Explore topic-wise MCQs in Digital Image Processing.

This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Image Processing knowledge and support exam preparation. Choose a topic below to get started.

1.

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

A. Gaussian filtering
B. Unsharp mask filtering
C. High-boost filtering
D. None of the mentioned
Answer» B. Unsharp mask filtering
2.

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?

A. Fourier transform
B. Inverse Fourier transform
C. None of the mentioned
D. All of the mentioned
Answer» B. Inverse Fourier transform
3.

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?

A. Fourier transform
B. Inverse Fourier transform
C. None of the mentioned
D. All of the mentioned
Answer» C. None of the mentioned
4.

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

A. Have less gray-level variation in smooth areas
B. Emphasized transitional gray-level details
C. An overall sharper image
D. All of the mentioned
Answer» E.
5.

THE_FEATURE(S)_OF_A_HIGHPASS_FILTERED_IMAGE_IS/ARE____________?$

A. Have less gray-level variation in smooth areas
B. Emphasized transitional gray-level details
C. An overall sharper image
D. All of the mentioned
Answer» E.
6.

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?$

A. Fourier transform
B. Inverse Fourier transform
C. None of the mentioned
D. All of the mentioned
Answer» B. Inverse Fourier transform
7.

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?$

A. Fourier transform
B. Inverse Fourier transform
C. None of the mentioned
D. All of the mentioned
Answer» C. None of the mentioned
8.

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

A. The narrower the frequency domain filter results in increased blurring
B. The wider the frequency domain filter results in increased blurring
C. The narrower the frequency domain filter results in decreased blurring
D. None of the mentioned
Answer» B. The wider the frequency domain filter results in increased blurring
9.

Which_of_the_following_filtering_is_done_in_frequency_domain_in_correspondence_to_lowpass_filtering_in_spatial_domain?

A. Gaussian filtering
B. Unsharp mask filtering
C. High-boost filtering
D. None of the mentioned
Answer» B. Unsharp mask filtering
10.

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

A. Highpass filter
B. Lowpass filter
C. Zero-phase-shift filter
D. None of the mentioned
Answer» C. Zero-phase-shift filter
11.

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

A. Unsharp mask filter
B. Highpass filter
C. Zero-phase-shift filter
D. All of the mentioned
Answer» C. Zero-phase-shift filter
12.

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

A. Unsharp mask filter
B. Lowpass filter
C. Zero-phase-shift filter
D. All of the mentioned
Answer» C. Zero-phase-shift filter
13.

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

A. Unsharp mask filter
B. Notch filter
C. Zero-phase-shift-filter
D. None of the mentioned
Answer» C. Zero-phase-shift-filter
14.

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)?

A. F(0, 0)
B. F(0, 1)
C. F(1, 0)
D. None of the mentioned
Answer» B. F(0, 1)
15.

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?

A. Unsharp mask filter
B. High-boost filter
C. Zero-phase-shift-filter
D. None of the mentioned
Answer» D. None of the mentioned
16.

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?

A. Moving away from the origin of transform the high frequency corresponds to smooth gray level variation
B. Moving away from the origin of transform the higher frequencies corresponds to abrupt change in gray level
C. All of the mentioned
D. None of the mentioned
Answer» C. All of the mentioned
17.

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?

A. Moving away from the origin of transform the low frequency corresponds to smooth gray level variation
B. Moving away from the origin of transform the low frequencies corresponds to abrupt change in gray level
C. All of the mentioned
D. None of the mentioned
Answer» D. None of the mentioned