Digital Image Processing Sharpening Spatial Filters Online Exam Quiz
Digital Image Processing Sharpening Spatial Filters GK Quiz. Question and Answers related to Digital Image Processing Sharpening Spatial Filters. MCQ (Multiple Choice Questions with answers about Digital Image Processing Sharpening Spatial Filters
Which of the following is the primary objective of sharpening of an image?
Options
A : Blurring the image
B : Highlight fine details in the image
C : Increase the brightness of the image
D : Decrease the brightness of the image
If f(x,y) is an image function of two variables, then the first order derivative of a one dimensional function, f(x) is:
Options
A : f(x+1)-f(x)
B : f(x)-f(x+1)
C : f(x-1)-f(x+1)
D : f(x)+f(x-1)
What is the thickness of the edges produced by first order derivatives when compared to that of second order derivatives?
Options
A : Finer
B : Equal
C : Thicker
D : Independent
Which of the following derivatives produce a double response at step changes in gray level?
Options
A : First order derivative
B : Third order derivative
C : Second order derivative
D : First and second order derivatives
In which of the following cases, we wouldn’t worry about the behaviour of sharpening filter?
Options
A : Flat segments
B : Step discontinuities
C : Ramp discontinuities
D : Slow varying gray values
In spatial domain, which of the following operation is done on the pixels in sharpening the image?
Options
A : Integration
B : Average
C : Median
D : Differentiation
Which of the following is the valid response when we apply a first derivative?
Options
A : Non-zero at flat segments
B : Zero at the onset of gray level step
C : Zero in flat segments
D : Zero along ramps
Image differentiation enhances the edges, discontinuities and deemphasizes the pixels with slow varying gray levels.
Options
A : True
B : False
C :
D :
Image sharpening process is used in electronic printing.
Options
A : True
B : False
C :
D :
Isolated point is also called as noise point.
Options
A : True
B : False
C :
D :
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