note 36134 modified in function.imagecopy by vincent

I've found a convenient way to "blit" one image into another. Using the following Code you can copy one image into another, leaving out the pixels with the specified transparent color. I'm using PNG but by replacing all PNG functions by JPEG or GIF functions you are able to use those formats as well: <?php $background = imagecreatefrompng("background.png"); $insert = imagecreatefrompng("insert.png"); // Either a color at a specific point on the image // imagecolortransparent($insert,imagecolorat($insert,0,0)); // or a specific color (the color I used is magenta, #ff00ff) imagecolortransparent($insert,imagecolorexact($insert,255,0,255)); $insert_x = imagesx($insert); $insert_y = imagesy($insert); // As said above, you can't use imagecopy (bug?) imagecopymerge($background,$insert,0,0,0,0,$insert_x,$insert_y,100); // imagejpeg or imagepng doesn't matter here imagejpeg($background,"",100); ?> --was-- I've found a convenient way to "blit" one image into another. Using the following Code you can copy one image into another, leaving out the pixels with the specified transparent color. I'm using PNG but by replacing all PNG functions by JPEG or GIF functions you are able to use those formats as well: <?php $background = imagecreatefrompng("background.png"); $insert = imagecreatefrompng("insert.png"); // Either a color at a specific point on the image // imagecolortransparent($insert,imagecolorat($insert,0,0)); // or a specific color (the color I used is magenta, #ff00ff) imagecolortransparent($insert,imagecolorexact($insert,255,0,255)); $insert_x = imagesx($insert_x); $insert_y = imagesy($insert_y); // As said above, you can't use imagecopy (bug?) imagecopymerge($background,$insert,0,0,0,0,$insert_x,$insert_y,100); // imagejpeg or imagepng doesn't matter here imagejpeg($background,"",100); ?> http://www.php.net/manual/en/function.imagecopy.php