Couper une image

Faites un copier coller du code ci-dessous et lancez le dans votre navigateur.
Si vous souhaitez voir le résultat en démo (selon nous une bonne méthode d'apprentissage) cliquez ici (nouvelle fenêtre).

This example takes a local image, crops it and saves the result under a new name.

The source code:
<html> <head> <title>Cropping an image</title> </head> <body> <h1>Crop an image</h1> Here is the original image: <a href="orig_image.jpg" target="_blank">Image to crop</a> <? $filename='orig_image.jpg'; $array = getimagesize($filename); $width_orig= $array[0]; $height_orig= $array[1]; echo 'Width of original image: '.$width_orig.' '; echo 'Height of original image: '.$height_orig.''; /*if width longer than height, we crop the image from the center*/ if($array[0] > $array[1]) { $width=$array[1]; $height=$array[1]; $src_x=round($array[0]/2-$width/2,0); } else { /*we take the top of the image and cut the bottom*/ $height=$array[0]; $width=$array[0]; $src_x=0; } $temp = imagecreatetruecolor($width,$height); $image = imagecreatefromjpeg($filename); imagecopy($temp,$image,0,0,$src_x,0, $width, $height); /*create the cropped image and make it 50% of the original quality*/ imagejpeg($temp,'cropped-orig_image.jpg',50); echo 'Width of resized image: '.$width.' '; echo 'Height of resized image: '.$height.''; ?> Here is the cropped one: <a href="cropped-orig_image.jpg" target="_blank">Cropped Image</a> </body> </html>

Notes:
- there are some functions which require the GD 2.0.1 library or later (2.0.28 or later is recommended);
- you need to have the necessary permissions to be able to write a file on your server (see chmod on linux/unix);
- try this if you wish to verify the GD version: var_dump(gd_info());

You may wish to read additional materials from:
- http://us.php.net/getimagesize
- function.imagecreatetruecolor.php
- function.imagecreatefromjpeg.php
- function.imagecopyresampled.php
- function.imagejpeg.php

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Couper une image

Couper une image

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