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

1.

Which of the following is NOT is not a type of Adjacency?(a) 4-Adjacency(b) 8-Adjacency(c) m-Adjacency(d) None of the MentionedI got this question in exam.My enquiry is from Relationships between Pixels in portion Image Restoration and Reconstruction of Digital Image Processing

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Correct answer is (d) None of the MENTIONED

To EXPLAIN: All the mentioned ADJACENCY types are valid.
Discussion
2.

The distance between pixels p and q, the pixels have a distance less than or equal to some value of radius r, form a square centred at (x,y) is called :(a) Euclidean distance(b) Chessboard distance(c) City-Block distance(d) None of the MentionedThe question was posed to me by my college director while I was bunking the class.My doubt stems from Relationships between Pixels in portion Image Restoration and Reconstruction of Digital Image Processing

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The correct option is (B) Chessboard distance

To explain I WOULD SAY: Distance measured by forming a square around the centre is called Chessboard distance.
Discussion
3.

The distance between pixels p and q, the pixels have a distance less than or equal to some value of radius r, form a diamond centred at (x,y) is called :(a) Euclidean distance(b) Chessboard distance(c) City-Block distance(d) None of the MentionedI got this question during an internship interview.This interesting question is from Relationships between Pixels in portion Image Restoration and Reconstruction of Digital Image Processing

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Discussion
4.

The distance between pixels p and q, the pixels have a distance less than or equal to some value of radius r centred at (x,y) is called :(a) Euclidean distance(b) City-Block distance(c) Chessboard distance(d) None of the MentionedI got this question during a job interview.I want to ask this question from Relationships between Pixels topic in section Image Restoration and Reconstruction of Digital Image Processing

Answer» CORRECT ANSWER is (a) Euclidean distance

Best explanation: Euclidean distance is measured using a radius from a DEFINED CENTRE.
Discussion
5.

For a region R, the set of points that are adjacent to the complement of R is called as ________(a) Boundary(b) Border(c) Contour(d) All of the MentionedThe question was asked during an online exam.I'd like to ask this question from Relationships between Pixels topic in portion Image Restoration and Reconstruction of Digital Image Processing

Answer» CORRECT option is (d) All of the Mentioned

Explanation: The words BOUNDARY, border and CONTOUR mean the same SET.
Discussion
6.

If an image contains K disjoint regions, what does the union of all the regions represent?(a) Background(b) Foreground(c) Outer Border(d) Inner BorderThis question was addressed to me in an interview for internship.I would like to ask this question from Relationships between Pixels in section Image Restoration and Reconstruction of Digital Image Processing

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Correct OPTION is (b) FOREGROUND

To ELABORATE: The union of all regions is called Foreground and its COMPLEMENT is called the Background.
Discussion
7.

Two regions are said to be ___________ if their union forms a connected set.(a) Adjacent(b) Disjoint(c) Closed(d) None of the MentionedI got this question in exam.Asked question is from Relationships between Pixels in section Image Restoration and Reconstruction of Digital Image Processing

Answer» RIGHT ANSWER is (a) ADJACENT

The explanation is: The REGIONS are said to be Adjacent to each other.
Discussion
8.

If R is a subset of pixels, we call R a _________ of the image if R is a connected set.(a) Disjoint(b) Region(c) Closed(d) AdjacentThis question was posed to me in quiz.Query is from Relationships between Pixels in section Image Restoration and Reconstruction of Digital Image Processing

Answer» RIGHT choice is (B) Region

Best EXPLANATION: R is called a Region of the IMAGE.
Discussion
9.

If S is a subset of pixels, pixels p and q are said to be ____________ if there exists a path between them consisting of pixels entirely in S.(a) continuous(b) ambiguous(c) connected(d) none of the MentionedI had been asked this question during an interview.Query is from Relationships between Pixels topic in division Image Restoration and Reconstruction of Digital Image Processing

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The correct choice is (c) connected

The explanation: Pixels p and Q are said to be connected if there EXISTS a PATH between them consisting of pixels ENTIRELY in S.
Discussion
10.

In 4-neighbours of a pixel p, how far are each of the neighbours located from p?(a) one pixel apart(b) four pixels apart(c) alternating pixels(d) none of the MentionedThe question was asked during a job interview.Question is from Relationships between Pixels in division Image Restoration and Reconstruction of Digital Image Processing

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Right answer is (a) ONE PIXEL apart

To explain I would SAY: Each pixel is a unit distance apart from the pixel P.
Discussion
11.

The absence of receptors is in the retinal area called _____________(a) Lens(b) Ciliary body(c) Blind spot(d) FoveaI had been asked this question during an online exam.My enquiry is from Elements of Visual Perception in portion Image Restoration and Reconstruction of Digital Image Processing

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The CORRECT answer is (c) Blind SPOT

For explanation: EXCEPT the blind spot, receptors are RADIALLY distributed.
Discussion
12.

Ratio of number of rods to the number of cones is _______(a) 1:20(b) 1:2(c) 1:1(d) 1:5I had been asked this question in homework.My enquiry is from Elements of Visual Perception in portion Image Restoration and Reconstruction of Digital Image Processing

Answer» RIGHT answer is (a) 1:20

To explain: No of RODS: 6 to 7 MILLION, No of rods: 75 to 150.
Discussion
13.

________ serve to a general, overall picture of the field of view.(a) Cones(b) Rods(c) Retina(d) All of the MentionedThis question was addressed to me during an internship interview.The above asked question is from Elements of Visual Perception topic in section Image Restoration and Reconstruction of Digital Image Processing

Answer» RIGHT option is (b) Rods

The best EXPLANATION: Rods PRODUCE an overall PICTURE of the field of view.
Discussion
14.

What is the function of Iris?(a) Source of nutrition(b) Detect color(c) Varies focal length(d) Control amount of lightI had been asked this question by my college professor while I was bunking the class.The above asked question is from Elements of Visual Perception in portion Image Restoration and Reconstruction of Digital Image Processing

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The CORRECT option is (d) Control amount of light

The explanation is: Iris is responsible for CONTROLLING the amount of light that enters the HUMAN EYE.
Discussion
15.

The inner most membrane of the human eye is(a) Blind Spot(b) Sclera(c) Choroid(d) RetinaThis question was posed to me by my college director while I was bunking the class.This intriguing question comes from Elements of Visual Perception topic in portion Image Restoration and Reconstruction of Digital Image Processing

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The CORRECT answer is (d) Retina

Explanation: Retina is the innermost MEMBRANE of the HUMAN eye.
Discussion
16.

What is brightness adaptation?(a) Changing the eye’s overall sensitivity(b) Changing the eye’s imaging ability(c) Adjusting the focal length(d) Transition from scotopic to photopic visionI got this question in an online interview.The doubt is from Elements of Visual Perception topic in section Image Restoration and Reconstruction of Digital Image Processing

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Discussion
17.

Range of light intensity levels to which the human eye can adapt (in Log of Intensity-mL)(a) 10^-6 to 10^-4(b) 10^4 to 10^6(c) 10^-6 to 10^4(d) 10^-5 to 10^5This question was addressed to me in examination.My doubt stems from Elements of Visual Perception in section Image Restoration and Reconstruction of Digital Image Processing

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Right CHOICE is (c) 10^-6 to 10^4

Easy EXPLANATION: RANGE of light INTENSITY to which human eye can ADAPT is enormous

and about the order 10^10 from 10^-6 to 10^4.
Discussion
18.

What is subjective brightness?(a) Related to intensity(b) Related to brightness(c) Related to image perception(d) Related to image formationI had been asked this question by my school principal while I was bunking the class.Asked question is from Elements of Visual Perception in chapter Image Restoration and Reconstruction of Digital Image Processing

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The CORRECT option is (a) Related to INTENSITY

Best explanation: It is the intensity as PERCEIVED by the HUMAN eye.
Discussion
19.

How is image formation in the eye different from that in a photographic camera(a) No difference(b) Variable focal length(c) Varying distance between lens and imaging plane(d) Fixed focal lengthThis question was addressed to me during an interview.This intriguing question comes from Elements of Visual Perception topic in portion Image Restoration and Reconstruction of Digital Image Processing

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Correct answer is (b) Variable focal length

The explanation is: FIBERS in ciliary body VARY SHAPE of the LENS THEREBY varying its focal length.
Discussion
20.

Which of the following is a receptor in the retina of human eye?(a) Rods(b) Cones(c) Rods and Cones(d) Neither Rods nor ConesI had been asked this question during an online exam.This is a very interesting question from Elements of Visual Perception topic in chapter Image Restoration and Reconstruction of Digital Image Processing

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Correct option is (c) RODS and Cones

Easy explanation: Rods are long slender receptors while cones are shorter and THICKER receptors.
Discussion