Abstract
Contrast enhancement involves transforming the intensity
of pixels from the original state to feature significant impaction on many
display devices, including laptops, PDAs, monitors, mobile camera phones,
and so on. This paper proposes a new method to enhance the contrast of the
input image and video based on Bezier curve. In order to enhance the quality
and reduce the processing time, control points of the mapping curve are automatically
calculated by Bezier curve which performs in dark and bright regions separately.
Using the fast and accurate histogram modification allows the proposed method
to transform the intensity well for both image and video. Experimental results
demonstrate the effectiveness of the proposed method in providing a promising
enhancement outcome with low computational cost.
© 2013 IEEE
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