Digital Signal and Image Processing (DSIP) Semester 7 (3 Hours) May 2009

Digital Signal and Image Processing (DSIP) Semester 7 (3 Hours) May 2009
VR-4752 [Total Marks : 100]
N.B:	(1)	Question no 1 is compulsory.
	(2)	Attempt any four out of remaining six questions.
	(3)	Assume suitable data wherever necessary and state it.
1.	Write short notes on four :-		20
	(a)	A image formation in the eye.
	(b)	Application of image processing
	(c)	Wavelet transforms
	(d)	Image compression technique
	(e)	Chain code.
2.	(a)	Given a 4 x 4 image whose gray level, orders lexicographically are as follows : 3 1 2 0 2 0 3 1 2 3 1 0 1 3 0 2 calculate the spatial moments up to second order.	10
	(b)	Explain filtering in frequency domain.	10
3.	(a)	Explain the different operators used for segmentation of an image.	10
	(b)	illustrate the following techniques :-      (i) Arithmetic code.      (ii) Bit plane coding.	10
4.	(a)	Describe the General Compression System model for digital Images.	10
	(b)	Write the 8 x 8 matrix for walsh transform. write the characteristics of Walsh transform . Show the Walash basic function for N = 4.	10
5.	(a)	Explain the following boundary descriptors.   (i) Fourier Descriptor     (ii) Moments     (iii) Shape numbers.	10
	(b)	Explain image averaging and image Subtraction?	10
6.	(a)	Write notes on discrete Cosine Transform and its application in image Processing.	10
	(b)	What is morphology? Name and explain the basic operations in morphology.	10
7.	(a)	Plot the Histogram for the following image. perform Histogram Equalization and then plot the Equalized histogram and Histogram Equalized Image.   1 1 5 3 3 1 2 6 6 7 1 4 0 6 2 4 4 2 5 2 7 4 0 2 2	10
	(b)	Explain the example : Thinning and Global Processing via Graph Theoretic Techniques.	10