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Recently, considerable research has been done to reduce the gap between direct observation of a scene and its recorded image. Typically the differences exist because of the high dynamic range compression capability of the human visual systems, and its capacity for color constancy. In this paper we define a new method that provides dynamic range compression, color consistency and color rendition for...
This paper proposes a novel wavelet based nonlinear image enhancement algorithm, including dynamic range compression, contrast enhancement and color restoration, for recorded images in non-uniform and uniform-dark lightning conditions. Dynamic range compression (DRC) has been applied by nonlinear function for enhancing dark and reducing the intensity of bright regions. The intensity has been tuned...
This paper presents a new efficient technique for color enhancement in the compressed domain. In the proposed technique the enhancement computation is performed in three steps, namely, adjustment of dynamic range of brightness values, preservation of local contrast and preservation of color with all computations involving scaling of the DCT coefficients. Further special care has been taken for reducing...
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