STUPIDSID
Attempt the following
1 (a)
Explain the fundamental of Digital Image Processing.
5 M
1 (b)
What are different point processing techniques used for image enhancement?
5 M
1 (c)
What is segmentation? Explain why it is required?
5 M
1 (d)
What is Image compression?
5 M
2 (a)
Classify the signal as energy or power signal :-
\[x(n)=\left\{\begin{array}{l}{\left(\frac{1}{2}\right)}^n\ \ \&n\geq{}0 \\{\left(2\right)}^n\ \ \&n<0\end{array}\right.\]
\[x(n)=\left\{\begin{array}{l}{\left(\frac{1}{2}\right)}^n\ \ \&n\geq{}0 \\{\left(2\right)}^n\ \ \&n<0\end{array}\right.\]
5 M
2 (b)
State whether system is linear/ Non-linear, Time-Variant/ Time-Invariant, Casual/Anticausal, Stable/Unstable :-
y(n)=nx(n).
y(n)=nx(n).
5 M
2 (c)
Let x(n)={1,2,3,4}
(i) Find x[k]
(ii) Find DFT of xe(n) and xo(n) using x[k].
(i) Find x[k]
(ii) Find DFT of xe(n) and xo(n) using x[k].
10 M
3 (a)
Let x(n)={1,2,3,4,5,6,7} and h(n)={1,0,2} :- Find convolution using overlap add method Find convolution using overlap save method
10 M
3 (b)
Given :-
\[F=\left[\begin{array}{cccc}1 & 1 & 2 & 1 \\2 & 1 & 1 & 2 \\1 & 3 & 2 & 1 \\2 & 1 & 2 & 1\end{array}\right]\]
Find 2D Hadamard transform?
\[F=\left[\begin{array}{cccc}1 & 1 & 2 & 1 \\2 & 1 & 1 & 2 \\1 & 3 & 2 & 1 \\2 & 1 & 2 & 1\end{array}\right]\]
Find 2D Hadamard transform?
10 M
4 (a)
Given :-
\[f\left[x,y\right]=\left[\begin{array}{cc}4 & 5 & 6 \\7 & 8 & 9\end{array}\right]\]
\[f\left[x,y\right]=\left[\begin{array}{cc}1 & 1 \\1 & 1\end{array}\right]\]
Find linear convolution?
\[f\left[x,y\right]=\left[\begin{array}{cc}4 & 5 & 6 \\7 & 8 & 9\end{array}\right]\]
\[f\left[x,y\right]=\left[\begin{array}{cc}1 & 1 \\1 & 1\end{array}\right]\]
Find linear convolution?
10 M
4 (b)
Grey Level Histogram of an image is given below, compute Histogram Equalization. Draw the Histogram of input and output image:-
| Grey Levels | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| No. of Pixels | 790 | 1023 | 850 | 656 | 329 | 245 | 122 | 81 |
10 M
5 (a)
Explain basic principle of detecting following in the images :-
(i) Points
(ii) Lines
(iii) Edges.
(i) Points
(ii) Lines
(iii) Edges.
10 M
5 (b)
Given below is table of eight symbol and their frequency of occurrence :-
Give Huffman code for each eight symbol. What is coding efficiency?
| Symbol | S0 | S1 | S2 | S3 | S4 | S5 | S6 | S7 |
| Frequency | 0.25 | 0.15 | 0.06 | 0.08 | 0.21 | 0.14 | 0.07 | 0.04 |
Give Huffman code for each eight symbol. What is coding efficiency?
10 M
6 (a)
Explain in detail Lossy image compression.
10 M
6 (b)
Explain following terms :-
(i) Dialation
(ii) Erosion.
(i) Dialation
(ii) Erosion.
10 M
Write short notes on any four :-
7 (a)
Image Acquisition
5 M
7 (b)
Filters in frequency domain.
5 M
7 (c)
Image segmentation
5 M
7 (d)
Walsh transform
5 M
7 (e)
Digital watermaking.
5 M
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