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Adaptive and Affective Luminance Contrast on Optimal Brightness of Displays

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In this study was investigated the range of optimal luminance contrast needed to enhance user physiological comfort and psychological satisfaction while viewing displays. Diverse instances of luminance contrast were collected, of which both ambient luminance and object luminance were measured, and subjective judgment was notes for first-time viewing and after continuous viewing. The result revealed that the optimal luminance contrast is not static. The optimal ratio between ambient luminance and object luminance changes gradually as viewing time increases, and in particular, it converges into a smaller range. The optimal brightness of object luminance in a dark environment needs to be increased, whereas that in bright environments needs to be decreased. Therefore, the duration of viewing should be considered to define optimal luminance contrast, and hence a dynamically adaptive luminance contrast is proper to maintain affective viewing quality of internally lit objects such as smartphone displays and e-books.
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Document Type: Research Article

Publication date: November 3, 2014

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  • CIC is the premier annual technical gathering for scientists, technologists, and engineers working in the areas of color science and systems, and their application to color imaging. Participants represent disciplines ranging from psychophysics, optical physics, image processing, color science to graphic arts, systems engineering, and hardware and software development. While a broad mix of professional interests is the hallmark of these conferences, the focus is color. CICs traditionally offer two days of short courses followed by three days of technical sessions that include three keynotes, an evening lecture, a vibrant interactive (poster) papers session, and workshops. An endearing symbol of the meeting is the Cactus Award, given each year to the author(s) of the best interactive paper; there are also Best Paper and Best Student Paper awards.

    Please note: for Purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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