我使用下面的代碼,但對於transaparent圖像編寫的代碼在PHP中的水印製作圖像,黑色背景來了:黑色背景快到了透明的圖像,同時在PHP
$font_path = $_SERVER['DOCUMENT_ROOT'] . "/fonts/arial.ttf"; // Font file
$water_mark_text_2 = "IndustrialStores.com"; // Watermark Text
list($owidth,$oheight) = getimagesize($oldimage_name);
$width = $owidth;
$height = $oheight;
$image = imagecreatetruecolor($width, $height);
$extension = pathinfo($oldimage_name, PATHINFO_EXTENSION);
$extension = strtolower($extension);
if($extension=="jpg" || $extension=="jpeg"){
$image_src = imagecreatefromjpeg($oldimage_name);
}
else if($extension=="png"){
$image_src = imagecreatefrompng($oldimage_name);
}
else if($extension=="gif"){
$image_src = imagecreatefromgif($oldimage_name);
}
else if($extension=="bmp"){
$image_src = imagecreatefrombmp($oldimage_name);
}
else{
copy($oldimage_name, $new_image_name);
unlink($oldimage_name);
return true;
}
imagecopyresampled($image, $image_src, 0, 0, 0, 0, $width, $height, $owidth, $oheight);
$blue = imagecolorallocate ($image, 179, 179, 179);
$bbox = imageftbbox($width/15, 0, $font_path, 'IndustrialStores.com');
$x = $bbox[0] + (imagesx($image)/2) - ($bbox[4]/2);
$y = $bbox[1] + (imagesy($image)/2) - ($bbox[5]/2) - 5;
imagettftext($image, $width/15, 0, $x, $y, $blue, $font_path, $water_mark_text_2);
imagejpeg($image, $new_image_name, 100);
imagedestroy($image);
unlink($oldimage_name);
我已經嘗試過許多其他答案StackOverflow的來回就像使用:
$im = imagecreatetruecolor(55, 30);
$red = imagecolorallocate($im, 255, 0, 0);
$black = imagecolorallocate($im, 0, 0, 0);
// Make the background transparent
imagecolortransparent($im, $black);
但沒有使用這一切
我已經嘗試過,答案,但它不工作 – user3438880