Digital image authentication algorithm based on the source characteristics of higher-order statistics

Keywords: digital forensics; privacy analysis; JPEG

low-pass and high-pass filter along the axis of the picture image is decomposed into detail, vertical, horizontal and diagonal components. Each successive level of decomposition is higher level of detail components of recursive filtering through the formation.[1] Here, for a true color image, the i-level, c color channel vertical, horizontal, and diagonal components are represented by V y H x yi

c i c( ,x ) ( , )

and D yi c ( ,x ). Figure 2 is a schematic diagram lena

three wavelet coefficients of the amplitude.