Posted Date: 18 Jul 2016      Posted By:: Krishna Teja Yeluripati    Member Level: Gold  Points: 3 (Rs. 3)

# 2014 Acharya Nagarjuna University B.Tech 4th Year - 2nd Semester - Bapatla Engineering College - Digital Image Processing II - April 2014 Question paper

 Course: University/board: Acharya Nagarjuna University

Are you looking for the previous question papers of Digital Image Processing II - Bapatla Engineering College - B.Tech? This is the original question paper from the B.Tech fourth year second semester exam conducted by Bapatla Engineering College in April 2014. Feel free to store a copy and use it to prepare for your upcoming exams.

IV/IV B.Tech Degree Examinations, April 2014

Second Semester

Digital Image Processing II

Time : 3 hours

Maximum Marks : 60

Answer ONE question from each Unit

1. Answer the following [12 x 1 = 12M]
a) Mention the applications of digital image processing.
b) Define spatial resolution and gray level resolution.
c) Define neighbors of a pixel.
d) Define unsharp masking and high boost filtering.
e) What is the application of image smoothing?
f) Explain contra – harmonic filter.
g) Define fidelity criteria.
h) Draw the prewitt and sobel operators.
i) Define thresholding.
j) Mention the discontinuities present in the digital images.
k) Define region growing, splitting and merging.
l) Mention any two image representation schemes.

UNIT - I [1 x 12 = 12M]

2. a) Define gray scale. Explain how the change in sampling and quantization will affect the quality of the image.
2. b) Discuss the components in an image processing system. (OR)
3. a) Write a short note on the color models RGB and HSI.
3. b) A common measure of transmission for digital data is the baud rate, defined as the number of bits transmitted per second. Generally, transmission is accomplished in packets consisting of a start bit, a byte (8 bit) of information and a stop bit. Using these facts find how many minutes would it take to transmit a 1024 x 1-24 image with 256 intensity levels using a 56 K baud modem?

UNIT - II [1 x 12 = 12M]

4. a) Discuss the image enhancement using smoothing and sharpening spatial filters with an emphasis given to the mechanics of spatial filtering.
4. b) Write a short note on enhancement using arithmetic operations. (OR)
5. a) Write a detailed note on the following:
i) Smoothing frequency domain filters
ii) Sharpening frequency domain filters
5. b) Explain homomorphic filtering.

UNIT - III [1 x 12 = 12M]

6. a) How the noise parameters are estimated from the noisy image.
6. b) Explain the restoration of noisy images using mean filters, order statistic filters, adaptive filters. (OR)
7. Write a detailed note on JPEG standard.

UNIT - IV [1 x 12 = 12M]

8. a) Write a detailed note on detection of discontinuities in digital images.
8. b) Write a short note on thresholding. (OR)
9. a) Explain various image representation schemes.
9. b) Write a short note on boundary descriptors.

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