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
2. Among the following image processing techniques which is fast, precise and flexible..
(A) Optical
(B) Digital
(C) Electronics
(D) Photography
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
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
5. The range of values spanned by the gray scale is called:
(A) Dynamic range
(B) Band range
(C) Peak range
(D) Resolution range
6. Which is a colour attribute that describes a pure colour?
(A) Saturation
(B) Hue
(C) Brightness
(D) Intensity
7. The smallest discernible change in intensity level is called ____________
(A) Intensity Resolution
(B) Contour
(C) Contrast
(D) Saturation
8. Which means the assigning meaning to a recognized object
(A) Interpretation
(B) Recognition
(C) Acquisition
(D) Segmentation
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
10. The number of grey values are integer powers of:
(A) 4
(B) 2
(C) 8
(D) 1
11. What is the first and foremost step in Image Processing?
(A) Image restoration
(B) Image enhancement
(C) Image acquisition
(D) Segmentation
12. In which step of processing, the images are subdivided successively into smaller regions?
(A) Image enhancement
(B) Image acquisition
(C) Segmentation
(D) Wavelets
13. What is the next step in image processing after compression?
(A) Wavelets
(B) Segmentation
(C) Representation and description
(D) Morphological processing
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
15. How many number of steps are involved in image processing?
(A) 10
(B) 9
(C) 11
(D) 12
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
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
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
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
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
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
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
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
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
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
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
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
28. A continuous image is digitised at _______ points.
(A) random
(B) vertex
(C) contour
(D) sampling
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
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