability to de-Bayer with improved technology > at a later stage because TIFF has no official support for a subformat > that stores raw Bayer data. > > That's precisely one of the reasons Adobe did extend TIFF and gave it a > new fancy name: DNG. > > On that note: not only TIFF itself, but also most interesting TIFF > extensions have been developed by commercial entities or by people who > had backing from a commercial entity (see > http://fileformats.archiveteam.org/wiki/TIFF). > > Furthermore, there is, unfortunately, no open, non-commercially > developed image file format to store photographic data with acceptable > accuracy & metadata support, for the target audience of DT, that ever > succeeded. *Open* format options are: > > - DNG (Adobe) > - TIFF (Aldous/Adobe) > - OpenEXR (Industrial Light & Magic) > - Cineon (Kodak) > - FITS (NASA, more or less) > > Of all these, only DNG and FITS support for storing undemosaiced data. > But the target application for FITSs are astrophotography. I.e. unlike > DNG, it is quite specialized. > > So I totally don't get why people are so negative towards DNG. > > Just because the entity who developed this TIFF extension happens to be > Adobe. DNG is still completely open, Adobe has even offered to put the > further development and governing of this standard under an independent > committee at any time. > > Anyone can implement a DNG reader or writer w/o having to pay a penny to > them. > > .mm > ------------------------------------------------------------------------------ Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121051231&iu=/4140/ostg.clktrk _______________________________________________ darktable-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-devel
