Improved histogram equalization for image contrast enhancement

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IMPROVED HISTOGRAM EQUALIZATION FOR IMAGE CONTRAST ENHANCEMENTSONAL RAJ, SASWAT RAJ, SANJAY KUMAR

HISTOGRAM EQUALIZATION

Probability Density Function

Cumulative Distribution Function

Transform Function

Output Image

BI-HISTOGRAM EQUALIZATION

Division into two images based on mean

Probability Density Function

Cumulative Distribution Function

PROPOSED ALGORITHM

Modified Probability Density Function

PROPOSED ALGORITHM

To compare 2 histograms

THAT’S ALL THERE IS

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