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Based on the physical model of fogged images, a new method is proposed to enhance the visibility of a single image adaptively. In order to restrain the edge halation produced by virtual air light defogging method, the concept of neighboring pixel's relative depth information is brought up. Input images may have different extent of disturbance of fog or haze, and they need different strength of defogging...
This paper presents a new probabilistic local binary pattern (PLBP), an extension of existing local binary pattern (LBP), for face verification. Unlike LBP employing the sign of the difference to express the result of comparing two pixels, PLBP employs probability to express it. The advantage is that it can encode the magnitude of the difference, which is useful for face verification but is ignored...
Global gray-level thresholding techniques such as Otsupsilas method, and local gray-level thresholding techniques such as adaptive thresholding method are powerful in extracting character objects from simple or slowly varying backgrounds. However, they are found to be insufficient when the backgrounds include sharply varying contours or fonts in different sizes. In this paper, we propose a double-edge...
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