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2003 Course Digital Image Processing

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Total No. of Questions : 12] [Total No. of Pages : 4 P1002 [3664]-227 B.E. (Electronics) DIGITAL IMAGE PROCESSING (404212) (2003 Course) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates : 1) Answer Q. No. 1 or Q. No. 2, Q. No. 3 or Q. No. 4, Q. No. 5 or Q. No. 6 from Section - I and Q. No. 7 or Q. No. 8, Q. No. 9 or Q. No. 10, Q. No. 11 or Q. No. 12 from Section - II. 2) Answers to the two sections should be written in separate books. 3) Neat diagrams must be drawn wherever necessary. 4) Figures to the right indicate full marks. 5) Assume suitable data, if necessary. 6) Use of logarithmic tables, slide rule, electronic pocket calculator is allowed. SECTION - I Q1) a) Draw and explain the block diagram of a digital image processing system. [8] b) Explain the steps taken to convert an analog image into digital one. [8] OR Q2) a) Explain the different ways of finding distance between two pixels. [6] b) Explain the reason for occurrence of false contouring & checkerboard patterns in an image. Suggest the techniques to avoid them. [8] c) Explain : i) Mean. ii) Standard deviation. Q3) a) Compute the 2D DFT of the 4 4 grayscale image given below : 1 1 f(m, n) = 1 1 [2] [8] 1 1 1 1 1 1 1 1 1 1 1 1 P.T.O.

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