Calicut University 2006 B.Tech Electronics and Communications Engineering IMAGE PROCESSING - Question Paper

EIGHTH SEMESTER B.TECH. (ENGINEERING) DEGREE
EXAMINATION, JUNE 2006
EC 2K 805 D--IMAGE PROCESSING
Time : 3 Hours
ans all ques..
Maximum : 100 Marks

Part A
1. (a) Explain what is meant by point spread function.

(b) Explain what is meant by modulation transfer function.

(c) Explain what is meant by luminance and brigthness.

(d) Explain briefly about image sampling.

(e) State the properties of 2-D DFT

(f) Explain the properties of median filtering.

(g) Explain what is meant by pseudoinverse filtering.

(h) What is Pixel coding ? discuss.

Part B

2. (a) Draw the block diagram of basic image processing system and discuss function of every block
in detail.
Or
(b) Define 2-D Four-er transform and discuss its properties.

3. (a) Draw the block diagram of monochrome vision model and discuss in detail with frequency
response.(9 marks)
ii Explain co'.vur matching using 3 primary sources. (6 marks
Or
(b) (i)Explain the limitations of practical sampling and reconstruction systems. (8 marks)
ii) Explain what is meant by optimal sampling of random images. (7 marks)

4. (a) Explain how discrete cosine transform of an image can be calculated using DFT.
Or
(b) Discuss the different point operations performed for image enhancement.

5. (a) Explain the image restoration scheme using inverse filtering. elaborate its limitations ?
Or
(b) Explain in detail the transform coding technique with neat block diagram.
[15*4=60]

Earning:   Approval pending.