uploadify上传之后,缩略图显示失真,请问是否还有哪些我没有设置的才会失真？我原图是1024*768，等比例压缩之后还是失真很严重

//图片上传路径
'UPLOAD_PATH'=>'./Uploads/',

$imgPath = C('UPLOAD_PATH').$info['Filedata']['savepath'].$info['Filedata']['savename'];
$image = new Image();
$image->open($imgPath);
$thumbPath = C('UPLOAD_PATH').$info['Filedata']['savepath'].'180_'.$info['Filedata']['savename'];
$image->thumb(180, 180)->save($thumbPath);
echo $thumbPath;

20150722150547.jpg ( 8.93 KB 下载：12 次 )