Image compression and reversible data hiding method based on high bit plane prediction

The invention provides an image compression and reversible data hiding method based on high-bit plane prediction, which comprises the following steps that: an image owner completes image lossless compression based on a pixel predicted value and high-bit plane prediction, and embeds auxiliary data into a data embedding space; after the image decompression side decompresses and recovers the high bit plane data, the original image can be recovered in a lossless manner; a cloud data embedder can extract auxiliary data according to the secret key and position a reserved data embedding space, and then data embedding is completed to obtain a secret-carrying encrypted image; and the authorized receiver can correctly extract embedded data or losslessly recover an original image according to the owned key permission. According to the method, lossless compression and decompression of the image can be realized, high-capacity reversible information hiding of the encrypted image can also be realized, and the protection of