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- W2775235460 abstract "In this paper we purposed algorithm, to enhancement the contrast and lightening of Color image .it is use to solve the problem of low lightening or non-uniform lightening. The purposed algorithm is called (Lightening Enhancement by Sigmoid Function) LESF, this algorithm consist of three parts the first Adaptive luminance enhancement second contrast enhancement and third Color restoration. This algorithm compared with other algorithm like (A new nonlinear adaptive enhancement) (NNAE), MSR( multi-scale Retinex ) and Histogram equalization (HE).when we compared this algorithm by using entropy, time , Mean Squared Error for hue(Mea-H) and Mean Squared Error for saturation(Mea-S) , we find The result of (LESF) have a good result and better visual Comparing to the other methods Keywords: Image Enhancement, adaptation sigmoid function histogram equalization , Illumination enhancement." @default.
- W2775235460 created "2017-12-22" @default.
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- W2775235460 date "2017-01-01" @default.
- W2775235460 modified "2023-09-27" @default.
- W2775235460 title "Lightness enhancement by sigmoid function" @default.
- W2775235460 hasPublicationYear "2017" @default.
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