David Nash » photo http://davidnash.com.au Freelance PHP developer - builder of high-quality dynamic websites Sun, 25 Jul 2010 23:56:32 +0000 http://wordpress.org/?v=2.8.4 en hourly 1 Batch reduce resolution of images in Ubuntu Linux http://davidnash.com.au/2009/02/batch-reduce-resolution-of-images-in-ubuntu-linux/ http://davidnash.com.au/2009/02/batch-reduce-resolution-of-images-in-ubuntu-linux/#comments Sun, 22 Feb 2009 03:56:27 +0000 David http://davidnash.com.au/?p=137 Open a terminal window or shell (who needs a GUI!?)
sudo apt-get install imagemagick
cd image_folder
mkdir resized
for f in *jpg
do
convert -resize 30% $f resized/$f
done

Easier than Photoshop, I reckon!

I needed this today for some photos I was uploading. Photos from recent cameras are huge and Australian bandwidth doesn’t cut it. So this really helps.

Obviously you only need to do the first line once. I found this in the Ubuntu forums but it took me a while to find the right combination of keywords in Google. View the original thread.

I needed to change jpg to JPG, because the camera used uppercase and Linux is case-sensitive. 30% was good for me but you may need to change that.

If you don’t understand this, ask me, I’m happy to help!

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