05th
May
Digital Image Processing MCQ

Digital Image Processing MCQ

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  • 05th May, 2021
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Digital Image Processing MCQ Quiz

Following are mostly asked Digital image processing MCQ test that are designed for professionals like you to crack you interviews. You can take this Digital image processing online test before appearing to you real interview. This Digital image processing quiz there are around 30+ multiple choice questions on Digital image processing with four options.

1) A continuous image is digitised at _______ points

  • A. random
  • B. sampling
  • C. contour
  • D. vertex

2) The transition between continuous values of the image function and its digital equivalent is called.....

  • A. Sampling
  • B. Rasterisation
  • C. Quantisation
  • D. none

3) Images quantised with insufficient brightness levels will lead to the occurrence of:

  • A. False Contours
  • B. Pixillation
  • C. Blurring
  • D. None of the above

4) The smallest discernible change in intensity level is called :

  • A. Saturation
  • B. Contrast
  • C. Intensity Resolution
  • D. Contour

5) What is the tool used in tasks such as zooming, shrinking, rotating, etc.?

  • A. Filters
  • B. Interpolation
  • C. Sampling
  • D. None of the above

6) The type of Interpolation where for each new location the intensity of the immediate pixel is assigned is:

  • A. nearest neighbour interpolation
  • B. cubic interpolation
  • C. bicubic interpolation
  • D. bilinear interpolation

7) Dynamic range of imaging system is a ratio where the upper limit is determined by:

  • A. Noise
  • B. Brightness
  • C. Saturation
  • D. Contrast

8) Quantitatively, spatial resolution cannot be represented in which of the following ways:

  • A. dots
  • B. line pairs
  • C. pixels
  • D. none

9) What is the third step in digital image processing?

  • A. Image Restrotion
  • B. Image Enhancement
  • C. Colour Image Processing
  • D. Segmentation

10) ........is the total amount of energy that flows from light source:

  • A. Darkness
  • B. Brightness
  • C. Radiance
  • D. Luminance

11) Lossy compression is useful in:

  • A. Medical imaging
  • B. Television broad casting
  • C. Military imaging
  • D. Space imaging

12) Decision tree and support vector machine is an example of:

  • A. structural matching
  • B. statistical classification
  • C. template matching
  • D. neural network

13) Bandwidth compression means:

  • A. Digital compression
  • B. Analog compression
  • C. Relative compression
  • D. None

14) Which of the following file formats is an example of lossy compression only?

  • A. PNG
  • B. TIFF
  • C. JPEG
  • D. GIF

15) The area in which the receptors are absent is called:

  • A. blind spot
  • B. rods
  • C. fovea
  • D. hot spot

16) The procedure of obtaining images of blood vessels is called:

  • A. cryptography
  • B. geography
  • C. biography
  • D. angiography

17) How is sampling accomplished when a sensing array is used for image acquisition?

  • A. The number of sensors in the strip establishes the sampling limitations in one image direction and Mechanical motion in the other direction
  • B. The number of mechanical increments at which we activate the sensor to collect data
  • C. The number of sensors in the sensing array defines the limits of sampling in both directions
  • D. None

18) For a continuous image f(x, y), Quantization is defined as:

  • A. Digitizing the amplitude values
  • B. Digitizing the coordinate values
  • C. Both A & B
  • D. None of these

19) Digital functions' derivatives are defined as:

  • A. multiplication
  • B. division
  • C. differences
  • D. addition

20) For line detection we use mask that is:

  • A. laplacian
  • B. butterworth
  • C. ideal
  • D. Gaussian

21) If the inner region of the object is textured then approach we use is:

  • A. recognition
  • B. discontinuity
  • C. extraction
  • D. similarity

22) Using rough rule of thumb, and assuming powers of 2 for convenience, what image size are about the smallest images that can be expected to be reasonably free of objectionable sampling checkerboards and false contouring?

  • A. 256*256pixels and 64 gray levels
  • B. 64*64pixels and 16 gray levels
  • C. 32*32pixels and 32 gray levels
  • D. 512*512pixels and 16 gray levels

23) What does a shift up and right in the curves of isopreference curve simply means? Verify in terms of N (number of pixels) and k (L=2k, L is the gray level) values.

  • A. Larger values for N and k, implies better picture quality
  • B. Smaller values for N and k, implies a better picture quality
  • C. Smaller values for N and k, implies low picture quality
  • D. Larger values for N and k, implies low picture quality

24) How does the curves behave to the detail in the image in isopreference curve?

  • A. Curves tend to become less vertical as the detail in the image increases
  • B. Curves tend to become less vertical as the detail in the image decreases
  • C. Curves tend to become more vertical as the detail in the image decreases
  • D. Curves tend to become more vertical as the detail in the image increases

25) For an image with a large amount of detail, if the value of N (number of pixels) is fixed then what is the gray level dependency in the perceived quality of this type of image?

  • A. Nearly independent of the number of gray levels used
  • B. Highly dependent of the number of gray levels used
  • C. Totally independent of the number of gray levels used
  • D. None

26) What is a band-limited function?

  • A. A function of limited duration whose highest frequency is infinite
  • B. A function of limited duration whose highest frequency is finite
  • C. Both A & B
  • D. none

27) Orthonormal filter is developed around filter called:

  • A. Digital segment filtering
  • B. prototype
  • C. up sampling
  • D. filtering

28) The base of image pyramid contains:

  • A. intensity
  • B. low resolution
  • C. high resolution
  • D. blurred portion

29) Subband of input image, showing dH(m,n) is called:

  • A. horizontal detail
  • B. diagonal detail
  • C. approximation
  • D. vertical detail

30) Intensity levels in 8bit image are:

  • A. 256
  • B. 512
  • C. 255
  • D. 128

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