[H-GEN] resample images at the command line

Mark Venz mvenz at itee.uq.edu.au
Mon Apr 28 18:20:57 EDT 2003


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On Mon, Apr 28, 2003 at 06:49:16PM +1000, Stuart Longland wrote:
> 
> Russell Stuart wrote:
> 
> > I am not sure what "resample" means...
> 
> Resampling images means you alter the size of the image by blending
> pixels together when reducing size or by using gradients when enlarging.
> 
> This is opposed to resizing which is simply changing the size of each
> pixel - looks ugly and can lead to pixelation.

ImageMagick is the go.
http://www.imagemagick.org/
Off the web-page:
| Here are just a few examples of what ImageMagick can do:
|  Convert an image from one format to another (e.g. TIFF to JPEG)
|  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
|  Describe the format and characteristics of an image

I've massaged 100's of images with it. for example:
http://www.itee.uq.edu.au/~robocup/2003/resources/workshops/wkbuild/stg1.html

Mark

-- 
Mark Venz <mvenz at itee.uq.edu.au>
                             | Humans always do the most
                             | intelligent thing after every
<legomeister at itee.uq.edu.au> | stupid alternative has failed. 
                             |    --R. Buckminster Fuller 

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