how can I do this? I have an image 50x50 and I would like to generate one with 100x100, where the original 50x50 will be centered inside of that one. The rest would be filled with "transparent". Thanks
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- doudg60800 2010-03-21 17:18关注
This is how you do it:
$old = imagecreatefromjpeg("old_image.jpg"); // Create a 100x100 image $im = imagecreatetruecolor(100, 100); $black = imagecolorallocate($im, 0, 0, 0); // Make the background transparent imagecolortransparent($im, $black); // Copy old image on top of new image imagecopy($im, $old, 25, 25, 0, 0, 50, 50); // Save the image imagepng($im, './new_image.png'); imagedestroy($im);
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