F 10000CS463122101 Pages: 2

Reg No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

Seventh Semester B.Tech Degree Regular and Supplementary Examination December 2021 (2015 Scheme)

Course Code: CS463
Course Name: DIGITAL IMAGE PROCESSING

Max. Marks: 100 Duration: 3 Hours
PARTA
Answer all questions, each carries 4 marks. Marks
1 What are the different types of digital images? (4)
2 What is meant by Moire patterns and aliasing in imaging?. (4)
3 Define 1D and 2D Discrete Fourier transformation function. (4)
4 Explain the following gray level transformations: (4)
i. Image Negatives. 11, Logarithmic.
5 Define histogram equalization and histogram matching. (4)
6 Write basic steps for filtering in the frequency domain. (4)
7 What are the various types of thresholding ? (4)
8 Write steps for edge detection. (4)
9 Explain the morphological operations dilation and erosion. (4)
10 Define Chain Codes. (4)
PART ‏تا‎

Answer any two full questions, each carries 9 marks.
11 a) With a neat block diagram, explain the major components of an image (9)

processing system?

12 a) Apply Walsh Transform on the image (5)
3 2 1 2
= 1 3 1 2
4 1 2 1
3 2 3 4
b) Give general form of 2-1) linear transforms. (4)
13 a) Explain i) Euclidean distance (6)

ii) D4 distance
iii) Dg distance

b) State separable and identical property of 2D DCT. (3)

Page | of 2