Getting the compression rate of a jpeg image possible?
| From: | Andy | Date: | Wed, 27 Feb 2002 19:39:38 +0000 |
| Subject: | Getting the compression rate of a jpeg image possible? | ||
| Groups: | php.general | ||
| Request: | Send a blank email to php-general+get-86463@lists.php.net to get a copy of this message | ||
Hi there,
I am wondering if it is possible to get the compression rate of a jpeg
file?!
As I did read on php.net creating a jpeg gives you a third parameter with
the compression. Default is 75 %.
So asuming the user has an image compressed with 50 % and he does upload
this picture through my application, PHP will "blow" up the size by going
back to 75 %. Quality stayes the same. So it is absolutly neccessary to know
that value.
Does somebody know how to get this thing?
Thanx for your help guys,
Cheers Andy