Re: Importing a GIF image and making it transparent

Hi Chris, Thanks for the speedy reply. In the GD section here http://www.bsch.au.com/admin/phpinfo.php it says "GIF support - enabled" I'm starting to wonder though if PHP can do this? I looked up the imagecolourtransparent function on the PHP site and it says: int imagecolortransparent (int im [, int col]) ImageColorTransparent() sets the transparent color in the im image to col. Im is the image identifier returned by ImageCreate() and col is a color identifier returned by ImageColorAllocate(). Note "Im is the image identifier returned by ImageCreate()" - does this mean this function only works with images PHP has created? ----- Original Message ----- From: "Chris Lambert" <chris@php.net> To: "Ben Quinn" <benquinn@optushome.com.au> Cc: <php-general@lists.php.net> Sent: Tuesday, August 21, 2001 4:49 PM Subject: Re: [PHP] Importing a GIF image and making it transparent > It doesn't look like you'll be able to use GD, as GIF support was dropped in > 1.6 and JPEG support was only added in 1.8. You'd have to experiment with > ImageMagick, or another command-line tool independent of PHP. > > /* Chris Lambert, CTO - chris@whitecrown.net > WhiteCrown Networks - More Than White Hats > Web Application Security - www.whitecrown.net > */ > > ----- Original Message ----- > From: Ben Quinn <benquinn@optushome.com.au> > To: <php-general@lists.php.net> > Sent: Tuesday, August 21, 2001 2:23 AM > Subject: [PHP] Importing a GIF image and making it transparent > > > | Hi all > | > | I've been trying to make a script that imports a GIF image from an > external > | server (i have permission to do this, see below) and designates a certain > | colour transparent for some time now and i'm not having much luck. Can > | anyone help or provide a script that does this? > | > | The images i'm using are Australian weather radar images with a rather > plain > | brown background > | > | http://mirror.bom.gov.au/radar/IDR503.gif > | > | What i'd like to do is have an orographic map for the background, like > this > | > | http://www.bsch.au.com/temp/preview.jpg > | > | The radar images are available to the public and i have permission to make > | these alterations > | > | Is it possible for PHP to download a GIF image (through HTTP), designate a > | certain colour transparent and then display the image on the screen > without > | saving the image to the server? > | > | Any help i can get with this would be much appreciated > | > | > | > | > | -- > | PHP General Mailing List (http://www.php.net/) > | To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net > | For additional commands, e-mail: php-general-help@lists.php.net > | To contact the list administrators, e-mail: php-list-admin@lists.php.net > | > | > | > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net > For additional commands, e-mail: php-general-help@lists.php.net > To contact the list administrators, e-mail: php-list-admin@lists.php.net > >