Am 08.12.2015 um 03:40 schrieb Steven Fosdick: > My guess is that the camera does not record the raw image data any > differently when held in portrait mode so the RAW file, as seen by > darktable, is still effectively landscape but there is a marker set by the > camera in the EXIF data that says something along the lines of "this was > taken portrait". When darktable imports the picture it automatically > applies the orientation module to get the picture into portrait orientation > and that therefore counts as a modification.
That explanation sounds reasonable, however, ... > If I go to one of my portrait pictures and turn off the orientation module > it reverts to landscape. ... this does not happen for me (at least not if done by removing the history). If I take a portrait oriented picture and revert all changes by clicking on 0 on the history stack, the picture is still vertically oriented. It seems that the modules stay on independent of the history stack. Nevertheless, the "changes" marker disappears for this picture. If I switch all modules off manually, the picture orientation changes to landscape, I get a weird whitebalance etc. However, the picture is marked as changed. Clicking on "discard" in the lighttable's history stack module reapplies the three initial modules and marks the picture as changed. For landscape pictures, the behaviour is more or less exactly the same. There's only one difference: it is not marked as changed. When I enter the darkroom the 3 modules, including rotation, are applied automatically and the picture is marked as changed. This mark is removed by the "discard" button. Up to now, I thought of the "changes" marker as a way to tell if I see the embedded preview from the raw or an actual development preview of darktable. But it seems I misunderstood the concept. The manual is not very specific about this marker (or I missed an important part). For me, after all, it feels somehow inconsistent, it would be great if anybody could explain (or link to an explanation of) the exact behaviour and the reasons behind. Thanks and best regards Chris > On 7 December 2015 at 09:21, Christian Mandel <c.man...@gmx.net> wrote: > >> Hi all, >> >> for a while I wonder that freshly imported images are randomly marked as >> changed (with the +-wave icon). Now it seems that I have discovered a >> pattern: it affects only the portrait oriented images (Canon 5DII), and >> probably all of them. The dt version is 1.6.9, 64 bit on ubuntu 15.04, >> build from Pascal's ppa (1:1.6.9-0pmjdebruijn1~vivid). Checking older >> film rolls it seems that this only happens with recent dt versions and >> that it happens during import. Do you have an explanation? >> >> Thanks & best regards >> >> Chris ------------------------------------------------------------------------------ Go from Idea to Many App Stores Faster with Intel(R) XDK Give your users amazing mobile app experiences with Intel(R) XDK. Use one codebase in this all-in-one HTML5 development environment. Design, debug & build mobile apps & 2D/3D high-impact games for multiple OSs. http://pubads.g.doubleclick.net/gampad/clk?id=254741911&iu=/4140 _______________________________________________ Darktable-users mailing list Darktable-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/darktable-users
