RE: [PHP] Re: Image resolution and php

Images don't have a resolution per se; display devices have a resolution. Images (the formats you're talking about, anyway) are measured in pixel width and height. The height and width in any units other than pixels of course necessitates conversion - for an easy example, a 300x300 image on a 1200x1200dpi printer will be exactly one quarter the size of the same image printed on a 300x300 dpi printer. -----Original Message----- From: Jome [mailto:jome@emoj.net] Sent: Wednesday, September 18, 2002 8:11 AM To: php-general@lists.php.net Subject: [PHP] Re: Image resolution and php > I need to get resolution information (dpi) from any > image of jpg, gif or png formats. > > It would be sufficient to obtain pixel and inches > dimension of such images and calculate resolution by > simply dividing but I haven't found any function that > gets effective dimensions in inches. http://www.php.net/manual/en/function.getimagesize.php I'm sligthly confused about what you're looking for, but the above URL *could* be something. Jome -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php