[英]Background is turning out black
我做了一切我可能嘗試解決的問題。 我花了一個多小時研究和嘗試代碼,但沒有任何幫助。
此代碼執行以下操作。
有人可以幫助識別和修補導致黑色背景的部分嗎? 有關腳本的示例,請參閱以下URL。
$final_image = imagecreatetruecolor($dimensions, $dimensions); imagesavealpha($final_image, true); if($bgShape != '') { list($originalWidth, $originalHeight) = getimagesize('../images/' . $bgShape); $background = imagecreatefrompng('../images/' . $bgShape); imagefilter($background, IMG_FILTER_BRIGHTNESS, -255); imagefilter($background, IMG_FILTER_COLORIZE, $bgColorR, $bgColorG, $bgColorB); $backgroundImage = imagecreatetruecolor( $dimensions, $dimensions ); imagealphablending($backgroundImage , false); imagesavealpha($backgroundImage , true); imagecopyresampled($backgroundImage, $background, 0, 0, 0, 0, $dimensions, $dimensions, $originalWidth, $originalHeight ); imagecopy($final_image, $backgroundImage, 0, 0, 0, 0, $dimensions, $dimensions); /// $icon = imagecreatefrompng("../" . $icon); imagefilter($icon, IMG_FILTER_BRIGHTNESS, -255); imagefilter($icon, IMG_FILTER_COLORIZE, $iconColorR, $iconColorG, $iconColorB); $iconImage = imagecreatetruecolor( $dimensions, $dimensions ); imagealphablending($iconImage , false); imagesavealpha($iconImage , true); imagecopyresampled($iconImage, $icon, 0, 0, 0, 0, $dimensions, $dimensions, $originalWidth, $originalHeight ); imagecopy($final_image, $iconImage, 0, 0, 0, 0, $dimensions, $dimensions); /// imagealphablending($final_image, true); imagesavealpha($final_image, true); imagepng($final_image, NULL, 0, PNG_NO_FILTER); header("Content-type: image/png"); imagedestroy($backgroundImage);
將imagealphablending
設置為false,用透明色填充圖像,將imagealphablending
設置為true,然后復制。
$final_image = imagecreatetruecolor($dimensions, $dimensions);
imagealphablending($final_image, false);
$transparency = imagecolorallocatealpha($final_image, 0, 0, 0, 127);
imagefilledrectangle($final_image, 0, 0, $dimensions, $dimensions, $transparency);
imagesavealpha($final_image, true);
imagealphablending($final_image, true);
// rest of the code
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.