Research Article

Improving Anticompression Robustness of JPEG Adaptive Steganography Based on Robustness Measurement and DCT Block Selection

Figure 4

Structure of the proposed robustness measurement model. The parameter of convolutional layers and fully connected layers are labeled on each block. “TanH” and “Leaky ReLU” represent the activation function Tanh and leaky ReLU. Generally, ReLU activation functions are not labeled.