PHP Imagick 函數 previewImages()

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語法:
bool Imagick::previewImages (int $preview)
參數:這個函數接受一個參數,$preview,,其中包含預覽類型的常量。 單擊此處查看類型常量預覽列表。返回值:此函數在成功時返回 TRUE,在錯誤或失敗時返回 FALSE。錯誤/異常:發生錯誤時拋出異常ImagickException。以下程序說明了PHP中的Imagick::previewImages()函數:程序:
//將圖片源保存到變量中$imagePath = " https://cdncontribute.engineerforengineer.org/wp-content/uploads/engineerforengineer-9.png " ;
// 創建一個新的 Imagick 對象$imagick = new Imagick ( $imagePath );
// 使用 previewImages() 函數 $imagick -> previewImages (imagick::PREVIEW_EDGEDETECT); header ( " Content-Type: image / png " );
// 顯示輸出圖像echo $imagick -> getImageBlob();
?>
輸出: 鏈接: https://www.php.net/manual/en/imagick.previewimages.php

PHP Imagick 函數 previewImages() PHP: Questions

PHP Imagick 函數 previewImages() sin: Questions

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