Resize all phots in a folder

Boffy · 01-02-2005, 08:26 AM

Is there anyway I can make all the photos in one folder samller so they can be e-mailed easier they are huge at the moment.

Boffy

slackie1000 · 01-02-2005, 08:33 AM

hi there,

yes. you just need to write a script using the application

Code:

convert

'man convert' is your friend.

regards

slackie1000

Boffy · 01-02-2005, 08:50 AM

I can use it but how do you do it for a whole directory?

convert -geometry 25%x25% *.jpg - When i use that the new files end with .1 , .2 etc.

Can anyone tell me how to make it go to .1.jpg or something, or even a mass renaming program.

What a great program.

Boffy

slackie1000 · 01-02-2005, 11:30 AM

hi there,

no shell guru, but i think this one is not hard.
something like that can help. i suppose that all files are jpg.

Code:

#! /bin/bash
for filename in *.jpg
do
       dummy=$filename
       convert -geometry 25%x25% dummy   
done

i didn't test. the rest you should be able to do by yourself.

regards
slackie1000

ttolst · 01-02-2005, 11:46 AM

shouldn't it be $dummy in the convert line?

alternative:

mkdir small_images

ls *.jpg | xargs -i convert -geometry 25%x25% {} small_images/{}

not as readable, but i am more into the xargs command than actual shell script.

Boffy · 01-02-2005, 11:56 AM

Code:

#! /bin/bash
for filename in *.jpg
do
     convert -geometry 25%x25% $filename new.$filename
done

with that slight alteration shown above it works great thanks a lot.

Boffy

slackie1000 · 01-02-2005, 01:54 PM

hi there,

great! this is how it should work:
a small input leading to the solution.
glad to help!!

regards

slackie1000

Boffy · 01-02-2005, 02:20 PM

thanks a lot!

Boffy