Robust watermarking algorithm for digital images using discrete wavelet and probabilistic neural network
TLDR
Experimental results reveal that the proposed watermarking algorithm yields watermarked images with superior imperceptibility and robustness to common attacks, such as JPEG compression, rotation, Gaussian noise, cropping, and median filter.Abstract:
Digital watermarking, which has been proven effective for protecting digital data, has recently gained considerable research interest. This study aims to develop an enhanced technique for producing watermarked images with high invisibility. During extraction, watermarks can be successfully extracted without the need for the original image. We have developed discrete wavelet transform with a Haar filter to embed a binary watermark image in selected coefficient blocks. A probabilistic neural network is used to extract the watermark image. To evaluate the efficiency of the algorithm and the quality of the extracted watermark images, we used widely known image quality function measurements, such as peak signal-to-noise ratio (PSNR) and normalized cross correlation (NCC). Results indicate the excellent invisibility of the extracted watermark image (PSNR=68.27dB), as well as exceptional watermark extraction (NCC=0.9779). Experimental results reveal that the proposed watermarking algorithm yields watermarked images with superior imperceptibility and robustness to common attacks, such as JPEG compression, rotation, Gaussian noise, cropping, and median filter.read more
Citations
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Journal ArticleDOI
Survey of robust and imperceptible watermarking
TL;DR: The paper introduces elementary concepts of digital watermarking, characteristics and novel applications of watermark in detail, and various analysis and comparison of different notable water marking techniques are discussed in tabular format.
Journal ArticleDOI
Digital watermarking : applicability for developing trust in medical imaging workflows state of the art review
TL;DR: A survey of medical images watermarking is presented and offers an evident scene for concerned researchers by analysing the robustness and limitations of various existing approaches.
Proceedings ArticleDOI
Wavelet Based Digital Watermarking Scheme for Medical Images
Mukesh Soni,Dileep Kumar +1 more
TL;DR: A wavelet based digital watermarking scheme for medical images using three level DWT and BCH coding is suggested, which can be used to the medical practitioners for accurate decisions.
Journal ArticleDOI
Image watermarking using soft computing techniques: A comprehensive survey
TL;DR: Soft computing based watermarking approaches providing robustness, imperceptibility and good embedding capacity are compared systematically and major issues and potential solutions for soft computing-basedWatermarking are discussed to encourage further research in this area.
Journal ArticleDOI
A New Blind Medical Image Watermarking Based on Weber Descriptors and Arnold Chaotic Map
TL;DR: A new watermarking technique for medical image is presented, consisting in combining the DCT transform, Weber descriptors (WDs) and Arnold chaotic map, and a new embedding and extracting technique is proposed, based on WDs without any loss by selecting the right coefficients.
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