https://bugs.kde.org/show_bug.cgi?id=474357
--- Comment #18 from [email protected] --- (In reply to Maik Qualmann from comment #16) > Hi Michael, > > The problem is that we don't know whether the face rectangles were saved > relative to the aligned orientation or not. The metadata standard doesn't > recommend this. Many programs, e.g., Picasa, save the face coordinates > relative to the unaligned image. Microsoft saves them relative to the > aligned image. You can't determine how it was saved based on the orientation > flag or the width/height of the face rectangles. > > However, we can identify MS Photo Editor based on its metadata; see my test > in Comment 5. > > However, we would then have to save the face rectangles compatible with MS > Photo Editor when writing. > > I don't see any other option; for performance reasons, I don't think we can > do it with the face engine when scanning the images. > > Maik When you say Picasa and Microsoft don'T save it the same way, do you mean they are both writing to the Microsoft regions section? Since Microsoft implemented the initial tags, shouldn't their way of doing it be the actual truth? Also, in any case, could there be at least an option to rotate tags one at a time and for the whole picture (the reasoning to have both is that once DigiKam starts to add its own auto detected tags, we end up with rotated AND unrotated tags). We could then maybe get a tool that would allow to auto-manually scan every file containing this regions section to validate they are fine. The biggest problem right now is that it looks like the face recognition AI uses thes existing tags to "learn" someone and these wrongly rotated tags breaks it. -- You are receiving this mail because: You are watching all bug changes.
