A Logistic Map-Based Fragile Watermarking Scheme of Digital Images with Tamper Detection

Abstract

Integrity protection is one of the security mechanisms used to prevent the originality of the content from illegal manipulation. In this paper, the authors have proposed an efficient fragile watermarking scheme to localize the temper region in digital images. To ensure the image integrity, the watermark information insertion is realized into the cover image using a key matrix. A logistic map-based chaotic sequence is considered to produce both the key matrix and the watermark information. The proposed scheme is able to retain high visual quality watermarked image and can precisely detect the tampered region if the image undergoes any attack by various malicious tampering methods. The effectiveness of the proposed scheme is presented by performing various malicious tampering attacks on the watermarked images. Experimental results show that the proposed watermarking scheme has achieved the satisfactory performance. The proposed scheme gives better perceptual quality of watermarked image and low false tamper detection rates compared to some other related schemes.