MCQs on Digital Image Processing
Solve Digital Image Processing Multiple-Choice Questions to prepare better for GATE. Learn more about Digital Image Processing and Digital Image Processing MCQs by checking notes, mock tests, and previous years’ question papers. Gauge the pattern of MCQs on Digital Image Processing by solving the ones that we have compiled below for your practice:
Digital Image Processing Multiple-Choice Questions
1. The first step in Image Processing is:
a. Segmentation
b. Image acquisition
c. Image enhancement
d. Image restoration
Answer: (b) Image acquisition
2. The shortest discernible change in the level of intensity is known as:
a. Contrast
b. Saturation
c. Contour
d. Intensity Resolution
Answer: (d) Intensity Resolution
3. A gradient image’s smallest possible value is:
a. 0
b. e
c. -e
d. 1
Answer: (a) 0
4. Which of the following, in general, assures no ringing in an output?
a. Ideal Low Pass Filter
b. Butterworth Low Pass Filter
c. Gaussian Low Pass Filter
d. All of the above
Answer: (c) Gaussian Low Pass Filter
5. If R happens to be a subset of pixels, and if R is a connected set, we will call R to be a _________ of the image.
a. Adjacent
b. Closed
c. Region
d. Disjoint
Answer: (c) Region
6. What equation do we use for the calculation of the B value according to the HSI components?
a. B=S(1-I)
b. B=I(1-S)
c. B=I(1+S)
d. B=S(1+I)
Answer: (b) B=I(1-S)
7. The total pixels in any given region defines the:
a. Brightness
b. Intensity
c. Perimeter
d. Area
Answer: (d) Area
8. In the case of nearest neighbour Interpolation, we have an undesirable feature. It is:
a. Checkerboard effect
b. Ridging effect
c. False contouring effect
d. Aliasing effect
Answer: (a) Checkerboard effect
9. What would be the standard deviation value for a given constant area?
a. 1
b. -1
c. 0
d. None of the above
Answer: (c) 0
10. Two random variables can be uncorrelated when their covariance is:
a. 0
b. 1
c. -1
d. None of the above
Answer: (a) 0
11. Which of these operations is done, in the spatial domain, on the pixels when we want to sharpen the image?
a. Median
b. Differentiation
c. Average
d. Integration
Answer: (b) Differentiation
12. An alternate approach used in place of the median filtering is:
a. Sharpening
b. Laplacian filter
c. Gaussian filter
d. Using a mask
Answer: (d) Using a mask
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