问是否有任何方法可以在html图像标记中显示GridFS格式的图像而不是使用base64编码的图像

EN

    $conn = new MongoClient('SHLY_DBSERVER');
    $db = $conn->newdb;
    $gridFS = $db->getGridFS('productImages');

       $image = $gridFS->find();
       $im_array=iterator_to_array($image);


        return $im_array;

         foreach ($im_array as $key => $value) 
          {  
           $imageFile = $value->getBytes();

           $img=base64_encode($imageFile); ?>
    <img  style="width:300px;margin-left: 5em" class="img-responsive" src="data:image/jpg;charset=utf8;base64,<?php echo $img ?>"/><br>


     }