我正在尝试将图像的背景颜色从白色更改为透明,然后将其用作遮罩以覆盖另一张图像。(不能是透明的,因为另一部分被用作另一个图像的蒙版)......图层很有趣:)
完整代码:
<?
include '../includes/db.php';
include '../includes/checks.php';
$type = $_GET['t']; //shirt | shorts
$style = $_GET['s'];
$z = $_GET['z']; // home | away
$a = $_GET['a'];
$b = $_GET['b'];
$aR = hexdec($a['0'].$a['1']);
$aG = hexdec($a['2'].$a['3']);
$aB = hexdec($a['4'].$a['5']);
$bR = hexdec($b['0'].$b['1']);
$bG = hexdec($b['2'].$b['3']);
$bB = hexdec($b['4'].$b['5']);
// main top
$imgname = '../images/kits/test/'. $uTime .'.png';
$im = imagecreatetruecolor( 100, 100);
$red = imagecolorallocate($im, $aR, $aG, $aB);
imagefill($im, 0, 0, $red);
$mask = imagecreatefrompng('../images/kits/test/6-space.png');
imagecopyresampled($im, $mask, 0, 0, 0, 0, imagesx($im), imagesy($im), imagesx($mask), imagesy($mask));
imagedestroy($mask);
$mask = imagecreatefrompng('../images/kits/test/4-shadows.png');
imagecopyresampled($im, $mask, 0, 0, 0, 0, imagesx($im), imagesy($im), imagesx($mask), imagesy($mask));
imagedestroy($mask);
$mask = imagecreatefrompng('../images/kits/test/1-tag.png');
imagecopyresampled($im, $mask, 0, 0, 0, 0, imagesx($im), imagesy($im), imagesx($mask), imagesy($mask));
imagedestroy($mask);
// design
$im2 = imagecreatetruecolor( 100, 100);
$red = imagecolorallocate($im2, $bR, $bG, $bB);
imagefill($im2, 0, 0, $red);
$mask = imagecreatefrompng('../images/kits/test/5-logo.png');
imagecopyresampled($im2, $mask, 0, 0, 0, 0, imagesx($im2), imagesy($im2), imagesx($mask), imagesy($mask));
imagedestroy($mask);
imagecolortransparent($im2, imagecolorallocatealpha($im2, 0, 0, 0, 127));
imagealphablending($im2, false);
imagesavealpha($im2, true);
$white = imagecolorallocate($im2,255,255,255);
imagecolortransparent($im2, $white);
// merge and result
imagecopyresampled($im, $im2, 0, 0, 0, 0, imagesx($im), imagesy($im), imagesx($im2), imagesy($im2));
imagepng($im, $imgname);
imagedestroy($im2);
imagedestroy($im);
echo '<img src="', $imgname ,'">';
?>