At present, this framework is still under development, and the invisible watermark only implements the LSB spatial domain. LSB is very poorly robust and does no

At present, this framework is still under development, and the invisible watermark only implements the LSB spatial domain. LSB is very poorly robust and does not support lossy compression, so I am going to make a watermark added to the frequency domain in the next step. For an Android framework, I think it is enough to provide these two interfaces.