Robust Digital Image Watermarking Technique in DWT domain based on HVS and BPNN

Robust Digital Image Watermarking Technique in DWT domain based on HVS and BPNN

B.Jagadeesh [email protected] Professor E.C.E.Department G.V.P.College of Engineering (Autonomous) Visakhapatnam, AP, India.

P.Rajesh Kumar [email protected], E.C.E.Department Andhra University Visakhapatnam, AP, India.

P.Chenna Reddy [email protected], C.S.E.Department JNTUA College of Engineering, Pulivendula Kadapa, AP, India.

Abstract

Keywords:

1. INTRODUCTION

2. PRELIMINARIES

2.1 Discrete Wavelet Transformation (DWT)

FIGURE 1:

2.2 Back Propagation Neural Network (BPNN)

FIGURE 2:

3. THE PROPOSED METHOD

3.1 Watermark Embedding

3.2 Watermark Extraction

’

4. EXPERIMENTAL RESULTS

FIGURE 3:

FIGURE 4:

FIGURE 5:

Type of Attack

Qiao Baoming et al. [16] method

Proposed method

PSNR in dB NCC

PSNR in dB NCC

TABLE 1:

Type of Attack

Qiao Baoming et al.[16] method

Proposed method

PSNR in dB NCC

PSNR in dB

NCC

TABLE 2:

Type of Attack

Qiao Baoming et al. [16] method Proposed method

PSNR in dB NCC PSNR in dB

NCC

TABLE 3:

Type of attack

Watermarked image Type

Lena Peppers Mandrill

TABLE 4:

0

10

20

30

40

50

60

Lena Peppers Mandrill

PSN

R

Type of Image

Qiao Baoming et al. [16 ] Proposed

FIGURE 6:

FIGURE 7:

FIGURE 8:

FIGURE 9:

5. CONCLUSIONS

6. REFERENCES