Page 1 of 1

ImageMagick 6.3.4 unocorrected JPEG resolution

Posted: 2007-06-18T07:55:57-07:00
by lyuan
The latest build alway give me the JPEG resolution as 72x72. (300x300 acturally)
the old one 6.3.2 works fine.

Re: ImageMagick 6.3.4 unocorrected JPEG resolution

Posted: 2007-06-28T07:37:15-07:00
by t.hoepfner
Just a short "mee too". But the resolution detection is not always wrong.

We especially have problems with photos from Canon cameras, which save their files as 180dpi JPGs. The resolution of the images coming from the camera is correctly determined. But when such a file is opened and saved with Photoshop, the resulting image is interpreted as 72dpi, even though the actual resolution stayed 180dpi.

Sample pictures are here:

Original Photo
Photo saved with Photoshop

This is with 6.3.4-10 on MacOS X 10.4.10/Intel, installed via MacPorts.

Timo