Explore topic-wise MCQs in Digital Image Processing.

This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Image Processing knowledge and support exam preparation. Choose a topic below to get started.

1.

The domain that refers to image plane itself and the domain that refers to Fourier transform of an image is/are :

A. Spatial domain in both
B. Frequency domain in both
C. Spatial domain and Frequency domain respectively
D. Frequency domain and Spatial domain respectively
Answer» D. Frequency domain and Spatial domain respectively
Discussion
2.

For pixels p(x, y), q(s, t), the chessboard distance between p and q is defined as:a) D(p, q) = [(x – s)2 + (y – t)2]1/2b) D(p, q) = |x – s| + |y – t|c) D(p, q) = max (|x – s| + |y – t

A. D(p, q) = [(x – s)2 + (y – t)2]1/2
B. D(p, q) = |x – s| + |y – t|
C. D(p, q) = max (|x – s| + |y – t|)
D. None of the mentioned
Answer» D. None of the mentioned
Discussion
3.

For pixels p(x, y), q(s, t), the city-block distance between p and q is defined as:a) D(p, q) = [(x – s)2 + (y – t)2]1/2b) D(p, q) = |x – s| + |y – t|c) D(p, q) = max (|x – s| + |y – t

A. D(p, q) = [(x – s)2 + (y – t)2]1/2
B. D(p, q) = |x – s| + |y – t|
C. D(p, q) = max (|x – s| + |y – t|)
D. None of the mentioned
Answer» C. D(p, q) = max (|x – s| + |y – t|)
Discussion
4.

For pixels p(x, y), q(s, t), the Euclidean distance between p and q is defined as:a) D(p, q) = [(x – s)2 + (y – t)2]1/2b) D(p, q) = |x – s| + |y – t|c) D(p, q) = max (|x – s| + |y – t

A. D(p, q) = [(x – s)2 + (y – t)2]1/2
B. D(p, q) = |x – s| + |y – t|
C. D(p, q) = max (|x – s| + |y – t|)
D. None of the mentioned
Answer» B. D(p, q) = |x – s| + |y – t|
Discussion
5.

A pixel p at coordinates (x, y) has neighbors whose coordinates are given by:(x+1, y+1), (x+1, y-1), (x-1, y+1), (x-1, y-1)This set of pixels is called ____________

A. 4-neighbors of p
B. Diagonal neighbors
C. 8-neighbors
D. None of the mentioned
Answer» C. 8-neighbors
Discussion
6.

A pixel p at coordinates (x, y) has neighbors whose coordinates are given by:(x+1, y), (x-1, y), (x, y+1), (x, y-1)This set of pixels is called ____________

A. 4-neighbors of p
B. Diagonal neighbors
C. 8-neighbors
D. None of the mentioned
Answer» B. Diagonal neighbors
Discussion
7.

FOR_PIXELS_P(X,_Y),_Q(S,_T),_THE_CITY-BLOCK_DISTANCE_BETWEEN_P_AND_Q_IS_DEFINED_AS:?$

A. D(p, q) = [(x – s)<sup>2</sup> + (y – t)<sup>2</sup>]<sup>1/2</sup>
B. D(p, q) = |x – s| + |y – t|
C. D(p, q) = max (|x – s| + |y – t|)
D. None of the mentioned
Answer» C. D(p, q) = max (|x ‚Äö√Ñ√∂‚àö√ë‚àö¬® s| + |y ‚Äö√Ñ√∂‚àö√ë‚àö¬® t|)
Discussion
8.

The domain that refers to image plane itself and the domain that refers to Fourier transform of an image is/are :$

A. Spatial domain in both
B. Frequency domain in both
C. Spatial domain and Frequency domain respectively
D. Frequency domain and Spatial domain respectively
Answer» D. Frequency domain and Spatial domain respectively
Discussion
9.

For pixels p(x, y), q(s, t), the chessboard distance between p and q is defined as:$

A. D(p, q) = [(x – s)<sup>2</sup> + (y – t)<sup>2</sup>]<sup>1/2</sup>
B. D(p, q) = |x – s| + |y – t|
C. D(p, q) = max (|x – s| + |y – t|)
D. None of the mentioned
Answer» D. None of the mentioned
Discussion
10.

For Image Enhancement a general-approach is to use a function of values of f (input image) in a predefined neighborhood of (x, y) to determine the value of g (output image) at (x, y). The techniques that uses such approaches are called ________

A. Contouring
B. Contrast stretching
C. Mask processing
D. None of the mentioned
Answer» D. None of the mentioned
Discussion
11.

What is the technique for a gray-level transformation function called, if the transformation would be to produce an image of higher contrast than the original by darkening the levels below some gray-level m and brightening the levels above m in the original image.

A. Contouring
B. Contrast stretching
C. Mask processing
D. Point processing
Answer» C. Mask processing
Discussion
12.

For pixels p(x, y), q(s, t), the Euclidean distance between p and q is defined as?

A. D(p, q) = [(x – s)<sup>2</sup> + (y – t)<sup>2</sup>]<sup>1/2</sup>
B. D(p, q) = |x – s| + |y – t|
C. D(p, q) = max (|x – s| + |y – t|)
D. None of the mentioned
Answer» B. D(p, q) = |x ‚Äö√Ñ√∂‚àö√ë‚àö¬® s| + |y ‚Äö√Ñ√∂‚àö√ë‚àö¬® t|
Discussion
13.

For pixels p(x, y), q(s, t), and z(v, w), D is a distance function or metric if:

A. D(p, q) ‚â• 0
B. D(p, q) = D(q, p)
C. D(p, z) ≤ D(p, q) + D(q, z)
D. All of the mentioned
Answer» E.
Discussion
14.

Let R be a subset of pixels in an image. How can we define the contour of R?

A. If R is a region, and the set of pixels in R have one or more neighbors that are not in R
B. If R is an entire image, then the set of pixels in the first and last rows and columns of R
C. All of the mentioned
D. None of the mentioned
Answer» D. None of the mentioned
Discussion
15.

Let S, a subset of pixels in an image, is said to be a connected set if:

A. If for any pixel p in S, the set of pixels that are connected to it in Sis only one
B. If it only has one connected component
C. If S is a region
D. All of the mentioned
Answer» E.
Discussion
16.

Two pixels p and q having gray values from V, the set of gray-level values used to define adjacency, are m-adjacent if:

A. q is in N<sub>4</sub>(p)
B. q is in N<sub>D</sub>(p) and the set N<sub>4</sub>(p) ‚à© N<sub>4</sub>(q) has no pixels whose values are from V
C. Any of the mentioned
D. None of the mentioned
Answer» D. None of the mentioned
Discussion
17.

What is the set of pixels of 8-neighbors of pixel p at coordinates (x, y)?

A. (x+1, y), (x-1, y), (x, y+1), (x, y-1), (x+2, y), (x-2, y), (x, y+2), (x, y-2)
B. (x+1, y), (x-1, y), (x, y+1), (x, y-1), (x+1, y+1), (x+1, y-1), (x-1, y+1), (x-1, y-1)
C. (x+1, y+1), (x+1, y-1), (x-1, y+1), (x-1, y-1), (x+2, y+2), (x+2, y-2), (x-2, y+2), (x-2, y-2)
D. (x+2, y), (x-2, y), (x, y+2), (x, y-2), (x+2, y+2), (x+2, y-2), (x-2, y+2), (x-2, y-2)
Answer» C. (x+1, y+1), (x+1, y-1), (x-1, y+1), (x-1, y-1), (x+2, y+2), (x+2, y-2), (x-2, y+2), (x-2, y-2)
Discussion
18.

A pixel p at coordinates (x, y) has neighbors whose coordinates are given by:

A. , (x-1, y), (x, y+1), (x, y-1)
B.
C. 4-neighbors of p
Answer» B.
Discussion