I have a bunch of thumbnail images created from images taken with a digital camera, most are in landscape orientation but some are in portrait orientation. Since this spring, both Firefox and Chromium fail to show the portrait mode images correctly and instead smushes them into landscape mode thus with severe distortions.
Each thumbnail was created by
convert from ImageMagick. The portrait mode images get rotated clockwise or counterclockwise:
Code:
convert "$jpeg" -rotate -90 -resize x256 "t_$jpeg";
Maybe that is where the error lies, but Gimp shows these generated, portait mode thumbnails in correct orientation so I am at a loss as to what to modify so that Chromium and Firefox will show them correctly. Is there a way to do that without having to regenerate each and every thumbnail?