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Digital image processing, Fourier kernel
The 2D Fourier kernels k(x,y,u,v) = e^(-j2π(ux/M + vy/N)) is - a)Separable and antisymmetric b)Symmetric but not separable c)Separable and symmetric d)Antisymmetric and not separable

subhash112 asked in Digital Image Processing Nov 22, 2022

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7 votes

3 answers

2

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

makhdoom ghaya asked in Digital Image Processing Apr 25, 2016

by makhdoom ghaya

10.0k views

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2 answers

3

UGC NET CSE | June 2014 | Part 3 | Question: 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

makhdoom ghaya asked in Digital Image Processing Jul 11, 2016

by makhdoom ghaya

4.9k views

1 vote

1 answer

4

UGC NET CSE | December 2014 | Part 3 | Question: 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 $a = 0, b = 0, c = 0, d = 1$ ... $a=\frac{1}{4}, b=\frac{1}{4}, c=\frac{1}{4}, d=\frac{1}{4}$

makhdoom ghaya asked in Digital Image Processing Aug 2, 2016

by makhdoom ghaya

2.0k views

5 votes

3 answers

5

ISRO2015-65
Which of the following is not an image type used in $\text{MPEG}?$ $\text{A}$ frame $\text{B}$ frame $\text{D}$ frame $\text{P}$ frame

go_editor asked in Digital Image Processing Jun 21, 2016

4.8k views

4 votes

1 answer

6

ISRO2014-7
What does a pixel mask mean? string containing only $1\text{'s}$ string containing only $0\text{'s}$ string containing two $0\text{'s}$ string containing $1\text{'s}$ and $0\text{’s}$

Nijpriya Advait asked in Digital Image Processing Jun 9, 2016

by Nijpriya Advait

6.8k views

2 votes

1 answer

7

UGC NET CSE | December 2015 | Part 3 | Question: 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 $\begin{pmatrix} 1-p & p \\ p & 1-p \end{pmatrix}$ ... : $1$ $-p \log(p)-(1-p) \log(1-p)$ $1+p \log(p)+(1-p) \log(1-p)$ $0$

go_editor asked in Digital Image Processing Aug 11, 2016

2.1k views

5 votes

1 answer

8

ISRO2015-63
Which of the following compression algorithms is used to generate a $\textsf{.png}$ file? $\text{LZ78}$ Deflate $\text{LZW}$ Huffman

go_editor asked in Digital Image Processing Jun 20, 2016

3.8k views

2 votes

1 answer

9

UGC NET CSE | June 2016 | Part 3 | Question: 60
Which of the following is used for the boundary representation of an image object? Quad Tree Projections Run length coding Chain codes

go_editor asked in Digital Image Processing Aug 21, 2016

2.1k views

2 votes

2 answers

10

UGC NET CSE | June 2012 | Part 3 | Question: 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

go_editor asked in Digital Image Processing Jul 6, 2016

2.5k views

1 vote

1 answer

11

UGC NET CSE | June 2012 | Part 3 | Question: 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

go_editor asked in Digital Image Processing Jul 6, 2016

2.2k views

1 vote

1 answer

12

UGC NET CSE | December 2015 | Part 3 | Question: 51
Blind image disconvolution is Combination of blur identification and image restoration Combination of segmentation and classification Combination of blur and non-blur image None of the above

go_editor asked in Digital Image Processing Aug 11, 2016

1.3k views

0 votes

1 answer

13

in the standard ieee 754 single precision floating point representation there is 1 bit of sign 23 bit for fraction

Anuanu asked in Digital Image Processing Jun 24, 2016

by Anuanu

673 views

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14

UGC NET CSE | December 2012 | Part 3 | Question: 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 $\frac{1}{4} F (\frac{m}{2}, \frac{n}{2})$ $\frac{1}{4} F (2m, 2n)$ $\frac{1}{4} F (m,n)$ $\frac{1}{4} F (\frac{m}{4}, \frac{n}{4})$

Sanjay Sharma asked in Digital Image Processing Apr 13, 2016

by Sanjay Sharma

1.6k views

0 votes

0 answers

15

Sanjay Sharma asked in Digital Image Processing Jun 30, 2016

by Sanjay Sharma

420 views

0 votes

0 answers

16

spatial masks
closed

Sanjay Sharma asked in Digital Image Processing Jun 30, 2016

by Sanjay Sharma

325 views

0 votes

0 answers

17

IMAGE
closed

Sanjay Sharma asked in Digital Image Processing May 6, 2016

by Sanjay Sharma

306 views

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