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Recent questions and answers in Digital Image Processing
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Recent questions and answers in Digital Image Processing
1
vote
1
answer
1
UGCNET-Dec2014-III: 65
Given a simple image of size $10 \times 10$ whose histogram models the symbol probabilities and is given by $P_{1}$ $P_{2}$ $P_{3}$ $P_{4}$ a b c d The first order estimate of image entropy is maximum when $a = 0, b = 0, c = 0, d = 1$ $a=\frac{1}{2}, b=\frac{1}{2}, c=0, d=0$ ... $a=\frac{1}{4}, b=\frac{1}{4}, c=\frac{1}{4}, d=\frac{1}{4}$
Given a simple image of size $10 \times 10$ whose histogram models the symbol probabilities and is given by $P_{1}$ $P_{2}$ $P_{3}$ $P_{4}$ a b c d The first order estimate of image entropy is maximum when $a = 0, b = 0, c = 0, d = 1$ $a=\frac{1}{2}, b=\frac{1}{2}, c=0, d=0$ $a=\frac{1}{3}, b=\frac{1}{3}, c=\frac{1}{3}, d=0$ $a=\frac{1}{4}, b=\frac{1}{4}, c=\frac{1}{4}, d=\frac{1}{4}$
answered
Dec 5, 2018
in
Digital Image Processing
Taniya Bal
1.2k
views
ugcnetdec2014iii
digital-image-processing
entropy
0
votes
2
answers
2
UGCNET-June2014-III: 55
Given an image of size $1024 \times 1024$ pixels in which intensity of each pixel is an $8$-bit quality. It requires _______ of storage space if the image is not compressed. One Terabyte One Megabyte $8$ Megabytes $8$ Terabytes
Given an image of size $1024 \times 1024$ pixels in which intensity of each pixel is an $8$-bit quality. It requires _______ of storage space if the image is not compressed. One Terabyte One Megabyte $8$ Megabytes $8$ Terabytes
answered
May 19, 2018
in
Digital Image Processing
Prasanjeet Ghosh
1.9k
views
ugcnetjune2014iii
image-compression
computer-graphics
2
votes
1
answer
3
UGCNET-Dec2015-III: 49
Consider the conditional entropy and mutual information for the binary symmetric channel. The input source has alphabet $X=\{0,1\}$ and associated probabilities ${\dfrac{1}{2}, \dfrac{1}{2}}$. The channel matrix is $\begin{pmatrix} 1-p & p \\ p & 1-p \end{pmatrix}$ wgere p is the ... given by: $1$ $-p \log(p)-(1-p) \log(1-p)$ $1+p \log(p)+(1-p) \log(1-p)$ $0$
Consider the conditional entropy and mutual information for the binary symmetric channel. The input source has alphabet $X=\{0,1\}$ and associated probabilities ${\dfrac{1}{2}, \dfrac{1}{2}}$. The channel matrix is $\begin{pmatrix} 1-p & p \\ p & 1-p \end{pmatrix}$ wgere p is the transition probability. Then ... is given by: $1$ $-p \log(p)-(1-p) \log(1-p)$ $1+p \log(p)+(1-p) \log(1-p)$ $0$
answered
Apr 7, 2017
in
Digital Image Processing
Allwin
1.3k
views
ugcnetdec2015iii
digital-image-processing
entropy
4
votes
3
answers
4
ISRO2015-65
Which of the following is not an image type used in MPEG? A frame B frame D frame P frame
Which of the following is not an image type used in MPEG? A frame B frame D frame P frame
answered
Apr 1, 2017
in
Digital Image Processing
Regina Phalange
3.1k
views
isro2015
digital-image-processing
non-gate
7
votes
3
answers
5
ISRO-2013-10
If the frame buffer has 8 bits per pixel and 8 bits are allocated for each of the $R, G, B$ components, what would be the size of the lookup table? $24$ bytes $1024$ bytes $768$ bytes $256$ bytes
If the frame buffer has 8 bits per pixel and 8 bits are allocated for each of the $R, G, B$ components, what would be the size of the lookup table? $24$ bytes $1024$ bytes $768$ bytes $256$ bytes
answered
Nov 2, 2016
in
Digital Image Processing
Arunav Khare
6.2k
views
isro2013
digital-image-processing
2
votes
1
answer
6
UGCNET-June2016-III: 60
Which of the following is used for the boundary representation of an image object? Quad Tree Projections Run length coding Chain codes
Which of the following is used for the boundary representation of an image object? Quad Tree Projections Run length coding Chain codes
answered
Sep 7, 2016
in
Digital Image Processing
Sanjay Sharma
1.3k
views
ugcnetjune2016iii
image-compression
computer-graphics
2
votes
1
answer
7
UGCNET-June2012-III: 10
In an image compression system 16384 bits are used to represent 256 $\times$ 256 image with 256 gray levels. What is the compression ratio for this system? 1 2 4 8
In an image compression system 16384 bits are used to represent 256 $\times$ 256 image with 256 gray levels. What is the compression ratio for this system? 1 2 4 8
answered
Jul 7, 2016
in
Digital Image Processing
Krishnadulal Dalapat
797
views
ugcnetjune2012iii
image-compression
1
vote
1
answer
8
UGCNET-June2012-III: 19
The quantiser in an image-compression system is a lossy element which exploits the psychovisual redundancy lossless element which exploits the psychovisual redundancy lossy element which exploits the statistical redundancy lossless element which exploits the statistical redundancy
The quantiser in an image-compression system is a lossy element which exploits the psychovisual redundancy lossless element which exploits the psychovisual redundancy lossy element which exploits the statistical redundancy lossless element which exploits the statistical redundancy
answered
Jul 7, 2016
in
Digital Image Processing
shekhar chauhan
1.1k
views
ugcnetjune2012iii
image-compression
0
votes
0
answers
9
image enotropy
asked
Jun 30, 2016
in
Digital Image Processing
Sanjay Sharma
154
views
digital-image-processing
0
votes
0
answers
10
spatial masks
[closed]
asked
Jun 30, 2016
in
Digital Image Processing
Sanjay Sharma
156
views
0
votes
1
answer
11
in the standard ieee 754 single precision floating point representation there is 1 bit of sign 23 bit for fraction
answered
Jun 24, 2016
in
Digital Image Processing
Rajesh Pradhan
348
views
4
votes
1
answer
12
ISRO2015-63
Which of the following compression algorithms is used to generate a .png file? LZ78 Deflate LZW Huffman
Which of the following compression algorithms is used to generate a .png file? LZ78 Deflate LZW Huffman
answered
Jun 20, 2016
in
Digital Image Processing
Desert_Warrior
3k
views
isro2015
digital-image-processing
image-compression
non-gate
3
votes
1
answer
13
ISRO2014-7
What does a pixel mask mean? string containing only 1's string containing only 0's string containing two 0's string containing 1's and 0’s
What does a pixel mask mean? string containing only 1's string containing only 0's string containing two 0's string containing 1's and 0’s
answered
Jun 10, 2016
in
Digital Image Processing
shekhar chauhan
4.9k
views
non-gate
digital-image-processing
isro2014
0
votes
0
answers
14
IMAGE
[closed]
asked
May 6, 2016
in
Digital Image Processing
Sanjay Sharma
118
views
digital-image-processing
non-gate
0
votes
0
answers
15
ugc net12
14. If the pixels of an image are shuffled then the parameter that may change is (A) Histogram (B) Mean (C) Entropy (D) Covariance
14. If the pixels of an image are shuffled then the parameter that may change is (A) Histogram (B) Mean (C) Entropy (D) Covariance
asked
May 6, 2016
in
Digital Image Processing
Sanjay Sharma
339
views
digital-image-processing
0
votes
1
answer
16
ugc net june12
In an image compression system 16384 bits are used to represent 256 × 256 image with 256 gray levels. What is the compression ratio for this system ? (A) 1 (B) 2 (C) 4 (D) 8
In an image compression system 16384 bits are used to represent 256 × 256 image with 256 gray levels. What is the compression ratio for this system ? (A) 1 (B) 2 (C) 4 (D) 8
answered
Apr 28, 2016
in
Digital Image Processing
Arjun
2.7k
views
image-compression
digital-image-processing
0
votes
0
answers
17
UGCNET-Dec2012-III: 64
If the Fourier transform of the function f(x,y) is F(m,n), then the Fourier transform of the function f(2x,2y) is $\frac{1}{4} F (\frac{m}{2}, \frac{n}{2})$ $\frac{1}{4} F (2m, 2n)$ $\frac{1}{4} F (m,n)$ $\frac{1}{4} F (\frac{m}{4}, \frac{n}{4})$
If the Fourier transform of the function f(x,y) is F(m,n), then the Fourier transform of the function f(2x,2y) is $\frac{1}{4} F (\frac{m}{2}, \frac{n}{2})$ $\frac{1}{4} F (2m, 2n)$ $\frac{1}{4} F (m,n)$ $\frac{1}{4} F (\frac{m}{4}, \frac{n}{4})$
asked
Apr 13, 2016
in
Digital Image Processing
Sanjay Sharma
973
views
ugcnetdec2012iii
fourier-transform
digital-image-processing
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