PrestaShop/PrestaShop — pull request #394 by rikless (2013-04-18 20:05:16+00:00)
Title: [*] FO : generate jpg image with progressive loading

Add progressive loading option to jpeg file generated by PHP-GD library.

In FO, it looks like faster loading on thickbox picture format, or product/product-list pages with lot of pictures.

http://www.php.net/manual/en/function.imageinterlace.php