M.Sc. DEGREE EXAMINATION, NOVEMBER 2017
Third Semester
Electronics
Elective — DIGITAL IMAGE PROCESSING
(CBCS 2015 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all the questions.
1. What do you mean by gray level?
2. What is meant by illumination and reflectance?
3. What is the need for transform?
4. Define Fourier transform pair.
5. Define histogram.
6. What are the effects of applying Butterworth low pass
filter to the noisy image?
7. What is degradation function?
8. What is pseudo inverse filter?
9. What are two main types of data compression?
10. What is meant by Shannon's theorem?
Sub. Code
5MEL5E3
AFF-5073
2
Wk 14
Part B x 5 25)
Answer all the questions.
11. Explain the structure of the Human eye.
Or
Discuss the imaging geometry.
12. Discuss the Hadamard transform.
Or
Describe the Fast Fourier Transform.
13. Distinguish between spatial domain techniques
and frequency domain techniques of image
enhancement.
Or
Explain the process of image smoothing using low
pass filtering.
14. Discuss the degradation model for continuous
functions.
Or
Explain how the blur is removed that caused by
uniform linear motion.
15. Write note on interpixel redundancy.
Or
With neat diagram explain the channel encoder and
decoder.
AFF-5073
3
Wk 14
Part C x 10 30)
Answer any three questions.
16. Describe the fundamental steps in digital image
processing with neat diagram.
17. Explain discrete cosine transform in detail.
18. Explain the image subtraction and image averaging in
detail.
19. Explain the procedure used for diagonalization of
circulant and block circulant matrices.
20. Explain the block diagram of the transform coding
technique.
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