Computer Graphics & Digital Image Processing MCQS with AnswerS SET 12

Computer Graphics & Digital Image Processing MCQS with AnswerS

We have made some Computer Graphics & Digital Image Processing MCQS (Mulitiple Choice Questions) which helps to prepare for competitive exams and various university exams or btech computer science 6th sem exams.This might be usefulgate preparation too.

63. What are applications of segmentation.
a.  Detection of isolated points.
b.  Detection of lines and edges in an image.
c.  Both a. and b.
d. None of these


64. The slope of the ramp is inversely proportional to the
a. Degree of blurring in the edge
b. Degree of contrast in the edge
c. Degree of clarity in the edge
d. None of these

65. Which of these is not a  type of discontinuity in digital image?
a. Points
b. Lines
c. Edges
d. Coordinates




66. Which of these is not a  type of discontinuity in digital image?
a. Points
b. Lines
c. Edges
d. Coordinates

67. Find the number of bits to store a 128_128 image with 64 gray levels.
a. 98304 bytes
b. 98304 bits
c. 98655 bytes
d. 98306 bits

68. Transform coding is
a. Linear process
b. Spatial process
c. Differential process
d. None of these
69. The number of coefficients produced in transform coding is __________ to the number of pixels transformed.
a. More than
b. Less than
c. Equal to
d. Can’t say

70. Which of these is not a basic step in JPEG?
a.DCT (Discrete Cosine Transformation)
b.  Quantization
c. Zigzag Scan
d. Segmentation

71.  What is JPEG?
a. Junior Photographic Expert Group
b. Joint Photographic Expert Group
c. Joint Picture Expert Group
d. None of these

72. cThe number of coefficients produced in transform coding is __________ to the number of pixels transformed.
a. More than
b. Less than
c. Equal to
d. Can’t say

73. Define compression ratio.
a. Original size / compressed size
b. Compressed size/ Original size 
c. Both a and b
d. None of these
74. Run-length Encoding,( RLE) is a technique used to _______ the size of a
repeating string of characters
a. Reduce
b. Increase
c. Equal
d. All of these
75. What are different Compression Methods?
a. Run Length Encoding (RLE)
b. Arithmetic coding
c. Huffman coding
d. All of these

76.   What are the approaches for blind image restoration?
a. Direct measurement
b. Indirect estimation
c. Both a. and b.
d. None of these

77. What are the methods of algebraic approach?
a. Unconstraint restoration approach
b. Constraint restoration approach
c. Both a and b
d. None of these
78  What are the properties in Linear operator?
a. Additivity
b. Homogenity
c. Both a and b
d. None of these



79. What are three methods of estimating the degradation function?
a. Observation
b. Experimentation
c. Mathematical modeling.
d. All of the above
80. Gray-level interpolation deals with the assignment of gray levels to _________ in the spatially transformed image.
a. Pixels
b. Coordinates
c. Points
d. Edges
81. Spatial transformation is defined as the rearrangement of pixels on a/an :
a. Image plane
b. Line
c. Coordinate Plane
d. Cant say
82. Highlighting a specific range of gray levels in an image is referred to as
a. Gray-level interpretation
b. Gray-level interpolation
c. Gray level slicing
d. None of these

83. Enhancement at any point in an image depends only on the gray level at that point is referred to as :
a. Signaling
b. Image processing
c. Restoration
d. Point processing
84.  Which of these is not a type of derivative filters?
a. Perwitt
b. Roberts cross gradient
c. Sobel
d. Huffman

85. The 100th percentile is maximum filter is used in finding_______ points in an image.
a. Brightest
b. Darkest
c. Both a. and b.
d.  None of These

86. The 0th percentile filter is minimum filter used for finding ___________ points
in an image.

a. Brightest
b. Darkest
c. Both a. and b.
d.  None of These

87. The output of a smoothing, linear spatial filter is the average of the pixels contain in the neighborhood of the filter mask, these filters are called :
a. Averaging
b. Spatial
c. Derivative
d. All of these
88.  Process of moving the filter mask from point to point in an image is done by :
a. Averaging
b. Spatial
c. Derivative
d. None of these
89. Frequency domain techniques are based on modifying the __________ transform of an image.
a. Laplace
b. Fourier
c. Both a and b
d. None of these
90. Which of these is not a property of 2D fourier transform.
a.    Separability
b.    Translation
c.    Periodicity and Conjugate property
d.     Linearity

91. Which of these are applications of DIP.
a. Remote sensing
b. Image transmission and storage for business application
c. Medical imaging
d. All of these

92. The digital image is an array of ____________ numbers that is represented by a finite no of bits.
a. Real or complex
b. Real and complex
c. Both a. and b.
d. None of these
93. Which of these is not a property of Slant transform?
a. Slant transform is real and orthogonal.
b. Slant transform is a fast transform
c. Slant transform has very good energy compaction for images
d. Slant transform is a slow transform

94. Which of these is not a property of cosine transform?
a.  Real & orthogonal.
b. Fast transform.
c. Has excellent energy compaction for highly correlated data
d. Slow transform

95.  Illumination is the amount of source light ________ on the scene.
a. Incident
b. Reflectance
c. Refracted
d. None of these




96. Reflectance is the amount of light __________by the object in the scene.
a. Refracted
b. Incident
c. Reflected
d. All of these

97. Sampling means digitizing the :
a. Co-ordinate value
b. Amplitude
c. Altitude
d. None of these

98. Quantization means digitizing the:
a. Co-ordinate value
b. Amplitude
c. Altitude
d. None of these

99. Which of these is not a property of two-dimensional DFT
a. Symmetric
b. Periodic extensions
c. Sampled Fourier transform
d. Linearity

100. The Properties of one-dimensional DFT are:
a. The DFT and unitary DFT matrices are symmetric.
b. The extensions of the DFT and unitary DFT of a sequence and their inverse transforms are periodic with period N.
c. The DFT or unitary DFT of a real sequence is conjugate symmetric about N/2

d. All of these

Computer Graphics & Digital Image Processing MCQS with AnswerS
63 C
64 A
65 D
66 D
67 B
68 A
69 C
70 D
71 B
72 A
73 C
74 A
75 D
76 C
77 C
78 C
79 D
80 A
81 A
82 C
83 D
84 D
85 A
86 B
87 A
88 B
89 B
90 D
91 D
92 A
93 D
94 D
95 A
96 C
97 A
98 B
99 D
100 D

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One Response to “Computer Graphics & Digital Image Processing MCQS with AnswerS SET 12”

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