Q. Which of the following is/are used as basic function in nonlinear filter for noise reduction?

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Q. In neighborhood operation for spatial filtering if a square mask of size n*n is used it is restricted that the center of mask must be at a distance ≥ (n – 1)/2 pixels from border of image, what happens to the resultant image?

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Q. Which of the following method is/are used for padding the image?

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Q. In neighborhood operation for spatial filtering using square mask of n*n, which of the following approach is/are used to obtain a perfectly filtered result irrespective of the size?

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Q. Which of the following fact(s) is/are true for the relationship between low frequency component of Fourier transform and the rate of change of gray levels?

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Q. Which of the following fact(s) is/are true for the relationship between high frequency component of Fourier transform and the rate of change of gray levels?

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Q. What is the name of the filter that multiplies two functions F(u, v) and H(u, v), where F has complex components too since is Fourier transformed function of f(x, y), in an order that each component of H multiplies both real and complex part of corresponding component in F?

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Q. To set the average value of an image zero, which of the following term would be set 0 in the frequency domain and the inverse transformation is done, where F(u, v) is Fourier transformed function of f(x, y)?

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Q. What is the name of the filter that is used to turn the average value of a processed image zero?

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Q. Which of the following filter(s) attenuates high frequency while passing low frequencies of an image?

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Q. Which of the following filter(s) attenuates low frequency while passing high frequencies of an image?

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Q. Which of the following filter have a less sharp detail than the original image because of attenuation of high frequencies?

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Q. The feature(s) of a highpass filtered image is/are ___________

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Q. A spatial domain filter of the corresponding filter in frequency domain can be obtained by applying which of the following operation(s) on filter in frequency domain?

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Q. A frequency domain filter of the corresponding filter in spatial domain can be obtained by applying which of the following operation(s) on filter in spatial domain?

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Q. Which of the following filtering is done in frequency domain in correspondence to lowpass filtering in spatial domain?

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Q. Using the feature of reciprocal relationship of filter in spatial domain and corresponding filter in frequency domain, which of the following fact is true?

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Q. Smoothing in frequency domain is achieved by attenuating which of the following component in the transform of a given image?

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Q. Which of the following is/are considered as type(s) of lowpass filters?

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Q. Which of the following lowpass filters is/are covers the range of very sharp filter function?

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