php - Degrading a jpg image quality each time a user visits a page? -



php - Degrading a jpg image quality each time a user visits a page? -

i'm trying work out best way degrade quality of jpeg image in web page http://vimeo.com/3750507

is there server-side way of saving , re-saving @ lower quality displaying image each time page served?

thanks in advance.

the next script degrade original image 1 'quality point' on each page load, starting @ 99. isn't robust, should demonstrate concept.

warning: replace original image! utilize re-create if original important!

session_start(); if (empty($_session['quality'])) $_session['quality'] = 99; $file = 'degrade.jpg'; imagejpeg(imagecreatefromjpeg($file), $file, $_session['quality']); $_session['quality']--; header('content-type: image/jpeg'); echo file_get_contents($file);

on first page load:

tenth page load:

one hundredth page load:

php image-processing

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