增加一个白色背景，然后保存文件成PSD格式，否则就不能被置换滤镜操作。

Add a white background. After that save the file, it has to be PSD otherwise it won't work with the Displace filter.

youdao

增加一个白色背景，然后保存文件成PSD格式，否则就不能被置换滤镜操作。

Add a white background. After that save the file, it has to be PSD otherwise it won't work with the Displace filter.

youdao