Color image watermarking has achieved great success in various applications such as copy
protection, content authentication, tamper detection and recovery, etc. The present paper …

With evolution of digital technology, it is challenging to protect personal data from access
without consent. Digital watermarking conceals some information as watermark to protect …

With the rapid growth of data transmission technology, image encryption is becoming a
widely discussed topic in the field of information security. In this paper, we introduce a novel …

In this paper, a new combination chaotic system (NCCS) is proposed for image encryption.
The proposed system has larger key space and exhibits better cryptographic features in …

This paper proposes a new blind watermarking algorithm, which embedding the binary
watermark into the blue component of a RGB image in the spatial domain, to resolve the …

In this paper, a robust blind watermarking technique, based on block-based DCT coefficient
modification is proposed. The difference between two DCT coefficients of the adjacent …

This paper presents a chaotic encryption-based blind digital image watermarking technique
applicable to both grayscale and color images. Discrete cosine transform (DCT) is used …

This study presents a robust and transparent watermarking method that exploits block-based
discrete cosine transform (DCT) coefficient modification. The difference in the DCT …

Electronic transmission of the medical images is one of the primary requirements in a typical
Electronic-Healthcare (E-Healthcare) system. However this transmission could be liable to …

This work presents a blind and robust scheme using YCbCr color space, IWT (integer
wavelet transform) and DCT (discrete cosine transform) for color image watermarking …