One mark Questions
1) Arithmetic operations are useful in
a) Noise reduction b) contrast improvement c) Filtering d) a and c
2) The inverse perspective transformation converts the co-cordiality from__________ to ___________.
a) 2D to 3D image b) 2D image to 3D image
c) 3D world to 3D image d) 3D world to 2D world
3) _________________ is to acquire to digital image.
a) Pre-processing b) segmentation c) image acquisition d) None
4) _________________ is used to improve the image in ways that increases the chancesfor success of the processes
a) Pre-processing b) Segmentation c) image acquisition d) None
5) Image is a _________________ dimensional light intensity function
a) One b) two c) Three d) None
6) _________________ partitions the image into its consistent parts or objects
a) pre-processing b) segmentation c) image acquisition d) None
7) _________________ deals with the extracting features for differentiating one class of
objects from other
a) Description b) Decision c) segmentation d) None
8) _________________ device produces an electrical signal output proportional to the
level of energy sensed
a) Physical b) logical c) digitizer d) None
9) Tilt, Pan means _________________
a) Vertical angle between X, x b) Horizontal angle between Z. z
c) Horizontal angle between X, x d) Vertical angle between Z. z
10) The perspective transformation involving two coordinates is given by
a) Cn = PGWn b) PCRWn
c) PRCGWn d) PCRGWn
11) Fourier transform pair exists if the function
a) f(x) is integrable b) f(x) is continuous
F(u) is continuous F(u)is integrable
c) F(x)is continuous d) f(x) is continuous and integrable
F(u) is integrable F(u) is integrable
12) Discrete Fouries transform is useful to represent the image as _________________.
a) 2D frequency function b) 2D intensity function
c) 3D spatial function d) 3D power function
13) ___________ converts the electrical signal output of the device into digital form
a) Physical b) logical c) digitizer d) none
14) Operations of video cameras is based on the principle of _________________
a) Free conducting b) Semi conducting c) Photo conducting d) None
15) _________________ consists of a row of photosites and produce a two-dimensional
image by relative motion between the scene an detector.
a) Line-scan sensor b) Area Sensor c) photo sites d) None
16) _________________ is composed of a matrix of photo sites
a) Line-scan sensor b) Area Sensor c) photo sites d) none
17) Choose the correct order of transformation
a) A=RTS b) A=TSR c) A=STR d) A=RST
18) Digital storage for image processing application falls in---------principal categories.
a) Two b) four c) Three d) five
19) In the distribution of rods and cones in the titian the absence of receptors is called-----
a) Blind sport b) photopic vision c) scotopic vision d) none
20) Number of rods in the human eye is----------millions.
a) 6-7 b) 75-100 c) 100-200 d) none
21) Number of cones in the human eye is--------millions.
a) 6-7 b) 75-100 c) 100-200 d) none
22) Scotopic vision is produced by----------
a) Cones b) rods c) membrane d) none
23) Cone vision is called---------
a) Photopic b) scotopic c) light vision d) none
24) Cones and rods are----------in the structure of human eye
a) Membranes b) receptors c) chords d) none
25) An average diameter of human eye is approximately---------
a) 20 cm b) 20MM c) 20m d) none
26) ---------- communication exists between image processing systems.
a) Remote b) local c) internal d) external
27) ------------- communication exists from one point to another .Another in connection
with the transmission of image data.
a) remote b) local c) internal d) external
28) digital storage for image processing applications falls in---------
a) two b) four c) three d) five
29) Frame buffer used as--------------storage
a) short-term b) on-line c) archival d) none
30) Magnetic disks are example for----------example.
a) short-term b) on-line c) archival d) none
31) Brightness perceived by the human visual system is called-----------
a) Blind sport b) photopic vision c) subjective brightness d) none
32) Transition from scotopic to photopic vision is range from -------------
a) -3 to –1 ML b) -2 to –1ML c) -3 to –2 ML d) none
33) For any give set of condition the current sensitivity level of the visual system is
Called-------------
a) Blind sport b) photopic vision
c) Subjective brightness d) brightness adaptation
34) Amplitude digitization is called---------
a) gray level b) image sampling c) grayscale d) none
35) Digitization of special coordinates (x,y)is called-----------
a) Gray level b) image processing c) gray scale d) none
36) The interval [L min,L max ] is called--------
a) scotopic b) photopic c) gray scale d) none
37) Nature of r(x, y)is determined by-----------
a) Light source b) characteristics of object
c) Light d) none
38) The simple image model f(x,y)= ----------
a) I(x, y) b) R(x, y) c) I(x, y)*r(x, y) d) none
39) In the simple image model f(x, y)=I(x, y)*r(x, y),r(x, y)is------------
a) 0
40) In the uniform sampling quantization number of bits required storing the image
b= -------- if M=N
a) n2M b) N2 m c) N2m d) none
41) The given coordinates (x+1,y),(x-1,y),(x,y+1),(x,y-1) represents -----------neighbors
of the pixel
a) diagonal b) horizontal c) vertical d) b & c
42) The given coordinates (x+1,y+1),(x-1,y-1),(x,+1y+1),(x-1,y-1) represents -----------
neighbors of the pixel
a) diagonal b) horizontal c) vertical d) b & c
43) Two pixels p and q with values from V are----------connected if q is in the set N4(p).
a) 4 b) 8 c) m d) none
44) Mixed connectivity is a modification of------------connectivity.
a) 4 b) 8 c) m d) none
45) Two pixels p and q with values from V are-----------------connected if q is in the set
N8(p).
a) 4 b) 8 c) m d) none
46) -------------is a process to increase or decrease the size of given images.
a) Translation b) scaling c) rotation d) none
47) -----------is a process to translate a point with co-ordinates to from am\another logical
operation.
a) Incomplete b) functionally complete c) complete d) none
48) In the logical operation of image processing pORq can also be represented-------
a) p.q b) p + q c) p-q d) none
49) In the logical operation of image processing p AND q can also be represented-------
a) p.q b) p + q c) p-q d) none
50) The Euclidian distance between p and q is defined as De (p, q) = --------
a) [(x-s)2+(y-t)2]1/2 b)[(x-s)3+(y-t)2]1/2 c) [(x-s)2-(y-t)2]1/2 d) none
51) The D4 distance between p and q is defined as D4(p,q)= -------
a) |x-s|-|y-t| b) |x-s| + |y-t| c) |x + s|-|y + t| d) none
52) --------is a process to change the direction of given images.
a) Translation b) scaling c) rotation d) none
53) The given matrix notation represents----------
Sx 0 0 0
0 Sy 0 0
0 0 Sz 0
0 0 0 1
a) Translation b) scaling c) rotation d) none
54) The given matrix notation represents.
Cos Sin 0 0
-Sin Cos 0 0
0 0 1 0
0 0 0 1
a) Translation b) scaling c) rotation d) none
55) DIN systems uses----------concept.
a) logarithmic b) arithmetic c) relational d) none
56) ASA scale is----------type.
a) logarithmic b) arithmetic c) relational d) none
57) -------------- transformations projects 3-D points on to a plane.
a) perspective b) descriptive c) geometric d) none
58) In the photographic film ------------is used for protection against scratches.
a) supercoat b) emulsion c) substrate d) film base.
59) An ASA50 film is equivalent to a------------
a) DIN50 b) DIN18 c) DIN80 d) none
60) The image derived from silver halid crystals is-----------in structures.
a) Continuous b) discontinuous c) flat d) none
61) Fine grain films with thin emulsion yields the ---------resolving power.
a) low b) 0 c) high d) none
62) The Fourier transformation pair f(x) is---------and integral.
a) Continuous b) discontinuous c) flat d) none
63) In the Fourier transformation f(u)= |f(u)| ej(u),where (u)= ----------
a) (u)=tan-1 I(u)
R(u)
b) (u)=tan-1 R(u)
I(u)
c) (u)=tan I(u)
R(u)
d) None
64) In the two variables function f(x, y) of Fourier transformation p(u,v)= ---------
a) | F(u)|2 b) |F(u, v)|2 c) |F(u + v)|2 d) none
65) For the sequence of the sampled f(x0),f(x+x),f(x0+2x),….}displacements is
a) x b) 2x c) x/2 d) none
66) In the one variable discrete Fourier transforms u= ----------
a) 1/x b) 1/2x c) 1/ Nx d) none
67) In the two variable discrete Fourier transforms V= ---------
a) 1/x b)1/2x c)1/Ny d) none
68) The following given equation represents--------property of 2-D Fourier transform
a) Reparability b) Translation c) Convolution d) none
69) Fourier transform and its inverse are distribute over-------------
a) Addition b) Multiplication c) division d) none
70) The number of complex multiplication’s and addition’s required to implement in the
DFT is proportional to--------------
a) N log N b) N log2 N c) N2 d) none
71) In the FFT number of multiplications and additions operations proportional to---------
a) N log N b) N log2 N c) N2 d) none
72) The number of complex multiplications required to implement the FFT m(x)= -------
a) 1/2 Nn b) Nn c) 2Nn d) none
73) The number of complex additions required to implement the FFT a(n)= --------
a) 1/2 Nn b) Nn c) 2Nn d) none
H2 H2
74) The Hadamard matrix H2 -H2 is if-----------order.
a) 2 b) 4 c) 8 d) none
H4 H4
75) The Hadamard matrix H4 -H4 is if-----------order.
a) 2 b) 4 c) 8 d) none
N-1
76) The equation c(n)=(u) f (x)cos[(2x+1)42] represents---------transform.
x=0
a) 1-D DCT b) z-D,DCT c) hadamard d) none
77)-----------------is a small 3 X 3 2D array.
a) mask b) structure c) set d) none
78) Foundation for frequency domain techniques is--------theorem.
a) Superability b) convolution c) spatial domain d) none
79) --------------of digital images or useful in displaying in medial images.
a) Negatives b) positives c) contrast stretch d) none
80) -------------Filters attenuate or eliminate high-frequency components.
a) low pass b) high pass c) spatial d) none
81) -------------Filters attenuate or eliminate high-frequency components.
a) Low pass b) high pass c) spatial d) none
82) -------------- filters are used for blurring and for noise reduction.
a) Smoothing filters b) sharpening filters
c) Low-pass filters d) median filters
83) -------------filter replaces gray level of each pixel by the median of the gray level in a
neighborhood of pixel.
a) smoothing filters b) sharpening filters
c) low-pass filters d) median filters
84) In the 2-Dideal low pass filter id D(u,v)<=D0 then H(u,v)= ---------------
a) 0 b) 1 c) Alpha d) none
85) In the 2-Dideal High pass filter id D(u,v)>D0 then H(u,v)= ---------------
a) 0 b) 1 c) Alpha d) none
86) Color image processing is divided into-----------major areas.
a) 1 b) 2 c) 3 d) 4
87) Which of the following is secondary color.
a) red b) gray c) yellow d) green
88) Combination of red and blue yields------------color.
a) Magenta b) cyan c) yellow d) green
89) ----------- color model is used in commercial color TV broad casting.
a) RGB b) CMY c) YIQ d) HIS
90) ----------- color model is used for image enhancement in full-color image processing.
a) RGB b) CMY c) YIQ d) HIS
91) ------------is a process that attempts to reconstruct or recover an image that has got
degraded.
a) Image enhancement b) image compression
c) Image restoration d) none
92) The property H[f1(x,y)+f2(x,y)]=H[f1(x,y)+f2(x,y)] is called.
a) Additively b) closure c) homogeneity d) none
93) De-gradation models are basically------------types.
a)2 b)3 c)4 d)5
94) in-------------method image that has been blurred by uniform linear motion.
A)Least mean source b)uniform linear motion
c)constrained least square d)none
95)--------------transformation defines the re-arrangement of pixels on the image place.
a)gray level interpolation b)spatial
c)frequency domain d)none
96) In the ------------transformation the assign the gray levels to pixels in the image.
a)gray level interpolation b)spatial
c)frequency domain d)none
97) Relative data redundancy RD can be defined as--------------
a)RD=1-1/CR b)RD=1-CR c)1-n1/n2 d)none
98) if n1=n2 then RD= -----------
a) 0 b)1 c)- d)none
99) if n2<
100) In the source encoding ----------operation reduce inter pixel redundancy.
a) Source decoder b) Source encoder
c) Channel encoder d) Mapper
101)-----------creates a fixed or variable length code to represents the quantizer output.
a) Mapper b) Symbol encoder c) Quantizer d) None
102) Arithmetic coding generates -------------codes.
a) Non-block b) block c) un block d) None
103) The matrix notation g=Hf represents degradation model for ---------------functions.
a) Continuous b) discrete c) random d) None
104) There are --------number of algebraic approaches restoration.
a) Three b) two c) four d) None
105. Quantization yield image information _________________
a) Loss b) enhancement c) Boosting d) Decompression
Two Marks Questions
1. Then gray level of any point in the printout can be controlled by the _________ and
_______ of the characteristic printed at that point.
a) Number, color b) Number, density
c) Number, Size c) None
2. Slides, Photographs are ______________ output and the images being viewed on the
monitor screen is ________________ output.
a) Softcopy, Hard Copy b) Hardcopy, softcopy
c) Soft copy, softcopy d) None
3. If no. of bits in the code is ‘8’ to indicate row and 10 to indicate column. 10 to indicate
gray level. Then how many bit are needed to store such an image.
a) 1210729 b) 1310720 c) 100000 d) 1410720
4.If energy per unit area is 3 joules / m2 Intensity is 1.5 webers
then what will be the shutter time
a) 1 sec b) 2 sec c 0.2 sec d) 1 msec
5. If F(u) = A e-j2ft then the power spectrum p(u) is ________________.
a) A2 b) 2A c) A/2 d) A
6. If 64 no. of multiplications are required in a discreet Fourier transform then how many
operations are required with FFT
a) 32 b) 24 c) 34 d) 44
7. If the bit plans slicing is used to represent eight gray levels. If the third plane value for
every pixel is ‘1’ then the minimum intensity of the image will be
a) 8 b) 4 c) 32 d) 64
8. The resultant range of x, y) = f(x, y) + (x, y). Then to keep (x, 4) minimum. What
will be the process.
a) Subtraction b) Averaging c) Filtering d) Boosting
9. The standard deviation at any point in the average image with M samples is given by
a) g(x,y) = 1 / M (x, 4) b) g(x,4) = 1 / M i (x, 4)
c) g(x,4) = i f (x, 4) / i (x, 4) d) 2i (x, 4) / M2
10. Smoothing filters are
a) Spiral masses b) Sparial Enhancements
c) Frequency Enhancements d) Frequency domain filters
11. 2-D images sinusoidal interference pattern superimposed on image is called
a) Random noise b) Deterministic noise
c) Periodic noise d) Coherent noise
12. If the compression ratio is 10 then redundancy is
a) 99 b) 9.9 c) 0.9 d) 9.0
13. A Good compression method involves
a) Only coding redundancy
b) Coding and Inter-pixel redundant
c) Coding, Inter-pixel, Psycho visual Redundancy
d) Inter – Pixel Redundancy
14. Psycho – visual redundancy is associated with
a) Quantitative visual Information
b) Reversible Transformation
c) Quantifiable visual information
d) Frequency domain information
15. If the intensity I = 15 units and the change in the intensity to re-cognize the difference
is 5 units. The Weber ratio is
a) 0.33 b) 3 c) 45 d) 20
16. If the illumination i (x, 4) = 6
Reflectance r (x, 4) = 0.3. Then the image gray level f(x, y)
a) 20 b) 60 c) 1.8 d) 18
17. Diagonal neighbors of a pixel P (x, 4) are
a) (x +1, 4), (x – 1, 4), (x, 4 + 1), (x, 4 – 1)
b) (x +1, 4 + 1), (x +1, 4 - 1), (x - 1, 4 + 1), (x - 1, y – 1)
c) (x -1, y - 1), (x+1 , 4 - 1), (x +2, y –2), (x - 2, 4 +1)
d) (x – xo, y – yo) (x + xo, y + yo)
18. Choose the write set of statement
The relation is
a) Reflexive if for each aA, aRa
Symmetric if for each a, b A aRb bRb.
Transitive if a, b A then a + b RC c A
b) Reflexive if for each aA, aRa
Symmetric if for each a, b A aRb bRa.
Transitive if a, b A aRb and bRc aRc
c) aRa A
d) Rc aRc
19. If the focal length of the lance is 0.5 meters and world homogeneous coordinates
Wn = (20, 30, 15, 5). Then find Camera homogenous co-ordinates
a) Cn = (20, 30, 15, 85) b) (20, 30, 15, 35)
c) (20, 30, 15, 70) d) (20, 30, 15, 60)
20. O0 from the fovea ___________ are max; at 20o from fovea __________ are
maximum.
a) Rods cones b) Cons Rods c) Cons, Cons d) Rods Rods
Part –C
Four Marks Questions
1.By Warshall algorithm,
for j=3 for i = 1 to n; k=1 to n. set b(i, k) = _________
a) b (i ,k) + b(j, i) b) b(i ,k) + b(j, k)
c) b (i ,k) + b(i, j) d) b(i ,j) + b(j, k)
2. If the camera is place at z = 0; if the image point coordinates (x, y, 0) where
x0 = 20, y = 30 and the focal length is 40 units. Then the world coordinate
system points x, y are
a) 20, 30 b) 30, 30 c) 20, 20 d) 40, 30
3. if R = 1 0 0 0 Cos Sin 0 0
0 cos sin 0 ; Ro = -sin cos 0 0
0 -Sin Cos 0 0 0 1 0
0 0 0 1 0 0 0 1
a) Cos 0 sin 0
-sin cos cos cos cos 0
sin x cos cos cos sin 0
0 0 0 1
b) cos sin 0 0
-sin cos cos cos sin 0
sin cos cos cos cos 0
0 0 0 1
c) sin cos cos sin
cos sin sin cos cos
cos sin sin cos sin cos
0 0 0 1
d) None of the above
4. If f(u, v) = f(x, y) e –j2(ux + uy) dx dy
- -
Then the Fourier spectrum in the limit x x; y y will be
a) F(u, v) = sin (47) sin c(vy)
b) F(u, v) = A x y sin c(ux) / sin c(vy)
c) F(u, v) = A x y Sin c(ux) sin c(vy)
d) F(u, v) = A x y Sin c(vy) / sin c(ux)
5. Consider pixel arrangement P5
P3 P4
P1 P2
P0
If P1 = P3 =0, P0 = 3, P3 = 5, P4 = 0, P5 = 5
Then m distance between pixels with P0 and P5 will be
a) 10 b) 3 c) 9 d) Zero
6. Choose the correct sequence of layers of a photographic film.
a) Super coat, emulsion, substrate, backing layer, film base
b) Super coat, substrate, emulsion. Film base, backing layer
c) Super coat, Emulsion, substrate, film base, Backing layer
d) Backing layer, Emulsion, super coat, film base, substrate
7. Let use consider a Fourier spectra of an image ranging from 0 to 2.5 x 106. It we use a
eight bit system, the scaling factor c = _______________.
a) 39.8 b) 42.3 c) 56.7 d) 60
8. The polar form of F.T pair is f(r, 0 + o) f(w, + o)
Then the Cartesian FT pair will be
a) f( r Cos , r Sin ) F(w Cos , w Sin )
b) f(r Cos ( + o), r Sin( + o) F(w Cos(+o), w Sin( + o)
c) f(r Cos , r Sin( + o) F(w Cos(+o), w Sin)
d) f(r Cos o, r Sino F(w Cos(+o), w Sino)
9. SET A SET B
a) Super coat 1) It prevent Curling
b) Substrate 2) It is used for protection against scratches
c) Emulsion 3) It provides a adhesion of the emulsion to film case
d) Backing layer 4) It is a minute silver halide crystal
a) a – 1, b-2, c-3, d- 4 b) a – 2, b-3, c – 4, d – 1
b) a – 4, b – 3, c – 2, d – 1 d) None
10. SET A SET B
a) Reflexive 1) aRa
b) Symmetric 2) aRb implies bRa
c) Transitive 3) aRb and bRc implies aRc
a) a – 1, b-2, c-3 b) a – 2, b-3, c – 1
b) a – 1, b – 3, c – 2 d) None
11. Match the following sets
a) Cyan 1) Red Plus Green
b) Magenta 2) Green Plus Blue
c) Yellow 3) red plus Blue
d) Pink 4) Red plus white
a) a – 1, b-2, c-3, d- 4 b) a – 2, b-3, c – 4, d – 1
b) a – 4, b – 3, c – 2, d – 1 d) a – 3, b-2, c- 4, d-1
12. For the general compression system identify the name of the component in the figure
shown below. F(x, y)
fn (x, y)
a) a-Source decoder, b-channel Decoder, c-Source encoder, d-channel encoder
b) a-Source encode, b-channel encoder, c- channel decoder, d-source decoder
c) a-Channel encoder, b –source encoder, c-channel decoder, d-source decoder
d) None
13. SET A SET B
a) Huffman Coding 1) Which yields smallest possible numbers of code
symbols per source symbol
b) B-Code 2) It is a modification of Huffman Coding
c) Arithmetic Coding 3) It generates run block codes
d) Truncated Huffman Coding 4) In which each code word is made up continuous bits
and information bits.
a) a – 1, b-2, c-3, d- 4 b) a – 1, b-4, c – 4, d – 1
b) a – 4, b – 3, c – 2, d – 1 d) None
14. Match the following
SET A SET B
a) Fourier Spectrum 1) F(u, v) = [R2 (u, v) + i2 (u, v) 1/ 2
b) Phase 2) (u, v) = tan-1 [ I(u, v) / R (u, v)]
c) Power Spectrum 3) P(u, v) = | F (u, v) | 2
a) a – 1, b – 2, c- 3 b) a – 3, b-2, c-1
c) a – 1, b – 3, c –2 d) None
15. Match the following
SET A SET B
a) This scale is arithmetic 1) DIN scale
b) This scale uses logarithmic 2) ASA Scale
c) It is equivalent to DIN18 3) ASA 50
d) It is equivalent to DIN21 4) ASA 100
a) a – 2, b-1, c-3, d- 4 b) a – 2, b-3, c – 4, d – 1
b) a – 4, b – 3, c – 2, d – 1 d) None
DIGITAL IMAGE PROCESSING
ONE MARK TWO MARKS FOUR MARKS
1 D 51 B 101 B 1 B 1 B
2 A 52 C 102 A 2 B 2 A
3 A 53 B 103 B 3 B 3 B
4 A 54 C 104 B 4 C 4 C
5 B 55 A 105 A 5 A 5 A
6 B 56 B 6 B 6 D
7 A 57 A 7 B 7 A
8 A 58 A 8 B 8 B
9 A&C 59 B 9 A 9 B
10 C 60 B 10 * 10 A
11 D 61 C 11 D 11 B
12 B 62 A 12 C 12 B
13 C 63 A 13 A 13 B
14 C 64 B 14 C 14 A
15 A 65 A 15 A 15 A
16 B 66 C 16 C
17 D 67 C 17 B
18 C 68 * 18 B
19 A 69 A 19 B
20 B 70 C 20 B
21 A 71 A
22 B 72 A
23 A 73 B
24 B 74 B
25 B 75 C
26 C 76 A
27 A 77 A
28 C 78 B
29 A 79 A
30 B 80 A
31 C 81 B
32 A 82 A
33 D 83 D
34 A 84 B
35 B 85 A
36 C 86 B
37 B 87 C
38 C 88 A
39 A 89 A
40 C 90 C
41 D 91 A
42 A 92 A
43 A 93 A
44 B 94 B
45 B 95 B
46 A 96 A
47 * 97 A
48 B 98 A
49 A 99 B
50 A 100 B