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- W2124118034 abstract "In this paper, we present an unsharp masking-based approach for noise smoothing and edge enhancing in multichannel images. The proposed structure is similar to the conventional unsharp masking structure, however, the enhancement is allowed only in the direction of maximal change and the enhancement parameter is computed as a nonlinear function of the rate of change. The proposed scheme enhances the true details, limits the overshoot near sharp edges and attenuates noise in flat areas. Moreover the use of the control function eliminates the need for the subjective coefficient /spl lambda/ used in the conventional unsharp masking technique. Simulations results show that the processed image presents sharp edges which makes it more pleasant to the human eye. Moreover, the amount of noise in the image is clearly reduced." @default.
- W2124118034 created "2016-06-24" @default.
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- W2124118034 date "2002-11-07" @default.
- W2124118034 modified "2023-09-27" @default.
- W2124118034 title "Directional-rational approach for color image enhancement" @default.
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- W2124118034 doi "https://doi.org/10.1109/iscas.2000.856122" @default.
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