Image Processing  Unit - I mcq

 

 

1. The spatial coordinates of a digital image (x,y) are proportional to:
(A) Position
(B) Brightness
(C) Contrast
(D) Noise

Correct option is B

2. Among the following image processing techniques which is fast, precise and flexible..
(A) Optical
(B) Digital
(C) Electronics
(D) Photography

Correct option is B

3. 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 image

Correct option is C

4. 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 image

Correct option is A

5. The range of values spanned by the gray scale is called:
(A) Dynamic range
(B) Band range
(C) Peak range
(D) Resolution range

Correct option is A

6. Which is a colour attribute that describes a pure colour?
(A) Saturation
(B) Hue
(C) Brightness
(D) Intensity

Correct option is B

7. The smallest discernible change in intensity level is called ____________
(A) Intensity Resolution
(B) Contour
(C) Contrast
(D) Saturation

Correct option is A

8. Which means the assigning meaning to a recognized object
(A) Interpretation
(B) Recognition
(C) Acquisition
(D) Segmentation

Correct option is A

9. 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 1080

Correct option is B

10. The number of grey values are integer powers of:
(A) 4
(B) 2
(C) 8
(D) 1

Correct option is B

11. What is the first and foremost step in Image Processing?
(A) Image restoration
(B) Image enhancement
(C) Image acquisition
(D) Segmentation

Correct option is C

12. In which step of processing, the images are subdivided successively into smaller regions?
(A) Image enhancement
(B) Image acquisition
(C) Segmentation
(D) Wavelets

Correct option is D

13. What is the next step in image processing after compression? 

(A) Wavelets
(B) Segmentation
(C) Representation and description
(D) Morphological processing

Correct option is D

14. 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 acquisition

Correct option is C

15. How many number of steps are involved in image processing?

(A) 10
(B) 9
(C) 11
(D) 12

Correct option is A

16. 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 Group

Correct option is B

17. 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 functions
(C) Compression
(D) Morphological processing

Correct option is D

18. In which step of the processing, assigning a label (e.g., “vehicle”) to an object based on its descriptors is done?

(A) Segmentation
(B) Representation & description functions
(C) Object recognition
(D) Morphological processing

Correct option is C

19. 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 regions

Correct option is C

20. 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 recognition

Correct option is B

21. To convert a continuous sensed data into Digital form, which of the following is required?
(A) Sampling
(B) Quantization
(C) Both Sampling and Quantization
(D) Neither Sampling nor Quantization

Correct option is C

22. To convert a continuous image f(x, y) to digital form, we have to sample the function in __________
(A) Coordinates
(B) Amplitude
(C) All of the mentioned
(D) None of these

Correct option is C

23. For a continuous image f(x, y), how could be Sampling defined?
(A) Digitizing the coordinate values
(B) Digitizing the amplitude values
(C) All of the mentioned
(D) None of the mentioned

Correct option is A

24. For a continuous image f(x, y), Quantization is defined as.
(A) Digitizing the coordinate values
(B) Digitizing the amplitude values
(C) All of the mentioned
(D) None of these

Correct option is B

25. How is sampling been done when an image is generated by a single sensing element combined with mechanical motion? 

(A) The number of sensors in the strip defines the sampling limitations in one direction and Mechanical motion in the other direction.
(B) The number of sensors in the sensing array establishes the limits of sampling in both directions.
(C) The number of mechanical increments when the sensor is activated to collect data.
(D) None of these

Correct option is C

26. The resulting image of sampling and quantization is considered a matrix of real numbers. By what name(s) the element of this matrix array is called __________
(A) Image element or Picture element
(B) Pixel or Pel
(C) All of the mentioned
(D) None of these

Correct option is C

27. The digitization process i.e. the digital image has M rows and N columns, requires decisions about values for M, N, and for the number, L, of gray levels allowed for each pixel. The value M and N have to be:
(A) M and N have to be positive integer
(B) M and N have to be negative integer
(C) M have to be negative and N have to be positive integer
(D) M have to be positive and N have to be negative integer

Correct option is A

28. A continuous image is digitised at _______ points.
(A) random
(B) vertex
(C) contour
(D) sampling

Correct option is D

29. The transition between continuous values of the image function and its digital equivalent is called _____________
(A) Sampling
(B) None of the Mentioned
(C) Rasterisation
(D) Quantisation

Correct option is D

30. Images quantised with insufficient brightness levels will lead to the occurrence of ____________
(A) Pixillation
(B) Blurring
(C) False Contours
(D) None of the Mentioned

Correct option is C

 

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