View Source: ImageMagick - Waikato Linux Users Group

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[ImageMagick | http://www.imagemagick.org/] is a collection of tools to mozify images, mostly from the CommandLine. Capabilities include:

* Resize, rotate, sharpen, color reduce, or add special effects to an image
* Create a montage of image thumbnails
* Create a transparent image suitable for use on the Web
* Turn a group of images into a GIF animation sequence
* Create a composite image by combining several separate images
* Draw shapes or text on an image
* Decorate an image with a border or frame

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!!! Usage Examples

! Resizing

 convert -sample width x height input.jpg output.jpg

The widths/heights can also take % values. It scales proportionally, so going 25%x25% on a non-square image will still make it come out non-square

! Joining images together

 convert files +append output.jpg

The +append appears to join them together left to right. -append possibly does something else. Haven't really looked into it.

Situation: You have a bunch of digital photos that you want to string next to each other for a website banner

1. Resize them all to 400px high (Just for ease of doing stuff later)

 for img in *.jpg
 do
    convert -sample x400 "$img" "$img"
 done

2. Join them together

 convert *.jpg +append output.jpg

This will of course join them in alphabetical order. You may want to do something about that.

3. Final resize/add gradients in [TheGIMP]

One page links to ImageMagick:

ImageEditor

Last edited on Wednesday, April 14, 2004 6:32:00 am by AristotlePagaltzis

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