Compress image with ImageMagick?

They have: 140 posts

Joined: Jan 2003

[There may be a better forum for this post so feel free to move it]

I've looked but I just can't grasp it! How can I compress the image IMAGE.JPG so that it is a smaller filesize?

Thanks... hopefully this is such a simple question that I will get the answer quickly (and then feel stupid!)

(Using ImageMagick on the server side of course)

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They have: 447 posts

Joined: Oct 1999

well to reduce the image size you'd need to reduce the colors, reduce the resolution, or shrink the image

sometimes you can just do:
mogrify image.jpg
which may or may not reduce the image size.

otherwise, resize:
mogrify -geometry {$sizex}x{$sizey}! image.jpg

colors:
mogrify -colors 256 image.jpg

resolution:
not sure, i think -density may do it.

They have: 140 posts

Joined: Jan 2003

Right now I am using this (PHP):

system("/usr/local/imagemagick/mogrify -quality 25 file.jpg");

adn that is in test.php, which is in the same directory as file.jpg...

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