NEW CONTRAST MEASURE FOR TRANSFORM BASED IMAGE ENHANCEMENT

The goal of image enhancement is to improve the image quality so that the resultant image is better than the original image for a specific application or set of objectives [7]. Proposed are new contrast measure and novel image enhancement algorithms. The contrast measure is derived from Michelson’s law of the human visual system and is used in spatial domain. Proposed algorithms performances are quantitatively compared the one of the best transform based image enhancement algorithm: α – rooting. The fundamental advantages of these algorithms are: a) They perform “better” than modified α –rooting; b) they can be used for enhancement the images in the decompression stage, c) They can be used for automatically choosing the best enhancement method, and the best parameters.

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