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    Article

    An optimal control policy to realize green cloud systems with SLA-awareness

    The power management issue has always been a critical concern in cloud computing for supporting rapid growth of data centers. In this paper, our strategy is to implement working vacation (WV) to lower and elim...

    Yen-Chieh Ouyang, Yi-Ju Chiang, Ching-Hsien Hsu in The Journal of Supercomputing (2014)

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    Chapter

    Four-Scale Image Contrast Enhancement Base on Adaptive Inverse Hyperbolic Tangent Algorithm

    A kind of contrast enhancement method for image is proposed by Four-Scale of Adaptive Inverse Hyperbolic Tangent (4SAIHT) algorithm. 4SAIHT is used to enhance the contrast of an image. In order to avoid the ex...

    Cheng-Yi Yu, Hsueh-Yi Lin, Yen-Chieh Ouyang in Recent Advances in Computer Science and In… (2012)

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    Open Access

    Adaptive Inverse Hyperbolic Tangent Algorithm for Dynamic Contrast Adjustment in Displaying Scenes

    Contrast has a great influence on the quality of an image in human visual perception. A poorly illuminated environment can significantly affect the contrast ratio, producing an unexpected image. This paper pro...

    Cheng-Yi Yu, Yen-Chieh Ouyang, Chuin-Mu Wang in EURASIP Journal on Advances in Signal Proc… (2010)

  4. Article

    Open Access

    Independent Component Analysis for Magnetic Resonance Image Analysis

    Independent component analysis (ICA) has recently received considerable interest in applications of magnetic resonance (MR) image analysis. However, unlike its applications to functional magnetic resonance ima...

    Yen-Chieh Ouyang, Hsian-Min Chen in EURASIP Journal on Advances in Signal Proc… (2008)