Digital Image Steganography Using LSB Substitution, PVD, and EMD

Figure 10

PDH analysis for proposed technique 2 (Type 1 and Type 2).

(a) Proposed 7 PVD + 3 LSB + EMD (Type 1)

(b) Proposed 7 PVD + 3 LSB + EMD (Type 2)

(c) Proposed 7 PVD + 3 LSB + EMD (Type 1)

(d) Proposed 7 PVD + 3 LSB + EMD (Type 2)