create image from a part of big image

myrmidon · 07-06-2007, 02:53 AM

hello to all, i'm wondering is it posible to
create an image(jpeg,png,tiff etc)
from bigger image.For example i have a big jpg and i want to create smaller image which will show part of only 20x20 px from my big image .

can this be done i c language or php ?(not thumbnailning!)

thank you...

Tinkster · 07-06-2007, 03:36 AM

My understanding is that ImageMagick has bindings for both C and PHP
(along with many others), and its command-line tool convert certainly
will allow you to crop a piece out of an image.

Cheers,
Tink

mallux · 07-06-2007, 04:46 AM

If you're using PHP (maybe as part of a web application) then the GD library (which is usually supplied as a module for your particular distribution if it's not already compiled in) has lots of functions for image manipulation.

I googled for "php image crop gd" and got loads of useful examples like this one: http://haugland.ca/guides/35/

myrmidon · 07-11-2007, 02:00 PM

ok thanks You guys, will try that... The "crop" word was the crucial word , thank you guys...