Legacy ImageMagick Discussions Archive

Hi,

I face the following problem:

I try to reduce the size of jpg images by reducing the quality, here's one example of my usage:
convert DSC_1312.JPG -quality 90 DSC_1312_2.JPG

The converted image looks like:

- the first, top 60% of the picture is converted
- the last, bottom 40% of the picture is just black

I'm using ImageMagick 6.6.9-1 2011-03-30 Q16 on my Synology Diskstation

Any idea?

Thx, Martin

Either upgrade IM to the latest version and libjpeg as well or post one of your images that fail so others can test it.

There have been a number of jpeg related bug fixes since your release. Perhaps one might have fixed your problem

see
http://www.imagemagick.org/script/changelog.php

fmw42 wrote:Either upgrade IM to the latest version and libjpeg as well or post one of your images that fail so others can test it.

There have been a number of jpeg related bug fixes since your release. Perhaps one might have fixed your problem

see
http://www.imagemagick.org/script/changelog.php

Hi,

yes, it works now.

Thx very much, Martin