[magick-users] Preserving EXIF orientation with convert
Anthony Thyssen
anthony at griffith.edu.au
Wed Oct 29 00:02:04 PDT 2008
Fridtjof Busse on wrote...
| Hi,
| I'm using ImageMagick 6.3.7.9 and quite often use convert to resize
| jpeg-images. ImageMagick preserves the EXIF header but always drops the
| orientation tag, making it impossible to automatically rotate the
| produced images.
| Is there any way to change this? Why does convert drop the header
| anyway, I'm just changing size and quality, nothing else.
| Thanks.
|
That sounds like a BUG.
IM should not do this, especially if the other EXIF headers are
preserved.
IM may drop all the headers and profiles if the image was not used as a
destination image in a alpha composition of two images. The destaintion
image meta-data is preserved in the result not the source image.
Anthony Thyssen ( System Programmer ) <A.Thyssen at griffith.edu.au>
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