batch resize images using find, xargs and convert
Posted 02-20-2011 at 04:30 PM by dr_agon
applies to: linux, find, xargs, convert, image processing
'convert' command, which is a part of ImageMagick package can be used for image resizing, but it lacks ability to process multiple files (in version of ImageMagick 6.5.7-8 2010-12-02). Instead of writing a shell script you can use find and xargs commands to collect filenames and invoke convert with one filename at a time, like this:
Code:
find -iname "*.jpg" -printf "%f\0" \
| xargs -0 -I {} convert -resize 50% {} small/{}
Code:
find [directory to search, if omitted = current] -iname [search pattern] -printf "%f\0" \
| xargs -0 -I {} convert -resize [% or widthxheight] [directory for converted images]/{}
The find parameters make search case-insensitive and output NULL delimited filenames without path. The xargs -I {} parameter makes {} a "placeholder" for data from find.
See man pages for details.
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