我有透明图像,我想覆盖整个图像以使其具有边界效果。在此代码中,它裁剪现有图像。它合并了两者,但顶部的最终结果没有显示 alpha。我怎样才能解决这个问题?
<?
$dst_x = 0; // X-coordinate of destination point.
$dst_y = 0; // Y --coordinate of destination point.
$src_x = 163; // Crop Start X position in original image
$src_y = 0; // Crop Srart Y position in original image
$dst_w = 469; // Thumb width
$dst_h = 296; // Thumb height
$src_w = 469; // $src_x + $dst_w Crop end X position in original image
$src_h = 296; // $src_y + $dst_h Crop end Y position in original image
// Creating an image with true colors having thumb dimensions.( to merge with the original image )
$dst_image = imagecreatetruecolor($dst_w,$dst_h);
// Get original image
$src_image = imagecreatefromjpeg("http://www.ucatholic.com/wp-content/uploads/2012/10/Sallixtus-631x295.jpg");
// Cropping
imagecopyresampled($dst_image, $src_image, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h);
// Saving
imagejpeg($dst_image, "images/crop.jpg");
$src = imagecreatefrompng('http://www.EdVizenor.com/images/saintCover.png');
/// THIS LINE NOT WORKING - - // Copy and merge
imagecopymerge($dst_image, $src, 0, 0, 0, 0, 469, 296, 100);
header('Content-Type: image/png');
imagegif($dst_image);
?>