Gossamer Forum: General: Perl Programming: Image::Magick

Apr 26, 2007, 2:22 AM

Andy

Veteran / Moderator (17298 posts)

Apr 26, 2007, 2:22 AM

Post #1 of 6

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Image::Magick - animations showing corrupt :(

Hi,

I've come across a problem with images that are animated, and "scaling" the image dimensions down.

The code is:

Code:
         $image = Image::Magick->new; 
         $x = $image->Read($path); 
         if ($x) { print "Error: $x"; exit; } 

       print qq|Debug: geometry=>$_PercentageSmaller \n|; 
         $x = $image->Scale(geometry=>$_PercentageSmaller); 
         if ($x) { print "Error: $x"; exit; } 


       print qq|Debug:  filename=>$WriteImage \n|; 
         $x = $image->Write(filename=>$WriteImage); 
         if ($x) { print "Error: $x"; exit; }

Attached is a sample image that is made. Anyone got any ideas? :/

TIA

Andy (mod)
andy@ultranerds.co.uk

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Apr 26, 2007, 9:06 AM

eupos

User (186 posts)

Apr 26, 2007, 9:06 AM

Post #2 of 6

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Re: [Andy] Image::Magick - animations showing corrupt :( In reply to

Hi Andy,

Actually this is a not new problem Unsure

Here is the more info from the source:
http://www.imagemagick.org/...ds/index.html#resize

p.s. You must use Coalesce() to convert the image sequence to one whose images all have the same dimensions.

rgrdz
Boris

Last edited by:

eupos: Apr 26, 2007, 9:08 AM

Apr 27, 2007, 1:23 AM

Andy

Veteran / Moderator (17298 posts)

Apr 27, 2007, 1:23 AM

Post #3 of 6

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Re: [eupos] Image::Magick - animations showing corrupt :( In reply to

Hi,

Ah, I was wondering if it was an ImageMagick issue :(

Doesn't sound like much fun to do then;

1) Copy image to a tmp folder
2) Write the contents of Coalesce() to tmp files
3) Resize the "filmstrip" of images
4) Put the all back together again and save.

Bit long winded for my liking, and probably pretty time consuming :(

Thanks anyway.

Andy (mod)
andy@ultranerds.co.uk

Apr 27, 2007, 2:54 AM

dan

Enthusiast (749 posts)

Apr 27, 2007, 2:54 AM

Post #4 of 6

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Re: [Andy] Image::Magick - animations showing corrupt :( In reply to

I get around this by using Gifsicle (http://www.lcdf.org/gifsicle/) to resize and manipulate animated GIF's. Very powerful application.

----
Cheers,

Dan
Principal

Virtual Solutions

Apr 27, 2007, 3:32 AM

Andy

Veteran / Moderator (17298 posts)

Apr 27, 2007, 3:32 AM

Post #5 of 6

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Re: [dan] Image::Magick - animations showing corrupt :( In reply to

Hi,

Thanks for the reply.

Is there a Perl interface for this program, or would I just use `` / system() to run the command line stuff? (Perl interface will be good - but the system commands will be fine too =)

TIA

Andy (mod)
andy@ultranerds.co.uk

Apr 27, 2007, 8:33 AM

dan

Enthusiast (749 posts)

Apr 27, 2007, 8:33 AM

Post #6 of 6

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Re: [Andy] Image::Magick - animations showing corrupt :( In reply to

Unfortunately not - not that I know of. I use within PHP environment using exec function. To state the obvious, make sure to taint check any user-passed variables.

----
Cheers,

Dan
Principal

Virtual Solutions

Image::Magick - animations showing corrupt :(

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