even though no image data is lost, the orientation of the camera when taking the shot is lost this can be important information and cannot be reconstructed.įeh should be able to arbitrarily rotate images before displaying them without changing the file, preferably with a flag like -rotate=90 or -rotate=EXIF to do this based on the EXIF tags. pre-rotating the imagefile is NOT lossless. changing the file itself changes the checksums. not always appropriate sometimes we care how the jpeg data is represented, and not the abstraction of how the image "looks".omnipresent nearly all digital cameras have accelerometers and record the data in the form of EXIF tags, instead of rotating the images.feh avoids useless/redundant feature bloat pretty well. With most features, this is usually the case. autorotation-based-on-EXIF is separate from image-viewing, and better handled externally and pre-runtime. feh is an image-viewer with a few modular and configurable tools The argument being made here is presumably something like this:
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