On Sat, 2005-04-02 at 15:26 -0800, Richard C. Steffens wrote: > Is there a set of instructions for automating the task of scaling images? > > I have a large number of images that I want to scale to three different > sizes. > I successfully do this manually, and it doesn't take too long, but I'd like > to find (or create -- but I can't imagine someone hasn't already done this) a > script to run that will do this for me. > > I would point the Gimp to a directory containing links to images, and have > the > script cycle through all the images, creating three copies of each image, > each scaled to a different size and leaving them in that directory. To get > even fancier, I'd save each size in a sub-directory. > > Thanks for helping a Gimp newbie. > ImageMagick is your friend here. It's specifically designed for just the type of batch operations you're wanting. Check out
man convert man mogrify and man ImageMagick for more details. Basically you would write a quick shell script along these lines: #!/bin/bash indir=/directory/with/original/pix bigpix=/direceory/with/big/output medpix=/directory/with/med/pix thumbpix=/directory/with/thumbnail/pix thisdir=`pwd` cd $indir for $img in *.jpg do convert -size 800x800 -resize 800x800 $img $bigpix/$img_big.jpg convert -size 640x640 -resize 640x640 $img $medpix/$img_med.jpg convert -size 120x120 -resize 120x120 $img $thumbpix/$img_thumb.jpg done cd $thisdir # end of bash script HTH, -- Jeff _______________________________________________ Gimp-user mailing list Gimp-user@lists.xcf.berkeley.edu http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
