Download AKTU B-Tech 8th Sem 2018-19 NCS801 Digital Image Processing Question Paper

Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 8th Semester (Eight Semester) 2018-19 NCS801 Digital Image Processing Question Paper

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Printed Paesz02 Sub Code: NCS801
Paper1a=?RouNo.I | | | I I I I I I I
B.TECH
(SEM VIII) THEORY EXAMINATION 2018-19
DIGITAL IMAGE PROCESSING
T ime: 3 Hours T 0tal Marks: 100
Note: Attempt all Sections. If require any missing data; then choose suitably.
SECTION A
1. Attempt all questions in brief. 2 x10 = 20
Define components of image processing system.
Name some applications of digital image processing.
Write down mask of Sobel filter.
Differentiate between image enhancement and restoration.
Explain Laplacian filter.
Define Dilation Process.
What is the use of Boundary Extraction?
Define morphological image processing.
What is geometric transformation?
What are first order derivative filters?
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SECTION B
2. Attempt any three of the following: 10 x 3 = 30
a. Consider the image segment shown.
3 1 2 1 (q)
2 2 O 2
1 2 1 1
(p) 1 0 1 2
(1) Take V={0, 1} and compute the lengths of shortest 4?,8?, and m?path
between p and q. If a particular path does not exist between these
two points, explain why.
(11) Repeat for V={ 1,2}
b. What are the linear and non-linear smoothing filters in spatial domain?
Compute the new pixel values after applying the 3X3 box filter on the following
5x5 matrix of a 3-bit image.
2 3 7 0 7
6 4 4 1 5
1 3 2 2 3
4 5 0 6 4
6 1 7 6 4
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0. Explain edge detection and edge linking. Also write the difference between
edge detection and edge linking.
d. What is image restoration? Explain in detail the image restoration in presence
of noise only.
e. Explain the following morphological operations: 1. Opening ii. Closing iii.
Region Filling.
SECTION C
Attempt any one part of the following: 10 x 1=10
(a) Explain low level, mid level and high level image processing. Also explain
sampling and quantization process.
(b) Explain the process of filtering in frequency domain. Discuss low pass and high
pass frequency domain filters.
Attempt any one part of the following: 10 x 1=10
(a) Explain piecewise linear transformations of image enhancement with suitable
example.
(b) Write notes on: 1. Bit plane slicing ii. Homomorphic Filter iii. Image histogram
Attempt any one part of the following: 10 x 1=10
(a) Discuss order statics filters with suitable example.
(b) Explain the process of minimum mean square error restoration.
Attempt any one part of the following: 10 x 1=10
(a) Explain thinning and thickening operation with suitable example.
(b) Prove the validity of the duality expressions (A oB)C = (AC 0?)and (A oB)C =
(AC OB).
Attempt any one part of the following: 10 x 1=10
(a) Explain 1. Stereo Imaging ii.Multi-level thresholding iiilmage Registration
(b) The so?called compass gradient operators of size 3X3 are designed to measure
gradients of edges oriented in eight directions: E, NE, N, NW, W, SW, S, and
SE. Give the form of these eight operators using coefficients valued 0, 1, 0r ? 1.
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