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Bulk resize images with GIMP
I shot a couple of dozen pictures in Seattle yesterday, and I wanted to put them on Flickr. Problem is that Flickr has a monthly upload bandwidth limit, and my Canon EOS 400D creates 3382×2259 images, but for Flickr a 1200×800 should suffice; therefore I decided to resize them before uploading.
How to do that with a batch process, rather than by hand?
I came up with a nice solution using GIMP (for Linux Ubuntu, but it’s valid for other Linux flavors as well).
Here’s how.
Install the package gimp-plugin-registry, which includes also David’s Batch Processor (name says all).
Now open Gimp, go to Xtns, and then click “Batch Process…“.
Here you can configure the details, expecially:
- which images you want to convert (”input” tab)
- how you want to resize them (”resize” tab)
- the type and quality of output images (in the “output” tab)
- renaming (you can’t overwrite the original files; choose a different directory for output).
It works!
Check them out on my flickr page (pictures have a friendly CreativeCommons license, you can use them).
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4 People have left comments on this post
May 25, 2008 - 11:05:54Hi Simone, :)
nice tip… but perhaps this package is only in Heron’s repos?
Anyway, I use imagemagick to perform this operation. Once installed, you can easily make several operations, such as resize. Just type in a terminal (pointing in a folder where the images to be resized are located):
mogrify -resize 1200x1200 *.jpgThis command resizes all the .jpg files (and overwrites them), putting them in a square of 1200×1200 pixels, and keeps the right orientation (landscape or portrait) of the photos. The result is a proper resizing of all the images in a snap.
Hope this can be another useful tip. ;)
Bye,
Aldo
Hi Simone, have a look at the Flickr uploader tools: http://www.flickr.com/tools/
Cheers, Lee
Those two solutions sounded great, but the extension did not work for me at all. Two complex errors came up about something to do with the filenames.
The second, imagemagik, I could not find in the Ubuntu repos, so I’m still looking for a solution to bulk image editing!
Thanks,
Keith
Sounds nifty. Any idea if this is available for that *other* o/s?