Simple script to mass resize jpgs??

[Guardian-Mage]

I am looking for the easiest and quickest way to take 46 .jpg photos, resize them, say to 25%, and reduce their quality to say 65% and then save them. Is the best way with a shell script or C++ or what and how do I go about doing it?

[arsenic23]

I use phatch for such things:
http://photobatch.stani.be/

[jordilin]

I would go for some scripting with Perl using the Image::Magick module. It should be quite easy. There are already some tools in the repositories to do that if I remember. If you want to do some Perl, just check this web page
http://www.imagemagick.org/script/perl-magick.php

[aysiu]

I would also recommend ImageMagick. It doesn't even have to be a script. It can just be a one-line command (supposing all the images are in the one folder).

[meatpan]

I Agree with the above users, and would like to add that the 'convert' program (which is from the ImageMagick package) will get the job done. convert -resize <file-1.jpg> <file-resized.jpg>

[rustalot]

You should take a look here: http://www.imagemagick.org/Usage/ . It will be very helpful.

I imagine if you want to resize all jpegs in directory foo, you could do something like


#!/bin/bash
#script to resize jpegs

for i in *.jpeg
do
(resize command)
done


If there's something wrong with my bash, let me know...

[dwhitney67]

I uses this script to make my thumbnails:


#!/bin/bash

FILES=*.jpg

mkdir -p ./thumbs

for i in $FILES
do
echo "Processing image $i..."

/usr/bin/convert -thumbnail 200 $i ./thumbs/thumb.$i

done

[trak87]

Install ImageMagick and do it as a one line command as aysiu says. I just tested this and it works:


for i in *.jpg; do convert -resize 25% -quality 75 "$i" "$i"_smaller.jpg; done

You will end up with a new set of files with the word "smaller" in them. To be on the safe side, back up the original images before doing running the command.

[ThinkBuntu]

Use the "mogrify" command in imagemagick. Works very, very well.

[Guardian-Mage]

for i in *.jpg; do convert -resize 450x400! -quality 65 "$i" thumb/"$i"; done


works fine thanks