batch for transforming images

[kokiperex at gmail.com]

> Date: Tue, 16 Sep 2008 22:00:43 -0500
> From: Bruce Bales <bbales at cox.net>
> Subject: Re: batch for transforming images
> To: Kubuntu Help and User Discussions <kubuntu-users at lists.ubuntu.com>
> Message-ID: <200809162200.43457.bbales at cox.net>
> Content-Type: text/plain;  charset="iso-8859-1"
>
> On Monday 15 September 2008 12:21:03 Peter Klaassen wrote:
>> Op Saturday 13 September 2008 21:00:06 schreef David Fletcher:
>> > On Saturday 13 Sep 2008, Peter Klaassen wrote:
>> > > Is thre a GUI or terminal programm that can resize
>> > > all the imgaes in a dir to for instance 800 pixels width
>>
>> I found aut that digikam can handle these batches very well.
>>
>>
>> --
>> Peter
>> Registered Linux user # 458207
>
> convert a bunch of pictures titled p8240???.jpg to 800x600 titled
> pp8240???.jpg
>
> for i in p8140*; do convert -sample 800x600 "$i" p$i; done
>
> If you tell it "-sample 800"  without the "x600," it will keep the same form
> factor.  You have to have imagemagick installed.
> bruce
>
>

I like this ones:

mogrify -resize 800x600 *.jpg
or
mogrify -resize 800 *.jpg
or
mogrify -resize 50% *.jpg

--
Jorge