81. What is the basis for numerous spatial domain processing techniques?
A. Transformations
B. Scaling
C. Histogram
D. None of the Mentioned
82. In the _______ image we notice that the components of the histogram are concentrated on the low side of the intensity scale.
A. bright
B. dark
C. colorful
D. All of the Mentioned
83. What is Histogram Equalisation also called?
A. Histogram Matching
B. Image Enhancement
C. Histogram linearisation
D. None of the Mentioned
84. What is Histogram Matching also called?
A. Histogram Equalisation
B. Histogram Specification
C. Histogram linearisation
D. None of the Mentioned
85. Histogram Equalisation is mainly used for ________
A. Image enhancement
B. Blurring
C. Contrast adjustment
D. None of the Mentioned
86. To reduce computation if one utilizes non-overlapping regions, it usually produces the ______ effect.
A. Dimming
B. Blurred
C. Blocky
D. None of the Mentioned
87. What does SEM stands for?
A. Scanning Electronic Machine
B. Self Electronic Machine
C. Scanning Electron Microscope
D. Scanning Electric Machine
88. The type of Histogram Processing in which pixels are modified based on the intensity distribution of the image is called _______________.
A. Intensive
B. Local
C. Global
D. Random
89. Which type of Histogram Processing is suited for minutely detailed enhancements?
A. Intensive
B. Local
C. Global
D. Random
90. In uniform PDF, the expansion of PDF is _________
A. Portable Document Format
B. Post Derivation Function
C. Previously Derived Function
D. Probability Density Function
91. The histogram of a digital image with gray levels in the range [0, L-1] is represented by a discrete function:
A. h(r_k)=n_k
B. h(r_k )=n/n_k
C. p(r_k )=n_k
D. h(r_k )=n_k/n
92. How is the expression represented for the normalized histogram?
A. p(r_k )=n_k
B. p(r_k )=n_k/n
C. p(r_k)=nn_k
D. p(r_k )=n/n_k
93. Which of the following conditions does the T(r) must satisfy?
A. T(r) is double-valued and monotonically decreasing in the interval 0≤r≤1; and
0≤T(r)≤1 for 0≤r≤1
B. T(r) is double-valued and monotonically increasing in the interval 0≤r≤1; and
0≤T(r)≤1 for 0≤r≤1
C. T(r) is single-valued and monotonically decreasing in the interval 0≤r≤1; and
0≤T(r)≤1 for 0≤r≤1
D. T(r) is single-valued and monotonically increasing in the interval 0≤r≤1; and
0≤T(r)≤1 for 0≤r≤1
94. The inverse transformation from s back to r is denoted as:
A. s=T-1(r) for 0≤s≤1
B. r=T-1(s) for 0≤r≤1
C. r=T-1(s) for 0≤s≤1
D. r=T-1(s) for 0≥s≥1
95. The probability density function p_s (s) of the transformed variable s can be obtained by using which of the following formula?
A. p_s (s)=p_r (r)|dr/ds|
B. p_s (s)=p_r (r)|ds/dr|
C. p_r (r)=p_s (s)|dr/ds|
D. p_s (s)=p_r (r)|dr/dr|
96. A transformation function of particular importance in image processing is represented in which of the following form?
A. s=T(r)=∫0(2r)pr (ω)dω
B. s=T(r)=∫0(r-1)pr (ω)dω
C. s=T(r)=∫0(r/2)pr (ω)dω
D. s=T(r)=∫0 pr (ω)dω
97. Histogram equalization or Histogram linearization is represented by of the following equation:
A. sk =∑kj =1 nj/n k=0,1,2,……,L-1
B. sk =∑kj =0 nj/n k=0,1,2,……,L-1
C. sk =∑kj =0 n/nj k=0,1,2,……,L-1
D. sk =∑kj =n nj/n k=0,1,2,……,L-1
98. What is the method that is used to generate a processed image that has a specified histogram?
A. Histogram linearization
B. Histogram equalization
C. Histogram matching
D. Histogram processing
99. Histograms are the basis for numerous spatial domain processing techniques.
A. True
B. False
100. In a dark image, the components of the histogram are concentrated on which side of the greyscale?
A. High
B. Medium
C. Low
D. Evenly distributed