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

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Q. Butterworth lowpass filter has a parameter, filter order, determining its functionality as very sharp or very smooth filter function or an intermediate filter function. If the parameter value is very high, the filter approaches to which of the following filter(s)?

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Q. Butterworth lowpass filter has a parameter, filter order, determining its functionality as very sharp or very smooth filter function or an intermediate filter function. If the parameter value is of lower order, the filter approaches to which of the following filter(s)?

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Q. In a filter, all the frequencies inside a circle of radius D0 are not attenuated while all frequencies outside circle are completely attenuated. The D0 is the specified nonnegative distance from origin of the Fourier transform. Which of the following filter(s) characterizes the same?

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Q. In an ideal lowpass filter case, what is the relation between the filter radius and the blurring effect caused because of the filter?

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