Method of Forensic Research on Image for Finding Touch up on the Basis of Noise Entropy

This article discusses the methodology for determining the installation of digital images based on the entropy of noise. The distortion of the background noise occurs in certain cases (photomontage, retouching, etc.) in the corresponding areas of the image when digital editing tools are applied to it. Image studies were considered based on noise entropy analysis in order to identify retouching based on Comparison of the results of evaluating the level of clustering of the noise map of the investigated (retouched) fragment with the corresponding indicator of the control (original) image fragment.