Erfaneh Vahedi

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In this work we develop a fast facial expression recognition system with low complexity by proposing a method that does not need face detection for facial characteristics tracking. Moreover, our simple feature selection differentiates between the expressions and accelerates the systempsilas performance. In this system, selected facial feature points from(More)
In ubiquitous multimedia applications, color images are the basic components of multimedia systems. Although many research has been devoted to develop proper watermarking procedures using multiresolution-based transformation, most of these investigations faced the watermarking problem from a gray scale point of view. In this paper, different color spaces(More)
In this paper, the authors propose a new procedure for copyright protection by using a bio-inspired wavelet based data hiding approach. The proposed method takes advantage of human visual system (HVS) characteristics to provide better watermarked image quality. It also exploits visual secret sharing (VSS) technique to guarantee the security of the(More)
Although many researches have been devoted to the development of proper watermarking procedures using multiresolution-based transformation, most of these investigations encounter watermarking problems from a specific point of view. Therefore, there is a lack of a general investigation dedicated to the study of parameter selections and their impacts on the(More)
In this paper, the authors propose a new procedure for copyright protection by using a bio-inspired wavelet based data hiding approach. The proposed method takes advantage of human visual system (HVS) characteristics to provide better watermarked image quality. It also exploits visual secret sharing (VSS) technique to guarantee the security of the(More)
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