journal6 ›› 2015, Vol. 36 ›› Issue (1): 40-45.DOI: DOI:10.3969/j.issn.1007-2985.2015.01.010

• Physics and Computer • Previous Articles     Next Articles

Multi-scale Retinex Algorithm for the Foggy Image Enhancement Based on Sub-band Decomposition

 SHU  Ting, LIU  Yao-Feng, DENG  Bo, TAN  Ya-Peng, CHEN  Bing-Quan   

  1. (College of Physics and Mechanical & Electrical Engineering,Jishou University,Jishou 416000,Hunan China)
  • Online:2015-01-25 Published:2015-01-29

Abstract: A kind of Multi-Scale Retinex (MSR) algorithm based on sub-band decomposition for image enhancement was proposed.First,the improved MSR algorithm was used to deal with the foggy image.Then,the gain of the different foggy image was obtained by the sub-band decomposition method.After that,the clear and enhanced image was obtained by the image fusion technology.At the same time,the simulation results of the algorithm was analyzed by using the mean value,standard deviation,entropy and mean square error (MSE) and peak signal-to-noise ratio (PSNR).The simulation and evaluation results show that the contrast of image is increased,the useful information of the original image is retained,the degree of distortion is small,and the clarity of the image can be improved.

Key words: sub-band decomposition, Retinex algorithm, sub-band decomposition multi-scale retinex (SDMSR), mean value, standard deviation, mean squared error(MSE), peak signal-to-noise ratio(PSNR)

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