php image resize quality
 

I try to use PHP GD library to resize image to thumbnail size, however I found the small converted image has bad quality(distorted color), how can I improve the image quality by using PHP GD library:

$first=imagecreatefromjpeg($uploadfile); 

define(MAX_WIDTH, 180);

define(MAX_HEIGHT, 135);

$width = imagesx($first);

$height = imagesy($first);

$scale = min(MAX_WIDTH/$width, MAX_HEIGHT/$height);

$new_width = floor($scale*$width);

$new_height = floor($scale*$height);

$second=imagecreate($new_width, $new_height);

imagecopyresized($second,$first,0,0,0,0,$new_width,$new_height,$width,$height);

 imagejpeg($second,$v_thumbnailfile);

Thanks for any response.

Re: php image resize quality
 

Can anyone answer my question?