20 + Interview Questions in Basic Of Digital Image Processing in Digital Image Processing Page 1 InterviewSolution

1.	What is the correct sequence of steps in image processing?(a) Image acquisition->Image enhancement->Image restoration->Color image processing->Compression->Wavelets and multi resolution processing->Morphological processing->Segmentation->Representation & description->Object recognition(b) Image acquisition->Image enhancement->Image restoration->Color image processing->Wavelets and multi resolution processing->Compression->Morphological processing->Segmentation->Representation & description->Object recognition(c) Image acquisition->Image enhancement->Color image processing->Image restoration->Wavelets and multi resolution processing->Compression->Morphological processing->Segmentation->Representation & description->Object recognition(d) Image acquisition->Image enhancement->Image restoration->Color image processing->Wavelets and multi resolution processing->Compression->Morphological processing->Representation & description->Segmentation->Object recognitionI had been asked this question by my school principal while I was bunking the class.My enquiry is from Steps in Image Processing topic in chapter Basic of Digital Image Processing of Digital Image Processing
Answer» Correct choice is (B) Image ACQUISITION->Image enhancement->Image restoration->Color image processing->Wavelets and multi resolution processing->Compression->Morphological processing->Segmentation->REPRESENTATION & DESCRIPTION->Object recognition The best explanation: Steps in image processing: Image acquisition-> Image enhancement->Image restoration->Color image processing->Wavelets and multi resolution processing->Compression->Morphological processing->Segmentation->Representation & description->Object recognition.

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2.	In which step of the processing, assigning a label (e.g., “vehicle”) to an object based on its descriptors is done?(a) Object recognition(b) Morphological processing(c) Segmentation(d) Representation & descriptionI have been asked this question in an interview for internship.I would like to ask this question from Steps in Image Processing in section Basic of Digital Image Processing of Digital Image Processing
Answer» The CORRECT OPTION is (a) Object recognition The explanation: Recognition is the process that ASSIGNS a LABEL (e.g., “vehicle”) to an object based on its descriptors. We conclude our coverage of digital image PROCESSING with the development of methods for recognition of individual objects.

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3.	What role does the segmentation play in image processing?(a) Deals with extracting attributes that result in some quantitative information of interest(b) Deals with techniques for reducing the storage required saving an image, or the bandwidth required transmitting it(c) Deals with partitioning an image into its constituent parts or objects(d) Deals with property in which images are subdivided successively into smaller regionsI got this question during an online interview.My query is from Steps in Image Processing topic in chapter Basic of Digital Image Processing of Digital Image Processing
Answer» Correct answer is (c) Deals with partitioning an IMAGE into its constituent parts or objects Explanation: Segmentation procedures partition an image into its constituent parts or objects. In general, autonomous segmentation is one of the most difficult TASKS in DIGITAL image processing. A rugged segmentation PROCEDURE brings the process a long way toward successful solution of imaging problems that require objects to be identified individually.

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4.	Which of the following step deals with tools for extracting image components those are useful in the representation and description of shape?(a) Segmentation(b) Representation & description(c) Compression(d) Morphological processingI have been asked this question during an interview.My doubt stems from Steps in Image Processing topic in section Basic of Digital Image Processing of Digital Image Processing
Answer» The CORRECT answer is (d) Morphological processing Easiest explanation: Morphological processing deals with TOOLS for extracting image components that are useful in the representation and description of shape. The material in this chapter begins a transition from processes that output IMAGES to processes that output image ATTRIBUTES.

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5.	What is the expanded form of JPEG?(a) Joint Photographic Expansion Group(b) Joint Photographic Experts Group(c) Joint Photographs Expansion Group(d) Joint Photographic Expanded GroupI had been asked this question in an interview for internship.I'm obligated to ask this question of Steps in Image Processing in section Basic of Digital Image Processing of Digital Image Processing
Answer» Correct choice is (B) Joint Photographic Experts Group To elaborate: Image compression is familiar (PERHAPS INADVERTENTLY) to most users of computers in the FORM of image file extensions, such as the JPG file extension used in the JPEG (Joint Photographic Experts Group) image compression standard.

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6.	How many number of steps are involved in image processing?(a) 10(b) 9(c) 11(d) 12I had been asked this question during an interview.The question is from Steps in Image Processing in section Basic of Digital Image Processing of Digital Image Processing
Answer» Right choice is (a) 10 Explanation: Steps in image PROCESSING: Image acquisition-> Image enhancement-> Image restoration-> Color image processing-> Wavelets and multi RESOLUTION processing-> COMPRESSION-> Morphological processing-> Segmentation-> REPRESENTATION & DESCRIPTION-> Object recognition.

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7.	What is the step that is performed before color image processing in image processing?(a) Wavelets and multi resolution processing(b) Image enhancement(c) Image restoration(d) Image acquisitionI had been asked this question in my homework.This question is from Steps in Image Processing topic in section Basic of Digital Image Processing of Digital Image Processing
Answer» Correct choice is (C) Image restoration The explanation is: Steps in image processing: Image acquisition-> Image enhancement-> Image restoration-> Color image processing-> Wavelets and multi resolution processing-> COMPRESSION-> Morphological processing-> Segmentation-> Representation & DESCRIPTION-> Object recognition.

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8.	What is the next step in image processing after compression?(a) Wavelets(b) Segmentation(c) Representation and description(d) Morphological processingThe question was asked during a job interview.Asked question is from Steps in Image Processing in section Basic of Digital Image Processing of Digital Image Processing
Answer» Right answer is (d) Morphological processing Explanation: Steps in IMAGE processing: Image acquisition-> Image enhancement-> Image restoration-> COLOR image processing-> Wavelets and multi resolution processing-> Compression-> Morphological processing-> Segmentation-> Representation & description-> OBJECT recognition.

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9.	What is the first and foremost step in Image Processing?(a) Image restoration(b) Image enhancement(c) Image acquisition(d) SegmentationI have been asked this question in a national level competition.My question comes from Steps in Image Processing in section Basic of Digital Image Processing of Digital Image Processing
Answer» The correct option is (c) IMAGE acquisition The explanation: Image acquisition is the first process in image PROCESSING. Note that acquisition could be as SIMPLE as being given an image that is already in digital form. Generally, the image acquisition STAGE involves PREPROCESSING, such as scaling.

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10.	The number of grey values are integer powers of:(a) 4(b) 2(c) 8(d) 1The question was asked by my college director while I was bunking the class.The query is from Introduction to Digital Image Processing topic in chapter Basic of Digital Image Processing of Digital Image Processing
Answer» Right OPTION is (b) 2 To elaborate: The GRAY VALUES are interpreted as the power of number of colors. In monochromatic image the number of colors are 2.

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11.	In which step of processing, the images are subdivided successively into smaller regions?(a) Image enhancement(b) Image acquisition(c) Segmentation(d) WaveletsThe question was posed to me by my college professor while I was bunking the class.This intriguing question originated from Steps in Image Processing topic in chapter Basic of Digital Image Processing of Digital Image Processing
Answer» RIGHT option is (d) Wavelets The BEST I can explain: Wavelets are the FOUNDATION for representing images in VARIOUS degrees of resolution. Wavelets are particularly used for image data compression and for pyramidal representation, in which images are subdivided successively into smaller REGIONS.

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12.	Which means the assigning meaning to a recognized object.(a) Interpretation(b) Recognition(c) Acquisition(d) SegmentationI got this question at a job interview.This interesting question is from Introduction to Digital Image Processing in section Basic of Digital Image Processing of Digital Image Processing
Answer» The correct ANSWER is (a) Interpretation Explanation: The interpretation is called the ASSIGNING MEANING to RECOGNIZED object.

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13.	A typical size comparable in quality to monochromatic TV image is of size.(a) 256 X 256(b) 512 X 512(c) 1920 X 1080(d) 1080 X 1080This question was addressed to me in an internship interview.The query is from Introduction to Digital Image Processing in portion Basic of Digital Image Processing of Digital Image Processing
Answer» The CORRECT option is (B) 512 X 512 Best explanation: A NORMAL T.V have 512 x 512 resolution.

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14.	Which gives a measure of the degree to which a pure colour is diluted by white light?(a) Saturation(b) Hue(c) Intensity(d) BrightnessThis question was addressed to me in quiz.This intriguing question originated from Introduction to Digital Image Processing in chapter Basic of Digital Image Processing of Digital Image Processing
Answer» The correct option is (a) Saturation To explain I would say: Saturation is COLOR RECOGNIZING capability of the human eye. HENCE a degree of DILUTION is MEASURED using saturation.

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15.	The range of values spanned by the gray scale is called:(a) Dynamic range(b) Band range(c) Peak range(d) Resolution rangeI had been asked this question in my homework.My question comes from Introduction to Digital Image Processing in chapter Basic of Digital Image Processing of Digital Image Processing
Answer» The correct answer is (a) Dynamic RANGE To explain: The valued SPANNED in gray SCALE IMAGE are depicted using dynamic range VALUES.

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16.	Which is a colour attribute that describes a pure colour?(a) Saturation(b) Hue(c) Brightness(d) IntensityI got this question in an internship interview.This is a very interesting question from Introduction to Digital Image Processing topic in section Basic of Digital Image Processing of Digital Image Processing
Answer» The CORRECT ANSWER is (b) Hue The best I can explain: The COLOR attribute of an image REFERS to the contrast of colors, which can be controlled using the Hue values.

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17.	What is pixel?(a) Pixel is the elements of a digital image(b) Pixel is the elements of an analog image(c) Pixel is the cluster of a digital image(d) Pixel is the cluster of an analog imageThis question was addressed to me in a job interview.The origin of the question is Introduction to Digital Image Processing in section Basic of Digital Image Processing of Digital Image Processing
Answer» The correct option is (a) Pixel is the ELEMENTS of a digital IMAGE The explanation is: An Image is a collection of INDIVIDUAL points referred as pixel, thus a Pixel is the ELEMENT of a digital image.

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18.	The spatial coordinates of a digital image (x,y) are proportional to:(a) Position(b) Brightness(c) Contrast(d) NoiseThe question was posed to me at a job interview.This key question is from Introduction to Digital Image Processing topic in portion Basic of Digital Image Processing of Digital Image Processing
Answer» RIGHT option is (B) Brightness To explain I would say: The Brightness levels are DISTRIBUTED over the spatial area. HENCE, the spatial coordinates are proportional to brightness levels.

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19.	Among the following image processing techniques which is fast, precise and flexible.(a) Optical(b) Digital(c) Electronic(d) PhotographicThis question was posed to me in homework.Question is from Introduction to Digital Image Processing in division Basic of Digital Image Processing of Digital Image Processing
Answer» CORRECT CHOICE is (b) DIGITAL To explain I would say: Digital image PROCESSING is more FLEXIBLE and agile techniques as it is fast, accurate and reliable.

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20.	An image is considered to be a function of a(x,y), where a represents:(a) Height of image(b) Width of image(c) Amplitude of image(d) Resolution of imageThis question was posed to me during a job interview.Question is taken from Introduction to Digital Image Processing in portion Basic of Digital Image Processing of Digital Image Processing
Answer» The CORRECT answer is (c) Amplitude of image Best explanation: The image is a COLLECTION of DOTS with a definite INTENSITY or amplitude.

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How many number of steps are involved in image processing?(a) 10(b) 9(c) 11(d) 12I had been asked this question during an interview.The question is from Steps in Image Processing in section Basic of Digital Image Processing of Digital Image Processing

The number of grey values are integer powers of:(a) 4(b) 2(c) 8(d) 1The question was asked by my college director while I was bunking the class.The query is from Introduction to Digital Image Processing topic in chapter Basic of Digital Image Processing of Digital Image Processing