Undetectability Parameters Estimation of the Developed Approach to Text Electron Documents Marking
The article describes the analysis and evaluation of undetectability parameters to the developed text electronic documents marking approach. A comparative analysis of existing approaches to steganographic analysis of images is carry out. The potentially best steganalysis methods applicable to the developed approach were identified. The following parameters were quantitatively evaluated: stegoanalysis resistance, data extraction reliability, information embedding ratio, image quality after watermark embedding, and watermark secrecy. In the course of the steganalysis, the embedding parameters, which characterize the developed approach as steganalysis resistant, were determined. The perceptual invisibility boundaries of embedded data to visual analysis are established. The obtained results of quantitative and qualitative estimates made it possible to establish the dependence of embedded data invisibility on data embedding parameters used.