Am 02.03.2014 09:51, schrieb Ulrich Pegelow: > Am 02.03.2014 01:59, schrieb Fernan Bolando: >> Hi all >> >> I mistakenly plugged in too many usb devices to a unpowered USB hub while >> copying 16Gig of vacation pictures from an SD card. long story short the sd >> card got corrupted. >> >> >> I recoverred most of it, but after loading the PEF files into darktable and >> zooming I get a low resolution blocky image in lightable. opening them in >> darkroom seems ok. Anyone have a hint on what could be wrong with the files? >> I shoot raw+ and I dont see any obvious problems with jpegs. I also tried >> some of those autorecovery tools and a few of them thinks my PEF files are >> TIFF files. Since darktable are able to open the files in darkroom, I am >> hoping it can give a hint on what is wrong with the headers. >> >> >> regardsfernan >> > > Depending on your darktable configuration you see an embedded thumb - > which is contained in the RAW - when you view the image in lighttable. > When opening the image in the darkroom the full RAW data are used. If > you modify the image and go back to lighttable a new thumbnail is > generated by darktable. > > So most likely the file corruption has affected the embedded thumbs. > Maybe only the ones with lowest resolution are left. > > You may activate the config option "don't use embedded preview > JPEG's..." in gui options. In that case darktable will ignore any > embedded thumbs and always will generate a thumbnail based on default > settings. > > Ulrich >
Forgot to mention two things: the a.m. option only has an effect on newly imported images. If you want to take advantage you will need to delete those images from darktable and re-import them. Secondly, darktable never writes to your RAW files. All what I mentioned is only valid for darktable's internal thumbnail cache. Ulrich ------------------------------------------------------------------------------ Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis & security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
