//原始图像 - $dst = "/upload/20140914/20120914040740-0.jpg"; //图片路径
//原始图片信息 - $dst_info = getimagesize($dst);
- switch ($dst_info[2])
- {
- case 1:
- $dst_im =imagecreatefromgif($dst);break;
- case 2:
- $dst_im =imagecreatefromjpeg($dst);break;
- case 3:
- $dst_im =imagecreatefrompng($dst);break;
- case 6:
- $dst_im =imagecreatefromwbmp($dst);break;
- default:
- die("不支持的文件类型1");exit;
- }
- //水印图像
- $src = "/images/shuiyin.png"; //注意路径要写对
- $src_info = getimagesize($src);
- switch ($src_info[2])
- {
- case 1:
- $src_im =imagecreatefromgif($src);break;
- case 2:
- $src_im =imagecreatefromjpeg($src);break;
- case 3:
- $src_im =imagecreatefrompng($src);break;
- case 6:
- $src_im =imagecreatefromwbmp($src);break;
- default:
- die("不支持的文件类型1");exit;
- }
- //半透明格式水印
- //$alpha = 50; //水印透明度
- //imagecopymerge($dst_im,$src_im,$dst_info[0]-$src_info[0]-10,$dst_info[1]-$src_info[1]-10,0,0,$src_info[0],$src_info[1],$alpha);
- //支持png本身透明度的方式
- imagecopy($dst_im,$src_im,$dst_info[0]-$src_info[0]-10,$dst_info[1]-$src_info[1]-10,0,0,$src_info[0],$src_info[1]);
//保存图片 - switch ($dst_info[2]){
- case 1:
- imagegif($dst_im,$dst);break;
- case 2:
- imagejpeg($dst_im,$dst);break;
- case 3:
- imagepng($dst_im,$dst);break;
- case 6:
- imagewbmp($dst_im,$dst);break;
- default:
- die("不支持的文件类型2");exit;
- }
//销毁gd库对象 - imagedestroy($dst_im);
- imagedestroy($src_im);
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