On Monday 03 May 2004 05:54 pm, Nem W Schlecht wrote: Thanks everybody for some great advice and ideas.
Dave > David A Iacobellis e-mailed me on Mon May 3 14:51:55 2004 > (Re: "[Gimp-user] picture orientation") > > >I recently purchased a Nikon D70 camera. After getting the camera I > > upgraded GIMP to 2.0.1. When I take a picture with the camera oriented > > horizontal I have no problems. When I take a picture with the camera > > oriented vertical I have discovered a puzzling glitch. > > > >The camera automatically orients vertical photos vertical on the built in > >viewer for quick viewing instead of horizontal. After downloading the > > images to my computer kuickshow will also automatically orient the > > untouched vertical photos vertical. If I open the vertical photos in > > GIMP the photos are horizontal (as they should be). I went ahead and > > rotated a couple of the images to get them vertical in GIMP and saved > > them. Now in kuickshow the GIMP modified vertical photos are horizontal > > in the opposite direction. > > > >What causes the camera and kuickshow to automatically orient the vertical > >photos and is there anyway to get GIMP to do the same or get kuickshow to > >stop doing it? > > There is an EXIF tag that describes the orientation of the photo. When you > open/rotate/save in the Gimp, it does *NOT* modify this EXIF header, so > kuickshow is re-rotating it (as it thinks it needs to, since the > Orientation tag is still in the EXIF header). > > Get "jhead" which has a nice option to remove the EXIF orientation tag > (-norot). Also, you should use "jpegtran" to rotate your image - not the > Gimp (as loading it, rotating it, and then saving it will reduce the > quality - jpegtran can rotate it with no loss). > > jpegtran comes with the JPEG library > > jhead is available here: http://www.sentex.net/~mwandel/jhead/ > > Actually, jhead can call "jpegtran" for you, so you may just want to do > this once you transfer images from your camera: > > for i in *.jpg > do > jhead -autorot -norot $i > done _______________________________________________ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
