Download JNTUA B.Tech 4-2 R13 2018 April 13A04704 Digital Image Processing Question Paper

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Code: 13A04704

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B.Tech IV Year II Semester (R13) Regular & Supplementary Examinations April 2018

DIGITAL IMAGE PROCESSING

(Electronics and Instrumentation Engineering)

Time: 3 hours

Max. Marks: 70

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PART - A

(Compulsory Question)

Answer the following: (10 X 02 = 20 Marks)

1. (a) Define quantization.
2. (b) List the components of digital image processing systems.

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3. (c) What are the types of noise models?
4. (d) Give the expression for 2D N point DFT.
5. (e) Define histogram.
6. (f) List out numerous color models.
7. (g) What are the filters used in image restoration?

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8. (h) Write expression for inverse filtering.
9. (i) What are the basic steps in JPEG?
10. (j) What is arithmetic coding?

PART - B

(Answer all five units, 5 X 10 = 50 Marks)

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UNIT - I

1. Discuss the following mathematical operations on digital images:
   1. (a) Linear versus nonlinear operations.
   2. (b) Array versus matrix operations.

   OR

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2. Draw and explain the fundamental steps involved in image processing.

UNIT - II

1. Define discrete cosine transform and explain it properties.

   OR

2. Compute the Hadamard transform matrix for N = 4.

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UNIT - III

1. Elaborate the steps involved in histogram equalization and perform the histogram equalization for the given 3-bit image.

   f(x,y) = 4 4 3

   5 2 2

   OR

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2. Explain various types of filters used in smoothing image in frequency domain enhancement.

UNIT - IV

1. Draw and explain the degradation and restoration model with necessary expressions.

   OR

2. Explain the process of edge detection in image segmentation.

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UNIT - V

1. Explain briefly the classification of redundancy in images.

   OR

2. With the help of a block diagram, explain the compression model.

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