convert converts just about 60% of image

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McSaarli
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Joined: 2011-10-09T05:41:17-07:00
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convert converts just about 60% of image

Post by McSaarli »

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
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fmw42
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Location: Sunnyvale, California, USA

Re: convert converts just about 60% of image

Post by fmw42 »

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
McSaarli
Posts: 2
Joined: 2011-10-09T05:41:17-07:00
Authentication code: 8675308

Re: convert converts just about 60% of image

Post by McSaarli »

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
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