DWT versus DCT Based Hybrid Steganography and Watermarking Technique for Color Image Encryption.

Abdellatef, Essam; Fath Allah, M. I.

doi:10.21608/sisj.2024.371236

	DWT versus DCT Based Hybrid Steganography and Watermarking Technique for Color Image Encryption.
Sinai International Scientific Journal
Volume 1, Issue 1, July 2024, Page 33-57 PDF (967.45 K)
Document Type: Original Article
DOI: 10.21608/sisj.2024.371236
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Authors
Essam Abdellatef ¹; M. I. Fath Allah²
¹Electrical Engineering Department, Faculty of Engineering, Sinai University, El-Arish Campus
²1Electrical Engineering Department, Faculty of Engineering, Suez University, Suez, Egypt
Abstract
Comprehensive studies have been done to develop strong encryption technology, which plays a vital role in multimedia transmission and communications. High robustness against various types of attacks is the main requirement of any encryption method. Many algorithms have been suggested for encryption, but most of them suffer from weak efficiency. In this paper, two proposed algorithms for color image encryption will be provided to get high robustness against composite attacks with improved performance. The composite attacks might be in one of two different forms: friendly or hard. Encryption techniques could be represented by hybrid of steganography and watermarking. Discrete Wavelet Transform (DWT) and Discrete Cosine Transform (DCT) have been used for image transformation with the proposed techniques. After intensive comparative studies with some traditional methods, it has been got that the new algorithms have given better performance over that of the traditional ones.
Keywords
Image encryption; Steganography; and Watermarking


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