Digital Image Processing Questions and Answers
Q1.
The range of values spanned by the gray scale is called:
Answer :
Dynamic range
Q2.
The number of grey values are integer powers of:
Answer :
2
Q3.
How many number of steps are involved in image processing?
Answer :
10
Q4.
What is the correct sequence of steps in image processing?
Answer :
Image acquisition->Image enhancement->Image restoration->Color image processing->Wavelets and multi resolution processing->Compression->Morphological processing->Segmentation->Representation & description->Object recognition
Q5.
Validate the statement:
“For a given image in one-dimension given by function f(x, y), to sample the function we take equally spaced samples, superimposed on the function, along a horizontal line. However, the sample values still span (vertically) a continuous range of gray-level values. So, to convert the given function into a digital function, the gray-level values must be divided into various discrete levels.”
Answer :
True
Q6.
Assume that an image f(x, y) is sampled so that the result has M rows and N columns. If the values of the coordinates at the origin are (x, y) = (0, 0), then the notation (0, 1) is used to signify :
Answer :
Second sample along first row
Q7.
An image whose gray-levels span a significant portion of gray scale have _______ dynamic range while an image with dull, washed out gray look have ______ dynamic range.
Answer :
High and Low respectively
Q8.
Images quantised with insufficient brightness levels will lead to the occurrence of _____
Answer :
False Contours
Q9.
Dynamic range of imaging system is a ratio where the upper limit is determined by
Answer :
Saturation
Q10.
The section of the real plane spanned by the coordinates of an image is called the ______
Answer :
Spacial Domain
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