Fig. 7
From: An improved hybrid image steganography method using AES algorithm

(a) Transformation of sub bytes, (b) Transformation of shift rows, (c) Transformation of mix column, (d) Transformation of add round key.
From: An improved hybrid image steganography method using AES algorithm

(a) Transformation of sub bytes, (b) Transformation of shift rows, (c) Transformation of mix column, (d) Transformation of add round key.