Information hiding based on binary encoding methods and linear transformation scrambling techniques

Abstract

The paper proposes a hybrid method that combines a binary encoding method and a linear transformation scrambling technique to hide an image. Firstly, a linear transformation scrambling technique is used to rearrange the pixel values of a covert image to form a linear-transformation-scrambled matrix by using a certain linear transformation scrambling technique. Secondly, the linear-transformation-scrambled matrix is encoded into a host image to form an overt image by using a certain encoding method. The overt image contains seven groups of binary codes, i.e. identification codes, dimension codes, graylevel codes, linear slope codes, linear intersection codes, linear transformation scrambling times codes, and information codes. The parameters are used to encode and hide the covert image. According to the simulation results, the proposed method does well, larger image scrambling degree for the scrambled matrix, and saver computing time.