php使用高斯算法实现图片的模糊处理功能示例

<?php
class image_blur{
   function gaussian_blur($srcimg,$savepath=null,$savename=null,$blurfactor=3){
    $gdimageresource=$this->image_create_from_ext($srcimg);
    $srcimgobj=$this->blur($gdimageresource,$blurfactor);
    $temp = pathinfo($srcimg);
    $name = $temp['basename'];
    $path = $temp['dirname'];
    $exte = $temp['extension'];
    $savename = $savename ? $savename : $name;
    $savepath = $savepath ? $savepath : $path;
    $savefile = $savepath .'/'. $savename;
    $srcinfo = @getimagesize($srcimg);
    switch ($srcinfo[2]) {
      case1: imagegif($srcimgobj, $savefile); break;
      case2: imagejpeg($srcimgobj, $savefile); break;
      case3: imagepng($srcimgobj, $savefile); break;
      default: return'保存失败'; //保存失败
    }
    return $savefile;
    imagedestroy($srcimgobj);
  }
}
$image_blur = new image_blur();
//blurfactor的值代表模糊程度，savepath为空时候直接覆盖，savename为空直接用原名
$image_blur->gaussian_blur($srcimg="./5.jpg",$savepath=null,$savename=null,$blurfactor=5);
?>