Abstract—An image watermarking is the process of
authenticating a digital image by embedding a watermark into it
and protecting the image from copyright violation. This paper
proposes a new fragile watermarking scheme developed in a
wavelet domain based on the discrete wavelet transform and
Arnold scrambling algorithm. The original watermark image is
transformed into wavelet domain by applying discrete wavelet
transform, subsequently the high frequency coefficients which
in form of an edge feature image of wavelet transformed image
is transformed into binary watermark image by using
thresholding method. The binary watermark image is embedded
into host image by modifying Arnold scrambling algorithm. The
proposed method encompasses three phases including
watermark generation phase, watermark embedding phase and
tamper detection and localization phase. Experimental results
show that the proposed method has satisfactory protection
ability and can detect and locate various malicious tampering
efficiently. The invisibleness and robustness of the propose
method is evaluated by using well known indices including peak
signal to noise ratio index and normalized correlation index.
Index Terms—Arnold scrambling, discrete wavelet transform,
edge feature image, fragile watermarking scheme, tamper
detection.
K. Khankasikam is with the Department of Applied Science, Faculty of
Science and Technology, Nakhon Sawan Rajabhat University, Muang
Nakhon Sawan, 60000, Thailand (tel.: +66-81688-0066; e-mail:
KrisdaK@gmail.com).
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Cite: Krisda Khankasikam, "A New Fragile Watermarking Scheme Based on Wavelet Edge Feature," International Journal of Future Computer and Communication vol. 4, no. 4, pp. 270-274, 2015.
