Wiener Filter
The Wiener filter is a mathematical approach used in signal processing, including image processing, for the restoration or enhancement of signals that have been corrupted by noise. It is particularly effective when the statistical properties of the noise and the signal are known.
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Calculate the following for the data given below:
i) Entropy
ii) Coding redundancy of Binary code
iii) Coding redundancy of Huffman code
| Symbol: | 1 | 2 | 3 | 4 | 5 | 6 |
| Huffman code: | 0 | 10 | 110 | 1110 | 11110 | 111111 |
| Binary code: | 000 | 001 | 010 | 011 | 100 | 101 |
| Probability: | 0.4 | 0.2 | 0.2 | 0.1 | 0.05 | 0.05 |
Show that subtracting the Laplacian of an image from the image itself is proportional to the Unsharp Masking.
What is Histogram Equalization? Why is it performed? Perform histogram equalization of the following image:
Gamma Correction
Apply Discrete Fourier Transform (DFT) to the sequence (x) given below: x ={1 2 8 9}.
Verify whether the original sequence can be determined without any loss of information after Inverse Fourier Transform.
The following pattern classes have Gaussian probability functions:
w :{(1, 1)T , (3, 1)T , (3, 3)T , (1,3)T} and
w :{(5, 5)T , (7, 5)T , (7, 7)T , (5, 7)T }
Assuming that ,P(w1 ) P(w2) = obtain the equation of the Bayes’ decision boundary between these two classes.
MPP Algorithm