Is ImageMagick Better?

Anon

Hi,

I am using these php functions for my jpg manipulation:

$new_im=imagecreatetruecolor ($new_width,$new_height);
ImageCopyResized($new_im,$im,0,0,0,0,$new_width,$new_height,$im_width,$im_height);

I have heard about ImageMagick and am wodering if it is worth installing. Currently, if I upload and scale a picture down to one half the size, I do see small jaggies. Is ImageMagick going to eliminate all jaggies, similar to resizing in a desktop graphics program? Also, how much disk space does ImageMagick take up? So, the last question is, is it worth it? Thanks for any feedback.

fahrvergnuugen

Depending on your version of PHP, imagecopyresized will resize the image without using interpolation, which is why the thumbnails look jagged.

use imagecopyresampled instead [you need php 4.0.6 or greater]

compare
http://www.php.net/imagecopyresampled
http://www.php.net/imagecopyresized

fahrvergnuugen

ps, all thumbnails created on www.dubr.com are created using the copyimageresampled function [from the files in www.dubr.com/images/gallery_originals/]

the_reverend

I think the imagemagick images come out looking a little cleaner (see http://www.reverendsgarage.net/ ), but it looks like imagecopyresampled is a lot easier to use, so I'm working on using that for my new script.