把照片转为黑白，背景改为纯黑并保持人物完全不变。中文版英文版将其变为黑白图像。将背景变为纯黑色，使所有元素和谐融合。人物保持完全不变。Turn it into a black & White image. Make the background solid black. So everything blends nicely. Keep the person exactly the same.