Table 3 The conditional possibility (%) of change step c based on the quantized DCT coefficient value v
From: Robust JPEG steganography based on the robustness classifier
v | c | ||||
|---|---|---|---|---|---|
−2 | −1 | 0 | 1 | 2 | |
    −3 | 0 | 0.01 | 99.97 | 0.01 | 0 |
    −2 | 0 | 0.02 | 99.75 | 0.21 | 0.018 |
    −1 | 0 | 0.005 | 99.59 | 0.41 | 0 |
    0 | 0 | 0 | 100 | 0 | 0 |
    1 | 0 | 0.41 | 99.59 | 0.005 | 0 |
    2 | 0.025 | 0.21 | 99.74 | 0.02 | 0 |
    3 | 0 | 0.01 | 99.97 | 0.01 | 0 |