how to crop image using gd ??

[PHPycho]

First of all Hi to everybody......
I am again back with the new problem related to GD....
I have been given a task of image manipulation like cropping image.....

The scenario:
there are 4 input fields like x1,y1 ,x2,y2 for entering the starting point and the end point of croping of image. when the form is submitted then it should make a crop image on the /crop/ directory......

The problem:
I didnt got the idea ...of crop ...
I would be greatful if anybody help me in cropping images using four fields x1,y1,x2,y2..

Thank you in advance

[clamcrusher]

you could use imagecopy()

if your looking for a code sample or tutorial, try a search, im sure you will find more than you need.
php crop image

or similar terms.

[kromey]

A search of this forum would turn up a nearly identical thread discussed earlier this week. Also, the user comments in the PHP manual for imagecopy include an excellent image cropping script (fourth one down).