Вдосконалення стеганографічного методу PVD захисту цифрових зображень шляхом корекції значень яскравості пікселів

Abstract

During the master's qualification work, the steganographic method of PVD protection of digital images was improved by correcting the brightness values of pixels. The first section analyzed the current state of information and areas that need to be protected. Steganographic protection of information, namely protection of the image by means of is considered in detail. The image is considered as a container for embedding CEV. The main methods of information protection are analyzed, the advantages and disadvantages of each of them are determined. The essence of steganography is analyzed, various steganographic methods used to protect information in the form of a digital image are considered. In the second section, an algorithm for improving the steganographic PVD method was developed. A scheme for hiding data using a multidirectional difference in pixel values based on a color image is also proposed. Experimental results have shown that the proposed scheme has a high embedding ability and acceptable invisibility as a visual image. In the third section, we chose a programming language to implement the presented method, considered all its advantages and compared it with other programming languages. The work of the program and its separate parts was also described and supplemented with fragments of the program code. In the fourth section, the commercial potential of the development was assessed and it was found that this development has a level of commercial potential above average. Based on the calculated profit, it was concluded that the financing of this development is appropriate because the payback period is less than three years.