1. Smoothing filter is used for which of the following work(s)?
A. Blurring
B. Noise reduction
C. All of the mentioned
D. None of the mentioned
2. The response of the smoothing linear spatial filter is/are __________
A. Sum of image pixels in the neighborhood filter mask
B. Difference of image in the neighborhood filter mask
C. Product of a pixel in the neighborhood filter mask
D. Average of pixels in the neighborhood of filter mask
4. What is/is the resultant image of a smoothing filter?
A. Image with high sharp transitions in gray levels
B. Image with reduced sharp transitions in gray levels
C. All of the mentioned
D. None of the mentioned
5. At which of the following scenarios averaging filters is/are used?
A. In the reduction of irrelevant details in an image
B. For smoothing of false contours
C. For noise reductions
D. All of the mentioned
6. A spatial averaging filter having all the coefficients equal is termed _________
A. A box filter
B. A weighted average filter
C. A standard average filter
D. A median filter
7. What does using a mask have a central coefficient maximum and then the coefficients reducing as a function of increasing distance from origin result?
A. It results in increasing blurring in the smoothing process
B. It results to reduce blurring in the smoothing process
C. Nothing with blurring occurs as mask coefficient relation does not affect the smoothing process
D. None of the mentioned
8. What is the relation between the blurring effect and with change in filter size?
A. Blurring increases with the decrease of the size of filter size
B. Blurring decrease with a decrease in the size filter size
C. Blurring decrease with the increase of the size filter size
D. Blurring increases with an increase in the size of filter size
9. Which of the following filter(s) has the response in which the central pixel value is replaced by a value defined by ranking the pixel in the image encompassed by the filter?
A. Order-Statistic filters
B. Non-linear spatial filters
C. Median filter
D. All of the mentioned
10. Is it true or false that “the original pixel value is included while computing the median using gray levels in the neighborhood of the original pixel in median filter case”?
A. True
B. False