In a similar way .. I only keep RAW data with its accompanying sidecar file on my hard drive.
When I send material out to the web it is as a resized JPG. When I print an image it is from a full sized TIFF. I then destroy my 'working' copies of any JPGs and TIFFs, they can always be recreated from the RAW data. David On 13-10-19 06:42 PM, Marie-Noëlle Augendre wrote: > The main question is what you're going to do with these pictures: > - if they will be published on the web, you need only resized and > compressed JPEG, and you won't need more pixels than your users can display > on their screen > - if it is for printing, you'll need the highest quality you can produce, > with 300 dpi for small/middle formats, and a bit less for big prints. > > Disk spaces is less and less a problem as their price continue to go down. > > As for myself, I don't treat every picture; but those I 'develop' are > exported from DT in TIFF - and that is often 40 or 50 Mb given the size of > my camera; and it is only when I decide how I will use them that I convert > them in JPEG or whatever, and I usually don't keep these files after they > have been published or printed. > So RAW is my original picture, and TIFF is always the master file from > which I produce anything else. > > My 0.02. > Marie-Noëlle > > 2013/10/19 Andreas Kahl <[email protected]> > >> That's a very useful information - perhaps the problem ist on the side of >> Viewer-Applications. Has anyone else a recommendation what works? >> >> About using PNG or TIFF as an alternative: They result in larger image >> files than the original RAW. >> .RW2: 20MB >> .PNG: 25MB >> .TIF: 28MB >> .JP2: 5.7MB >> .JPG: 4.3MB >> The JPEGs are converted with 97% Quality in Darktable. For TIF and PNG I >> used the 16bit-Variant. Perhaps harddisk-sizes are going to grow faster >> than my image pool and in the end I'll stop converting at all and just keep >> the RAWs. During my research about the JPEG2000, I found an interesting >> text - in German - about file formats here: >> http://digicam-experts.de/wissen/1 >> >> I also got very good results for tone mapping (aka HDR) single exposures. >> But my Software, HDRtist for Mac, supports only low resolutions in the free >> version; additionally I am not sure whether it ignores the .XMPs generated >> by Darktable. For HDR I think I need a bit more of practicing. One major >> downside is that I have no solutions for batch converting Darktable + >> HDR-processing up to now. >> >> Andreas >> >> >> >> > > > > ------------------------------------------------------------------------------ > October Webinars: Code for Performance > Free Intel webinars can help you accelerate application performance. > Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from > the latest Intel processors and coprocessors. See abstracts and register > > http://pubads.g.doubleclick.net/gampad/clk?id=60135031&iu=/4140/ostg.clktrk > > > _______________________________________________ > Darktable-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/darktable-users ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60135031&iu=/4140/ostg.clktrk _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
