Digital Image Processing Questions and Answers
Q1.
Which of the following color models are used for color printing?
Answer :
CMY and CMYK
Q2.
Which of the following measures are not used to describe a region?
Answer :
Number of pixels alone
Q3.
What is the Euler number of a region with polygonal network containing V,Q and F as the number of vertices, edges and faces respectively?
Answer :
V-Q+F
Q4.
Which of the following of a boundary is defined as the line perpendicular to the major axis?
Answer :
Minor axis
Q5.
Based on the 4-directional code, the first difference of smallest magnitude is called as:
Answer :
Shape number
Q6. Which of the following techniques of boundary descriptions have the physical interpretation of boundary shape?
Answer : Statistical moments
Q7.
Using rough rule of thumb, and assuming powers of 2 for convenience, what image size are about the smallest images that can be expected to be reasonably free of objectionable sampling checkerboards and false contouring?
Answer :
256*256pixels and 64 gray levels
Q8.
For a band-limited function, which Theorem says that “if the function is sampled at a rate equal to or greater than twice its highest frequency, the original function can be recovered from its samples”?
Answer :
Shannon sampling theorem
Q9.
The two steps: one is the creation of new pixel locations, and other is the assignment of gray levels to those new locations are involved in ____
Answer :
Zooming
Q10.
Row-column deletion method of Image Shrinking is an equivalent process to which method of Zooming?
Answer :
Pixel Replication
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