Abstract
For the existing problems of expensive calculation in the process of image enhancement with multi-scale Retinex this paper presented an improved algorithm on the basis of fast two-dimensional convolution and multi-scale continuous estimation.Compared with the original algorithm the new one was simpler for its superiority of making full use of the separability of the image Gaussian convolution and the feasibility of multi-scale continuous illumination estimation.Meanwhile a histogram clipping method with removing extremum was proposed to deal with the color distortion of enhanced image which could restore image color information and enhance image contrast.The experimental results demonstrate that the proposed method can efficiently increase the running speed while improving image quality.
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