This paper proposes a novel enhancement to Histogram Equalization technique by modifying the probability density function with a padding factor to improve background contrast. The proposed method also gives better enhancement results yielding a higher level of detail in the images

1. IMPROVED HISTOGRAM EQUALIZATION FOR
IMAGE CONTRAST ENHANCEMENT
SONAL RAJ, SASWAT RAJ, SANJAY KUMAR

2. HISTOGRAM EQUALIZATION
Probability Density Function

3. HISTOGRAM EQUALIZATION
Cumulative Distribution Function

4. HISTOGRAM EQUALIZATION
Transform Function
Output Image

5. BI-HISTOGRAM EQUALIZATION
Division into two images based on
mean

6. BI-HISTOGRAM EQUALIZATION
Probability Density Function

7. BI-HISTOGRAM EQUALIZATION
Cumulative Distribution Function

8. PROPOSED ALGORITHM
Modified Probability Density

9. PROPOSED ALGORITHM
To compare 2 histograms

12. THAT’S ALL THERE IS 
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