Question

Problem 1. (20 points) Given a histogram from an image with 8 gray levels as shown 1) Use histogram equalization to find a mapping function between input pixel values and output pixel values. 2) Plot the histogram of the output image after histogram equalization. 3) Suggest another image enhancement tool that can also improve the appearance of this image. probability 0.30- 0.25 0.20 0.15 0.10 0.05 0 1 2 3 4 5 6 7 pixel value

          Problem 1. (20 points) Given a histogram from an image with 8 gray levels as shown
1) Use histogram equalization to find a mapping function between input pixel values and
output pixel values.
2) Plot the histogram of the output image after histogram equalization.
3) Suggest another image enhancement tool that can also improve the appearance of this
image.
probability
0.30-
0.25
0.20
0.15
0.10
0.05
0 1 2 3 4 5 6 7
pixel value

Problem 1. (20 points) Given a histogram from an image with 8 gray levels as shown
1) Use histogram equalization to find a mapping function between input pixel values and
output pixel values.
2) Plot the histogram of the output image after histogram equalization.
3) Suggest another image enhancement tool that can also improve the appearance of this
image.
probability
0.30-
0.25
0.20
0.15
0.10
0.05
0 1 2 3 4 5 6 7
pixel value

Added by Shane Y.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Gopal Sharma

Step 1

The CDF is calculated by summing up the probabilities of each gray level from left to right. For the given histogram, the CDF would be: CDF(0) = 0.30 CDF(1) = CDF(0) + 0.25 = 0.55 CDF(2) = CDF(1) + 0.20 = 0.75 CDF(3) = CDF(2) + 0.15 = 0.90 CDF(4) = CDF(3) + 0.10 Show more…

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Problem 1. (20 points) Given a histogram from an image with 8 gray levels as shown: 1) Use histogram equalization to find a mapping function between input pixel values and output pixel values. 2) Plot the histogram of the output image after histogram equalization. 3) Suggest another image enhancement tool that can also improve the appearance of this image. Probability: 0.30 0.25 0.20 0.15 0.10 0.05 0 1 2 3 4 5 6 Pixel value