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Recent questions and answers in Digital Image Processing
+1
vote
1
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1
UGCNETDec2014III65
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 $a = 0, b = 0, c = 0, d = 1$ $a=\frac{1}{2}, b=\frac{1}{2}, c=0, d=0$ ... $a=\frac{1}{4}, b=\frac{1}{4}, c=\frac{1}{4}, d=\frac{1}{4}$
answered
Dec 5, 2018
in
Digital Image Processing
by
Taniya Bal
(
17
points)

874
views
ugcnetdec2014iii
imageprocessing
entropy
0
votes
2
answers
2
UGCNETJune2014III55
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
by
Prasanjeet Ghosh
Active
(
1.8k
points)

813
views
ugcnetjune2014iii
imagecompression
computergraphics
+2
votes
1
answer
3
UGCNETDec2015III49
Consider the conditional entropy and mutual information for the binary symmetric channel. The input source has alphabet $X=\{0,1\}$ and associated probabilities ${\frac{1}{2}, \frac{1}{2}}$ ... probability. Then the conditional entropy is given by: 1 plog(p)(1p)log(1p) 1+plog(p)+(1p)log(1p) 0
answered
Apr 7, 2017
in
Digital Image Processing
by
Allwin
(
75
points)

888
views
ugcnetdec2015iii
digitalimageprocessing
entropy
+4
votes
3
answers
4
ISRO201565
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
by
Regina Phalange
Loyal
(
9.3k
points)

2.3k
views
isro2015
imageprocessing
nongate
+6
votes
3
answers
5
ISRO201310
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
by
Arunav Khare
Loyal
(
5.3k
points)

4.4k
views
isro2013
imageprocessing
+2
votes
1
answer
6
UGCNETJune2016III60
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
by
Sanjay Sharma
Veteran
(
50.5k
points)

935
views
ugcnetjune2016iii
imagecompression
computergraphics
+2
votes
1
answer
7
UGCNETJune2012III10
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
by
Krishnadulal Dalapat
(
243
points)

504
views
ugcnetjune2012iii
imagecompression
+1
vote
1
answer
8
UGCNETJune2012III19
The quantiser in an imagecompression 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
by
shekhar chauhan
Boss
(
45.4k
points)

552
views
ugcnetjune2012iii
imagecompression
0
votes
0
answers
9
image enotropy
asked
Jun 30, 2016
in
Digital Image Processing
by
Sanjay Sharma
Veteran
(
50.5k
points)

109
views
imageprocessing
0
votes
0
answers
10
spatial masks
[closed]
asked
Jun 30, 2016
in
Digital Image Processing
by
Sanjay Sharma
Veteran
(
50.5k
points)

110
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
by
Rajesh Pradhan
Boss
(
23.6k
points)

262
views
+4
votes
1
answer
12
ISRO201563
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
by
Desert_Warrior
Loyal
(
8.7k
points)

2.3k
views
isro2015
imageprocessing
imagecompression
nongate
+3
votes
1
answer
13
ISRO20147
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
by
shekhar chauhan
Boss
(
45.4k
points)

3.5k
views
nongate
imageprocessing
isro2014
0
votes
0
answers
14
IMAGE
[closed]
asked
May 6, 2016
in
Digital Image Processing
by
Sanjay Sharma
Veteran
(
50.5k
points)

88
views
imageprocessing
nongate
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
asked
May 6, 2016
in
Digital Image Processing
by
Sanjay Sharma
Veteran
(
50.5k
points)

222
views
imageprocessing
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
answered
Apr 28, 2016
in
Digital Image Processing
by
Arjun
Veteran
(
384k
points)

1.5k
views
imagecompression
imageprocessing
0
votes
0
answers
17
UGCNETDec2012III64
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
by
Sanjay Sharma
Veteran
(
50.5k
points)

561
views
ugcnetdec2012iii
fouriertransform
imageprocessing
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