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Image Processing : Question Paper May 2016 - Information Technology (Semester 7) | Mumbai University (MU)

Image Processing - May 2016

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) show that High pass=original-low pass(5 marks) 1(b) How contrast stretching is different than thresholding(5 marks) 1(c) Explain Digital water marking and its application(5 marks) 1(d) Explain Discrete time system(5 marks) 2(a) Find DFT of the image

0 1 2 1
1 2 3 2
2 3 4 3
1 2 3 2
(10 marks) 2(b) Explain HIT and Miss Transform(10 marks) 3(a) Calculate the direction of the edge at the center point of the image $$I=\begin{matrix} [50& 60 &70 \\ 5 & 50 & 80 \\ 7 & 9 & 50] \end{matrix}$$(10 marks) 3(b) Explain various frequency domain low pass filters in detail(10 marks) 4(a) Perform histogram stretching so that new image has a dynamic range of [ 0,7]
Grey level 0 1 2 3 4 5 6 7
No.of pixels 100 90 85 10 0 0 0 0
(10 marks)
4(b) Differentiate between point operation and neighbourhood operations(10 marks) 5(a) Compare lossless and lossy compression techniques.(10 marks) 5(b) Explain application of image processing in digital watermarking.(10 marks) 6(a) For the given 3 bit, 4×4 size image perform the following operations
i) thresholding
ii) bit plane sllcing for LSB and MSB planes
(10 marks)
6(b) Explain waish and wavelet transform(10 marks)

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