Digital Image Processing MCQ with answers

In this Quiz, we will be discussing some of the most commonly asked digital image processing MCQs. These questions will help you understand the concepts behind the various algorithms and how they work. The answers to these questions can be found by clicking on the Show Answer tab.

Digital Image Processing MCQ multiple choice questions with answers for IT Students of Academic and Competitive exam preparation.

Digital Image Processing

Brief About Digital Image Processing

Digital image processing deals with the manipulation of digital images. This can include tasks like enhancement, restoration, noise reduction, and color correction. There are a variety of software applications available that can be used for these tasks, but often the best results can be obtained using specialized hardware.

Digital image processing refers to the various methods used to manipulate digital images. These methods can be used for a variety of purposes, such as correcting errors, enhancing pictures, and creating new images. Digital image processing is a relatively new field, but it is growing rapidly thanks to the increasing use of digital cameras and photo editing software.

Top 44 Digital Image processing MCQ with Answer

1. ___ is the term most widely used to denote the elements of a digital image.
[expand title="Show Answer"]Ans. Pixel[/expand]

2. The principal energy source for images in use today is ___.
[expand title="Show Answer"]Ans. electromagnetic energy spectrum[/expand]

3. ___ is an area that also deals with improving the appearance of an image.
[expand title="Show Answer"]Ans. Image restoration[/expand]

4. Knowledge about a problem domain is coded into an image processing system in the form of a ___.
[expand title="Show Answer"]Ans. knowledge database[/expand]

5. The dominant application of imaging in the microwave band is ___.
[expand title="Show Answer"]Ans. radar[/expand]

6. Three membranes enclose the eye: the ___, ___, and ___.
[expand title="Show Answer"]Ans. Cornea, choroid; and retina[/expand]

7. The distance between the center of the lens and the retina is called ___.
[expand title="Show Answer"]Ans. focal length[/expand]

8. Phenomenon, in which the eye fills in non-existing information or wrongly perceives geometrical properties of objects is called ___.
[expand title="Show Answer"]Ans. optical illusion[/expand]

9. Light that is void of color is called ___ light.
[expand title="Show Answer"]Ans. achromatic or monochromatic[/expand]

10. To create a digital image, we need to convert continuous sensed data into ___ form.
[expand title="Show Answer"]Ans. digital[/expand]

11. Amplitude Scaling is a method for ___.
[expand title="Show Answer"]Ans. Contrast Manipulation[/expand]

12. An example of a linear noise cleaning technique is ___.
[expand title="Show Answer"]Ans. Homomorphic Filtering or Convolution method[/expand]

13. In the case of linear edge crispening, masks that are used possess a property that the sum of their elements is ___.
[expand title="Show Answer"]Ans. unity[/expand]

14. ___ produces a color image from a monochrome image.
[expand title="Show Answer"]Ans. Pseudocolour[/expand]

15. There are two basic approaches to the modeling of image degradation effects: ___ and ___.
[expand title="Show Answer"]Ans. a priori modelling, a posteriori modelling[/expand]

16. The result of sampling and quantization is a matrix of ___ numbers.
[expand title="Show Answer"]Ans. Real[/expand]

17. The 4-neighbours of p and Diagonal neighbors of p are called ___.
[expand title="Show Answer"]Ans. 8-neighbours[/expand]

18. ___ are used to calculate the spatial distance between pixel locations.
[expand title="Show Answer"]Ans. Distance measures[/expand]

19. The Euclidean distance between p and q is defined as ___.
[expand title="Show Answer"]Ans. De(p,q) = [(x-s)2 + (y-t)2]1/2[/expand]

20. ___–– may be caused by electronic imaging sensors or film granularity.
[expand title="Show Answer"]Ans. Noise disturbances[/expand]

21. The noise covariance function of an observed image can be estimated by measuring the ___ over a region of relatively constant background luminance.
[expand title="Show Answer"]Ans. image covariance[/expand]

22. The impulse response of the restoration filter is chosen to minimize the ___.
[expand title="Show Answer"]Ans. mean-square restoration error[/expand]

23. In the literature, the standard deviation image feature is sometimes called the ___.
[expand title="Show Answer"]Ans. image dispersion[/expand]

24. ___ are inherently dependent on the size of the observation neighborhood.
[expand title="Show Answer"]Ans. Texture measures[/expand]

25. ___ textures consist of arrangements of symbols, such as line segments, dots, and stars placed against a neutral background.
[expand title="Show Answer"]Ans. Artificial[/expand]

26. The luminance of a region of pixels and greyscale textural regions are examples for ___.
[expand title="Show Answer"]Ans. Natural features[/expand]

27. Image amplitude histograms and spatial frequency spectra are examples of ___.
[expand title="Show Answer"]Ans. artificial features[/expand]

28. ___ subdivides an image into its constituent regions or objects.
[expand title="Show Answer"]Ans. Segmentation[/expand]

20. Image segmentation algorithms generally are based on one of two basic properties of intensity values: ___ and ___.
[expand title="Show Answer"]Ans. discontinuity, similarity[/expand]

30. ___, ___ and___ are the three basic types of discontinuities.
[expand title="Show Answer"]Ans. point, lines, and edges[/expand]

31. ___ are designed with suitable coefficients and are applied at each point in an image.
[expand title="Show Answer"]Ans. Mask[/expand]

32. The smoothing effect is an attractive feature of the ___ operators.
[expand title="Show Answer"]Ans. Sobel[/expand]

33. In ___ neighboring pixels of similar amplitude are grouped together to form a segmented region.
[expand title="Show Answer"]Ans. Region growing[/expand]

34. A ___ is a set of connected pixels that lie on the boundary between two regions.
[expand title="Show Answer"]Ans. Edge[/expand]

35. ___ Derivatives of a digital image are based on various approximations of the 2-D gradient.
[expand title="Show Answer"]Ans. First-order[/expand]

36. ___ Edge linking process takes an unordered set of edge pixels produced by an edge detector as an input to form an ordered list of edges.
[expand title="Show Answer"]Ans. Edge linking[/expand]

37. The ___ can be treated as the class boundary.
[expand title="Show Answer"]Ans. Threshold[/expand]

38. The ___, also called the distance map, is a useful distance measuring tool.
[expand title="Show Answer"]Ans. distance transform[/expand]

39. The spatial orientation of an object with respect to a horizontal reference axis is the basis of a set of orientation descriptors developed at the ___.
[expand title="Show Answer"]Ans. Stanford Research Institute[/expand]

40. In a ___ algorithm for thinning and skeletonizing, pixels are examined for deletion (erasure) in a fixed sequence over several iterations of an algorithm.
[expand title="Show Answer"]Ans. sequential[/expand]

41. ___ signals are those whose properties do not change much.
[expand title="Show Answer"]Ans. Stationary signals[/expand]

42. A transform similar in properties to the Fourier transform, but with piece-wise constant bases is the ___.
[expand title="Show Answer"]Ans. Walsh transform[/expand]

43. One way to localize the high frequencies while preserving the linearity of the operator is to use a ___.
[expand title="Show Answer"]Ans. Windowed Fourier transform (WFT)[/expand]

44. A multi-dimensional wavelet transform is frequently referred to in the literature as a ___.
[expand title="Show Answer"]Ans. Wavelet decomposition[/expand]

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