Multimedia Security

9	Authentication of JPEG Images Based on Genetic Algorithms
Venkata Gopal Edupuganti and Frank Y. Shih

CONTENTS

9.1    Introduction

9.2    Ga-Based Watermark-Embedding Method

9.2.1    Overall Watermark-Embedding Procedure

9.2.2    Authentication Information Generation

9.2.2.1    Cyclic Redundancy Checksum

9.2.3    Adjustment by GA

9.2.3.1    Substitution of Chromosome in the Original Block

9.2.3.2    Objective Function for chromosome Evaluation

9.2.3.3    GA to Adjust the Block

9.3    Authentication

9.4    Experimental Results

9.5    Conclusions

References

9.1    INTRODUCTION

Digital images are transmitted more often over the Internet now than ever before. Unfortunately, free-access digital multimedia communication provides virtually ...