Image Processing : Question Paper Dec 2014 - Information Technology (Semester 7)

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Image Processing - Dec 2014

Information Technology (Semester 7)

TOTAL MARKS: 80
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Assume data if required.
(4) Figures to the right indicate full marks. 1 (a) Define Image enhancement and explain any three Point Processing Techniques.(10 marks) 1 (b) Give the classification of discrete time signal with example.(10 marks) 2 (a) Perform Histogram Equalization and draw the Histogram for the given grey levels of an image show:

Gray Level	0	1	2	3	4	5	6	7
Frequency	123	78	281	417	639	1054	816	688

(10 marks) 2 (b) Give the Classification of Discrete Time System with example.(10 marks) 3 (a) List any five properties of 1-D DFT and explain the use of any two properties.(10 marks) 3 (b) Explain smoothing and sharpening Filtering with example.(10 marks) 4 (a) For the following 4x4 image, determine its forward and inverse transforms and compare the inverse transforms with the digitized image data:
f(x,y) = [2 0 1 0; 1 0 0 1; 1 0 0 1; 2 1 2 1]
Use the following image Transforms:-
i) Hadamard Transform
ii) Discrete Cosine Transform.(12 marks) 4 (b) What is morphology? Name and explain the basic four operations of morphology?(8 marks) 5 (a) Explain in brief different Lossless digital image compression techniques.(10 marks) 5 (b) If x(n)={2, -1, 3, 0, 4};
Find:-
i) x(-n+2)
ii) x(n-1)
iii) x(2n)
iv) x(n+1)(10 marks) 6 (a) Explain Hit-or-Miss Transformation.(10 marks) 6 (b) Write a note on Hough Transform.(10 marks) 7 (a) 4-point DIT-FFT(5 marks) 7 (b) Vehicle Number plate Detection and recognition(5 marks) 7 (c) Chain Code(5 marks) 7 (d) Homomorphic filter.(5 marks)

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