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I've been scanning a lot of photos recently, more than one at a time. I now have multiple jpegs, each containing multiple photos.

Can I, using Gimp, "split" a jpg into 3 smaller files ?

What I used to do is : copy the jpg 3 times, and crop a different picture in each copy.

There must be an easier way to do this !

EDIT : Is there a plugin that can do that ? I've looked around, but only found plugins that "cut" an image into pieces of equal size.

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can you post an example picture structure? What I'm looking for is if the pictures are separated by blank space or butted up nxt to each other... –  KronoS Oct 25 '10 at 16:31

5 Answers 5

up vote 15 down vote accepted

ImageMagick. It's a command-line tool but amazingly powerful and flexible so worth the effort to learn it. For example:

convert -extract 1024x1024+0+0 original.png target.png

Where:

  • 1024x1024 is the width and height of the required crop
  • +0+0 are x and y offsets into the original image

You can stick dozens of these commands into a .cmd file and run them effortlessly.

Look at the ImageMagick documentation to see there are thousands of options to these commands. A very powerful tool and open source too!

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In order to make it quickly you can use:

Ctrl + D to duplicate the Image
Shift + C to crop the images
Ctrl + S to save

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I've been using the Divide Scanned Images plug-in which works well.

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Michael's Paste as -> New Image works, but I generally use Cut rather than Copy so I don't duplicate content.

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You can do it like this:

  • Rectangle select an image
  • Edit -> Copy
  • Edit -> Paste as -> New Image
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