I was wondering if anyone can teach me how to optimize an image when a user uploads? I would like to reduce the size quality of the image so when I show it on my page, it will load faster.
Thank you
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I was wondering if anyone can teach me how to optimize an image when a user uploads? I would like to reduce the size quality of the image so when I show it on my page, it will load faster.
Thank you
Take a look to http://www.white-hat-web-design.co.uk/articles/php-image-resizing.php, examples are very easy to follow.
Added: I recomend you to keep the source image in its original size and create the resized one in a different folder.
Added: According to documentation, the function
imagecopyresampledused by the class, does some kind of optimization:_imagecopyresampled() copies a rectangular portion of one image to another image, smoothly interpolating pixel values so that, in particular, reducing the size of an image still retains a great deal of clarity. _
Anyway, if you want more fine tune, as @mingos said, you can use ImageMagick, it’s a bit harder, but there is a lot of samples here: http://www.imagemagick.org/Usage/