Efficient information hiding method of introducing auxiliary pixels

Abstract

The present invention provides an efficient information hiding method of introducing auxiliary pixels. The hiding capacity is irrelevant with the types of the original data and may be the image data or other data, but the hiding quantity is always fixed, so that the efficient information hiding method has the large hiding capacity and the information safety, and is easy to realize by the hardware and software. The method realizes the joint processing of the secret information and the secret keys by introducing the auxiliary pixels and optimizing the data, and a reception terminal can completely recover the secret information and recover the original data with the high quality. The method can hide the information in each pixel of the original image data, enables the hiding efficiency to be improved, breaks through the limit of the conventional method of hiding in a pixel pair (two pixels), enables any image to reach or exceed the 1 / 2 hiding capacity, when the 1 / 2 hiding capacity is realized, enables the PSNR of a carrier image to exceed 41 dB, and is better than the typical hiding methods, for example the least significant bit (LSB) and fully exploiting modification direction (FEMD) hiding methods.

Description

technical field [0001] The invention relates to a data transmission method, in particular to an efficient information hiding method introducing auxiliary pixels, and belongs to the field of communication (such as data communication technology, etc.). Background technique [0002] Data transmission and image processing are important research topics in the field of communication at present. With the development of science and technology, people's demand for high-resolution images is increasing, and data compression is imperative. Without affecting the normal business of the image, if some secret data can be hidden in it for transmission, it is equivalent to a certain amount of data compression. [0003] Information hiding, also known as steganography, can be divided into airspace information hiding and transformation domain information hiding. data, data uploaded on the ground, etc.) are hidden in the satellite remote sensing data and transmitted through the open satellite c...

AI Technical Summary

Problems solved by technology

The FEMD method can hide a bit n in a carrier pixel pair (x, y) 2 Base (n∈N, n≥2) secret information, but its maximum embedding capacity cannot be increased

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