jpg file after convert rotate corrupted.
Posted: 2009-03-13T01:35:48-07:00
I need rotate a jpg image by covert .
using command like:
convert -rotate -90 img.jpg nimg.jpg
The new image 'nimg.jpg' is rotated but corrupted with many vertical line on surface.
$ convert -version
Version: ImageMagick 6.4.6 2008-12-26 Q16 OpenMP
$ uname -a
Linux xx.com 2.6.18-53.el5 #1 SMP Wed Oct 10 16:34:19 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux
before:

after:

using command like:
convert -rotate -90 img.jpg nimg.jpg
The new image 'nimg.jpg' is rotated but corrupted with many vertical line on surface.
$ convert -version
Version: ImageMagick 6.4.6 2008-12-26 Q16 OpenMP
$ uname -a
Linux xx.com 2.6.18-53.el5 #1 SMP Wed Oct 10 16:34:19 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux
before:

after:
