PHP Image manipulation: 3D graph, zoom, rotate, crop, add watermark (ii)

Source: http://www.ido321.com/882.html

3, PHP to cut the image

   1:  <div>

   2:     

   3:     <img src="1.png" style= "border:1px solid red;" >

   4:  </div>

   5:  <?php

   6:  header ("Content-type","Text/html;charset=utf-8");

   7:

   8:/*

   9:* Picture clipping

  :* @param string $filename   The URL of the picture

One   :* @param int    $width      picture clipping width

  * @param int    $height     picture clipping height

  * @param int    $x          crop the position to the left of the picture

  * @param int    $y          crop the position where the top edge of the picture starts

  :* /

  :function cut ($filename, $x, $y, $width, $height)

  :  {

*   /     * Get image resource, need to crop the picture * /

  :     $image = imagecreatefrompng ($filename);

  20:

*   /     * Create a canvas with a new size, save the cropped picture * /

  :     $image _p = Imagecreatetruecolor ($width, $height);

  23:

  /     * * Use imagecopyresampled zoom * /

  :     imagecopyresampled ($image _p, $image, 0, 0, $x, $y, $width , $height, $width, $height);

  26:

       */* Save the cropped picture and name */

  :     imagepng ($image _p,' test1.png ');

  29:

  :/     * Release resources * /

To   :     Imagedestroy ($image _p);

  :     Imagedestroy ($image);

  :  }

*   /* Call function * /

  :  Cut (' 1.png ', 20,20,80,80);            

  £ º  ?>

  Panax Notoginseng:  <div>

  :     

  :     <img src="test1.png" style= "border:1px solid red;" >

Max   :  </div>

Effect

4, PHP to add watermark image

   1:  <div>

   2:     

   3:     <img src="1.png" style= "border:1px solid red;" >

   4:  </div>

   5:  <?php

   6:  header ("Content-type","Text/html;charset=utf-8");

   7:

   8:/*

   9:* Add watermark to background image, background image format PNG, watermark format gif

  :* @param string $filename   The URL of the picture

One   :* @param string $water      watermark Picture

  * /

  :function watermark ($filename, $water)

  :  {

*   /     * Get the size of the original image * /

  :     list($b _w, $b _h) = getimagesize ($filename);

  17:

*   /     * Get the size of the watermark picture * /

  :     list($w _w, $w _h) = getimagesize ($water);

  20:

*   /     * The random starting position of the image is printed in the background image * /

  :     $posX =rand (0, ($b _w-$w _w));

At   :     $posY =rand (0, ($b _h-$w _h));

  24:

*   /     * Get image resource, need to crop the picture * /

  :     $back = imagecreatefrompng ($filename);

  :     $water =  imagecreatefromgif ($water);

  28:

*   /     * Use the Inagecopy function to copy the watermark image to the specified location * /

  :     imagecopy ($back, $water, $posX, $posY, 0, 0, $w _w, $w _h);

  31:

       */* Save the watermarked picture and name */

  :     imagepng ($back,' test2.png ');

  34:

*   /     * FREE resources * /

  £ º     Imagedestroy ($back);

  Panax Notoginseng:     Imagedestroy ($water);

  :  }

  :/* Call function * /

Max   :  watermark (' 1.png',' test.gif ');            

In   :  ?>

  :  <div>

Add   :     

  :     <img src="test2.png" style= "border:1px solid red;" >

  :  </div>

Effect

PHP Image manipulation: 3D graph, zoom, rotate, crop, add watermark (ii)