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Why does my imagemagick com object only re-size my images sometimes?

Posted on 2010-11-15
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Last Modified: 2013-11-08
Why does the imagemagick object only re-size my images some of the time?
$img = $com_IM->Convert($Logo,'-background','white','-layers','-merge','-flatten','-resize','80x60',$newImage);
This works some times. I can not seem to narrow it down to a specific image format, nor image size. The extra commands do not seem to affect it either since they seem to run all the time.
I can not tell if there is something that I am doing wrong which is cropping up from time to time but it does not seem to have any set pattern of not working.
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Question by:haloexpertsexchange
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8 Comments
 
LVL 2

Expert Comment

by:gtagliani
ID: 34140214
if the original image fits in 80x60 it will not resize it.
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LVL 13

Author Comment

by:haloexpertsexchange
ID: 34140248
Unfortunately that is not the issue here, I do not care about images that are smaller than the requested dimensions, just the ones that are larger.
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LVL 2

Expert Comment

by:gtagliani
ID: 34140397
try with this:

$image = new Imagick('image.jpg');
$image->scaleImage(80, 60, true);

im not sure if convert is a Imagick function. http://php.net/manual/en/book.imagick.php
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LVL 13

Author Comment

by:haloexpertsexchange
ID: 34140411
I could not get imagick to ever work for me, every time I tried using it, fastcgi would crash so what I am using now is the imagemagick object, which is a com object connection to imagemagick.
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LVL 40

Expert Comment

by:Richard Quadling
ID: 34143739
@gtagliani, see http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/ImageMagick/Q_26590266.html (PHP is a different version to the pre-compiled extension).

@haloexpertsexchange, As a test does it behave consistently for the same image? If so, can you provide a working and non-working image please. That way, we can evaluate the actual actions.

Out of interest, does it work if you use the command line for ImageMagick?
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LVL 13

Author Comment

by:haloexpertsexchange
ID: 34158303
I have not been able to find an image that it consistantly works, or does not work for. An image that I could run through fine yesterday is not working correctly today.
The commands will run through the command line as normal ImageMagick commands with one small change, $img = $com_IM->Convert($Logo,'-background','white','-layers','merge','-flatten','-resize','80x60',$newImage);
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LVL 13

Accepted Solution

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haloexpertsexchange earned 0 total points
ID: 35690796
Never found an answer to my question, I have since moved on and worked around the problem.
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Author Closing Comment

by:haloexpertsexchange
ID: 35718397
no answer found
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