B.E. (Electronics & Telecommunication / Electronics & Communication Engineering) Eighth Semester (C.B.S.)

Elective - II : Digital Image Processing TKN/KS/16/7650

P. Pages : 2 *0702*

Time : Three Hours Max. Marks : 80 _____________________________________________________________________

a)

Write short notes on representation of digital images.

b)

Consider the image segment shown. Let V = {0,1} and V = {1,3} compute the length of the shortest 4, 8 and m path between p and q, if a particular path does not exists, explain the reason.

rs

pe

7

pa

2 0 1 1

1 q  2 1 2

OR

Write short notes on sampling and quantization.

6

b)

Explain spatial and Gray Level resolution.

7

a)

Explain image enhancement using arithmetic / Logic operation.

b)

The gray level histogram of an image is given below.

w

w

.p

a)

7

w

3.

1 2 2 1

ar

3 2 1 p 1

2.

6

ik sh a

1.

All questions carry marks as indicated. Solve Question 1 OR Questions No. 2. Solve Question 3 OR Questions No. 4. Solve Question 5 OR Questions No. 6. Solve Question 7 OR Questions No. 8. Solve Question 9 OR Questions No. 10. Solve Question 11 OR Questions No. 12. Due credit will be given to neatness and adequate dimensions. Assume suitable data whenever necessary. Illustrate your answers wherever necessary with the help of neat sketches.

.in

Notes : 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.

Gray Level 0 1 2 3 4 5 6 7

7

Frequency of Occurrence 300 700 1250 2500 3000 2000 550 0

Compute the gray level histogram of the output image obtained by enhancing The input by histogram equalization techniques. OR TKN/KS/16/7650

1

P.T.O

6

b)

Write and explain the full colour processing.

8

a)

Defined two dimensional DFT and its inverse.

7

b)

State and explain the properties of Discrete cosine transform (DCT). OR State and explain the properties of Hadamard transform.

7

b)

For the given orthogonal matrix A and image U. 1 1  1 2 A 1 2  ; U  1  1 3 4 Find the transformed image and basis image.

7

a)

Explain the generalized image compression model with neat block diagram.

7

b)

Explain the fidelity for digital image.

a)

OR Write short notes on lossless predictive coding model.

b)

Explain JPEG standard for image compression.

a)

Explain Hough transform in brief.

b)

Using though transform find a straight line. Given data points are. (1, 1), (1, 5), (5, 5), (5, 1) OR Write short notes on Fourier descriptors.

9.

a)

7

6 7 6 7 6

7

b)

Define shape number, what do you understand by order of a shape number ? For the given figure, obtain the shape number, and determine the order of shape number.

a)

Write short notes on Wiener filtering.

7

b)

6

a)

Write short notes on image degradation model. OR Write short notes on Noise Modelling.

b)

Write short notes on inverse filtering.

6

6

w

w

w

.p

10.

rs

8.

pe

7.

pa

a)

6.

.in

Write short notes on RGB colour model.

ik sh a

5.

a)

ar

4.

11.

12.

***********

TKN/KS/16/7650

2

7