Another sample Question Paper

                                         M.E DEGREE EXAMINATIONS, NOVEMBER 2010

Time : 3 Hrs                                                                                                     Max. Marks: 100

Answer ALL Questions

PART A (10 x 2 = 20 Marks)

1.      Consider two pixels p and q whose coordinates are (0, 0) and (5, 5). Calculate De, D4 and D8 distances between the pixels p and q.

2.      What is meant by pixel connectivity? List some pixel connectivity measures.

3.      What is the difference between image enhancement and image restoration?

4.      What is the difference between spatial and frequency domain filtering? Which is better?

5.      What is the difference between threshold-based algorithms and edge detection algorithms?

6.      What is the need for edge linking?

7.      What is meant by multiresolution analysis?

8.      What is meant by image entropy? How is useful for image compression?

9.      What is meant by image fusion? What is the necessity for it?

10.  What is meant by digital watermarking?

PART B  ( 5 x 16 = 80 Marks)

     11. a. Consider the following image

4	4	4	4	4
3	4	5	4	3
3	5	5	5	3
3	4	5	4	3
4	4	4	4	4

Write a procedure for histogram equalization and apply equalization to the above

image.                                                                                                               (8+8)

                                        OR

b. Write a detailed algorithm for obtaining FFT?

     

11. a. Explain the concept of spatial filtering? Explain low, high and

           band-pass frequency domain filtering methods.

OR

       b. Explain in detail the construction of Wiener filter.

13. a. Explain in detail edge detection algorithms. What is the reason for edge linking algorithms?

OR

       b. Explain the region growing algorithms with an example.

14. a. Construct an arithmetic coding with the following data

Character	A	B	C	D
Probability	0.3	0.4	0.2	0.1

1. Encode the text ABCD and explain how that can be decoded.

OR

b. Explain briefly the JPEG compression standard and its various modes.

15. (A) Write short notes on:

1.      Image watermarking

2.      Image Steganography                                   (8+8)

  OR

(B) Write short notes on:

1.      Image Understanding

2.      Motion Segmentation                                   (8+8)

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