T
Tsz Kin Tsui
Researcher at Ryerson University
Publications - 4
Citations - 261
Tsz Kin Tsui is an academic researcher from Ryerson University. The author has contributed to research in topics: Digital watermarking & Watermark. The author has an hindex of 4, co-authored 4 publications receiving 245 citations. Previous affiliations of Tsz Kin Tsui include BlackBerry Limited.
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Journal ArticleDOI
Color Image Watermarking Using Multidimensional Fourier Transforms
TL;DR: This paper presents two vector watermarking schemes that are based on the use of complex and quaternion Fourier transforms and demonstrates, for the first time, how to embed watermarks into the frequency domain that is consistent with the human visual system.
Proceedings ArticleDOI
Quaternion image watermarking using the spatio-chromatic fourier coefficients analysis
TL;DR: A new color watermarking algorithm that uses the quaternion fourier transform (QFT) to mark the La*b* components of color images is presented and an interpretation of the QFT coefficients using the Spatio-Chromatic Fourier analysis is proposed.
Proceedings ArticleDOI
Color Image Watermarking Using the Spatio-Chromatic Fourier Transform
TL;DR: A color watermarking algorithm is proposed that encodes the chromatic content of a color image as CIE a*b* chromaticity coordinates whereas the achromatic content is encoded asCIE L tristimulus value.
Color Image Watermarking Using Multidimensional
TL;DR: Two vector watermarkingschemes that are based on the use of complex and quaternion Fourier transforms are presented and it is demonstrated, for the first time, how to embed watermarks into the frequency domain that is consistent with the authors' human visual system.