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A geometric attack resistant image watermarking scheme based on invariant centroids
(University of Nairobi, 2007)
A digital image watermarking scheme that uses invariant centroids to detect and correct geometric attacks is proposed. The centroids are determined by computing a convergent geometric moment of a circular region of a ...
A Colour Image Watermarking Technique Resistant To Affine Geometric Attacks
(University of Nairobi, 2013-09)
This paper presents a colour image watermarking scheme resistant to affine geometric distortions. The technique involves embedding of the watermark in the host image in the Discrete Cosine Transform (DCT) domain in a ...
A Compromise Method for the Design of Parametric Polynomial Surrogate Models
(2005)
This study presents a compromise approach to augmentation of response surface (RS) designs to achieve the desired level of accuracy. RS are frequently used as surrogate models in multidisciplinary design optimization of ...
Concrete Practices in Kenya
(2001)
Towers are typical structures that can be found in many urban and rural landscapes the world over. From their basic design, they are usually exposed to severe environmental loads. It is therefore prudent to carry out ...