[NTLUG:Discuss] shrink images globally

[Steve Baker]

Terry Henderson wrote:
> I sometimes find the need to resize a whole directory of images to a
> certain size and would like to learn some efficient way to do it
> globally.  I use gimp, but it's several mouse clicks and you manually
> enter pixel sizes each time for each image and if there are 20 or 30
> images, well, you can imagine, it's time consuming.

You need something that'll take arguments on the command line - try
Image Magick....oh - right - you already found that.

Then you can do a 'find' for all files with the right extension:

   find . -name \*.jpg -exec myscript {} \;


...then in 'myscript' write something like;

   convert -size 640x480 $1 tempfile.jpg
   mv tempfile.jpg $1

...a combinations of 'find' and a script will solve almost any problem
that involves processing a bunch of files.

---------------------------- Steve Baker -------------------------
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