A literal image was the secret message and a still image was the cover message.

以二值文字图像为待隐藏的秘密信息，以静止图像为隐秘载体。

youdao

A literal image was the secret message and a still image was the cover message.

以二值文字图像为待隐藏的秘密信息，以静止图像为隐秘载体。

youdao