35 00000CS 463121903 Pages: 2

Reg No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

Seventh semester B.Tech examinations (S), September 2020

Course Code: CS463
Course Name: DIGITAL IMAGE PROCESSING

Max. Marks: 100 Duration: 3 Hours
PARTA

Answer all questions, each carries 4 marks. Marks
1 Explain any two image interpolation techniques. (4)
2 Define the following terms i) Adjacency ii) Boundary (4)
3 List any two properties of unitary transform. (4)
4 Compare image enhancement techniques in spatial domain and frequency (4)

domain.

5 What is the significance of piecewise linear transformation functions? (4)
6 How order statistics filters are used for image enhancement? (4)
7 Define multilevel thresholding technique. (4)
8 Explain different types of edge detection methods. (4)
9 Compare erosion and dilation with an example. (4)
10 What is importance of morphological operations in image processing? (4)

PART B
Answer any two full questions, each carries 9 marks.

11 a) With a neat block diagram, explain the fundamental steps in digital image (5)

processing.
b) Compute 2D DFT for the following image segment (4)
7 3
12 a) Explain the image formation model. (5)
b) Define 1D and 2D Walsh transformation function. (4)
13 a) Describe the basic idea of sampling and quantization with a neat sketch. (5)
b) Explain 4 properties of 2D Fourier Transform. (4)

Page lof 2