While existing watermarking attack methods can disturb the correct extraction of watermark
information, the visual quality of watermarked images will be greatly damaged. Therefore, a …

This survey presented a discussion of the existing scaling factor and adaptive scaling factor
in image watermarking schemes. The discussion included several issues: robustness …

This paper extends the traditional discrete fractional Krawtchouk transform (DFrKT) with
quaternion theory to quaternion discrete fractional Krawtchouk transform (QDFrKT) for the …

A hybrid and robust digital image watermarking is suggested by using advantages of both
frequency domain and wavelet domain. In this method, the most suitable color component of …

In the older days, watermarking has been extensively used in different forms in diverse
fields, mainly to recognize an entity's ownership. At the early stages, its analog rendition has …

Image hiding techniques include steganography and watermarking. Steganography
procedures are directed to keep the secure information from eavesdropping and …

Medical confidentiality is an essential duty in the medical profession. In this paper, we
introduce a novel robust blind watermarking method for securing the medical report in a …

In the modern era of technology, watermarking plays an important role in embedding of the
copyright information in order to provide authenticity in imperceptible and robust manner. In …

Aiming at some shortcomings of current digital watermarking algorithms, a color image
double watermarking algorithm based on content authentication and machine learning is …

This paper is presenting a novel high capacity based imperceptible and robust image
steganography technique for obscured communication. A considerable literature studied on …