1 Answer any four of the following Total Marks (80)

a) Explain the Human virtual system with processing of images (5)

b)Why is sum of coefficients of High pass filter mask zero

c)Define Hadamard transform Write Hadamard matrix for N=8

d)Explain the Steps involved in homomorphism filtering with the help of neat block diagram

e) What effect would setting to zero the lower order bit planes have on the histogram of an image in general?

Q. 2 a) Perform Histogram Equalization on Gray level distribution shown in table Draw Histograms images (10)

b)Explain image enhancement technique with transformation graphs (10)

i)Contrast stretching

ii)Grey level slicing

Q. 3 a) What are the different types of data redundancies found in digital images?Explain in detail (10)

b)Explain arithmetic coding in detail with the help of an example (10)

Q.4 a) Explain the following morphological operations with the help of an example (10)

i)Dilation

ii)Erosion

b) What is chain codes?For the figure calculate the chain code and prove that, the chain code is invariant to translation and rotation (10)

Q .5 a)Explain the properties of 2D DFT in detail. Find the DFT transform of the image segment shown below (10)

b) Explain Euclidean distance, City block distance, Chess board diistance and DM distance with the help of an example (10)

Q.6 Short notes on four of following (20)

a)JPEG encoder and decoder

b) Hough Transformer

c)Region Splitting

d) Connectivity of pixels

e) Vector Quantization