https://bugs.kde.org/show_bug.cgi?id=491888
--- Comment #5 from Bertil Rolf <b.g.r...@gmail.com> --- Hello. The KDE site has a size restriction of 4MB for attachments. So I managed to select a DNG file that was small. But lots of my DNG files are marked as TIFF, even though they have a size of about 10 MB. I did find some DNG files that were correctly labelled as DNG files by DigiKam. Typically, they are very large, about 20 MB. -- Small DNG files can arise in Adobe Lightroom 5 in two ways: 1) If you import a JPG and then convert it to a DNG, the result will typically be small, little bigger than the original JPG. It has advantages to store all files as DNG, even if they originate as JPG. 2) In Lightroom, you can convert all files to DNG using "Lossy compression". The size is thereby reduced from typically 20-25 MB to 6-10 MB. On a screen, you lose almost no quality, for this would be visible (at most) in a large print. -- Would it help if I bundled some DNG photo files, some falsely marked as TIFF, some correctly marked as DNG? But the package would be very large, so pse tell me how. Best regards Bertil Rolf Baden bei Wien On 2024-08-20 07:58, Maik Qualmann wrote: > https://bugs.kde.org/show_bug.cgi?id=491888 > > --- Comment #4 from Maik Qualmann <metzping...@gmail.com> --- > From what I have debugged so far, LibRaw does not find a DNG image in the > file. > It is logical given the file size, which is much too small for a DNG. The file > contains a thumbnail and 2 preview images. The largest preview image is > currently not loading because QImage rejects it due to unsupported > "PhotometricInterpretation=34892". > I would describe the DNG file as "broken". > > digikam should at least load the larger preview image, like the Gwenview image > viewer does under Linux. By the way, XnView only loads the small thumbnail. > > Maik > -- You are receiving this mail because: You are watching all bug changes.
