Resize images

[Anon]

i followed this code to resize the images user posted to my site, but the quality is really bad (non anti-alias)..
code:
$src_img = imagecreatefromjpeg($lgimg);
$new_w = imagesx($src_img)/4;
$new_h = imagesy($src_img)/4;
$dst_img = imagecreate($new_w,$new_h);
imagecopyresized($dst_img,$src_img,0,0,0,0,$new_w,$new_h,imagesx($src_img),imagesy($src_img));

imagejpeg($dst_img, $final_smname,100);

please, tell me how to make it better..
thank you..

[Anon]

also, is there any way to do this WITHOUT gdlib, and WITHOUT installing anything on the server?

i'm looking for a php function that can do NOTHING but resize jpg images.

thanks

mike

[[deleted]]

If you want a better quality, try using imagemagick

[[deleted]]

You don't want that.

PHP is a scripting language, not a heavy-duty data-processing language.
You'll need to write a jpeg decompression/compression routine, and parse each pixel of the image (at 100x100 there are 10k pixels).

In short:that will take a long time.
Go through the trouble and install gdlib or imagemagic.