GTU Electronics and Communication Engineering (Semester 8)
Fundamentals of Image Processing
June 2014
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


1 (a) Draw and explain structure of Human eye and discuss human vision system.
7 M
1 (b) Draw and explain basic block diagram of image processing system.
7 M

2 (a) Write short note on point processing for spatial domain enhancement.
7 M
2 (b) What is histogram? Explain histogram equalization algorithm.
7 M
2 (c) Compare and contrast average filtering and median filtering.
7 M

3 (a) Discuss steps of image filtering in frequency domain. Discuss 2D discrete Fourier transform with help of equation.
7 M
3 (b) Write MATLAB code for homomorphic filtering on square image.
7 M
3 (c) Explain a linear image degradation model, an inverse restoration filter and its Limitations.
7 M
3 (d) List advantages and disadvantages of the wiener filter.
7 M

4 (a) What are different ways of region based segmentation? Explain anyone with an example.
7 M
4 (b) What is the purpose of Hough transform? Write steps of Hough transform for XY plane. Which problem occurs in Hough transform in XY plane for vertical line?
7 M
4 (c) Find the Huffman code for the following stream of data.
{1,1,1,1,1,1,1,2,2,2,2,2,2,3,3,3,3,3,4,4,4,4,5,5,5,6,6,7}
7 M
4 (d) Explain JPEG compression algorithm with an example.
7 M

5 (a) Explain dilation and erosion morphological operations.
7 M
5 (b) Explain thinning and thickening operations on the digital image.
7 M
5 (c) Which are different color models? Explain any one in detail.
7 M
5 (d) Write a short note on Pseudo-colouring.
7 M



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