The transfer function of High frequency emphasis is given as: Hhfe(u, v) = a + b Hhp(u, v), for Hhp(u, v) being the highpass filtered version of image,a 0 and b>a. What happens when b increases past 1?

tThe low frequency are emphasized

tThe high frequency are emphasized

tThe low frequency are emphasized

The transfer function of High frequency emphasis is given as: Hhfe(u, v) = a + b Hhp(u, v), for Hhp(u, v) being the highpass filtered version of image,a 0 and b>a. for certain values of a and b it reduces to High-boost filtering. Which of the following is the required value?

ta = (A-1) and b = 0,A is some constant

ta = 0 and b = (A-1),A is some constant

ta = (A-1) and b =1,A is some constant

Which of the following a transfer function of High frequency emphasis {Hhfe(u, v)} for Hhp(u, v) being the highpass filtered version of image?

tHhfe(u, v) = 1 b Hhp(u, v), a 0 and b>a

tHhfe(u, v) = a + b Hhp(u, v), a 0 and b>a

To accentuate the contribution to enhancement made by high-frequency components, which of the following method(s) should be more appropriate to apply?

tMultiply the highpass filter by a constant

tAdd an offset to the highpass filter to prevent eliminating zero frequency term by filter

tAll of the mentioned combined and applied

If unsharp masking can be implemented directly in frequency domain by using a composite filter: Hhp(u, v) = 1 Hlp(u, v), where Hlp(u, v) the transfer function of a lowpass filter. Then, the composite filter for High-boost filtering is __________

tHhb(u, v) = (A-1) Hhp(u, v), A is a constant

tHhb(u, v) = (A-1) + Hhp(u, v), A is a constant

High boost filtered image is expressed as: fhb = A f(x, y) flp(x, y), where f(x, y) the input image, A is a constant and flp(x, y) is the lowpass filtered version of f(x, y). Which of the following fact(s) validates if A increases past 1?

tThe contribution of the image itself becomes more dominant

tThe contribution of the highpass filtered version of image becomes less dominant

High boost filtered image is expressed as: fhb = A f(x, y) flp(x, y), where f(x, y) the input image, A is a constant and flp(x, y) is the lowpass filtered version of f(x, y). Which of the following fact validates if A=1?

tHigh-boost filtering reduces to regular Lowpass filtering

tHigh-boost filtering reduces to regular Highpass filtering

tHigh-boost filtering reduces to regular Lowpass filtering

13 + Mcqs in Unsharp Masking, High-boost filtering and Emphasis Filtering in Digital Image Processing Page 1 McqOptions

1.	Validate the statement Because of High frequency emphasis the gray-level tonality due to low frequency components is not lost .
A.	tTrue
B.	tFalse
Answer» B. tFalse

Discussion

2.	The transfer function of High frequency emphasis is given as: H_hfe(u, v) = a + b H_hp(u, v), for H_hp(u, v) being the highpass filtered version of image,a 0 and b>a. When b increases past 1 the filtering process is specifically termed as__________
A.	tUnsharp masking
B.	tHigh-boost filtering
C.	tEmphasized filtering
D.	tNone of the mentioned
Answer» D. tNone of the mentioned

Discussion

3.	The transfer function of High frequency emphasis is given as: H_hfe(u, v) = a + b H_hp(u, v), for H_hp(u, v) being the highpass filtered version of image,a 0 and b>a. What happens when b increases past 1?
A.	tThe high frequency are emphasized
B.	tThe low frequency are emphasized
C.	tAll frequency are emphasized
D.	tNone of the mentioned
Answer» B. tThe low frequency are emphasized

Discussion

4.	The transfer function of High frequency emphasis is given as: H_hfe(u, v) = a + b H_hp(u, v), for H_hp(u, v) being the highpass filtered version of image,a 0 and b>a. for certain values of a and b it reduces to High-boost filtering. Which of the following is the required value?
A.	ta = (A-1) and b = 0,A is some constant
B.	ta = 0 and b = (A-1),A is some constant
C.	ta = 1 and b = 1
D.	ta = (A-1) and b =1,A is some constant
Answer» E.

Discussion

5.	Which of the following a transfer function of High frequency emphasis {H_hfe(u, v)} for H_hp(u, v) being the highpass filtered version of image?
A.	tH<sub>hfe</sub>(u, v) = 1 H<sub>hp</sub>(u, v)
B.	tH<sub>hfe</sub>(u, v) = a H<sub>hp</sub>(u, v), a 0
C.	tH<sub>hfe</sub>(u, v) = 1 b H<sub>hp</sub>(u, v), a 0 and b>a
D.	tH<sub>hfe</sub>(u, v) = a + b H<sub>hp</sub>(u, v), a 0 and b>a
Answer» E.

Discussion

6.	A process that accentuate the contribution to enhancement made by high-frequency components, by multiplying the highpass filter by a constant and adding an offset to the highpass filter to prevent eliminating zero frequency term by filter is known as _______
A.	tUnsharp masking
B.	tHigh-boost filtering
C.	tHigh frequency emphasis
D.	tNone of the mentioned
Answer» D. tNone of the mentioned

Discussion

7.	To accentuate the contribution to enhancement made by high-frequency components, which of the following method(s) should be more appropriate to apply?
A.	tMultiply the highpass filter by a constant
B.	tAdd an offset to the highpass filter to prevent eliminating zero frequency term by filter
C.	tAll of the mentioned combined and applied
D.	tNone of the mentioned
Answer» D. tNone of the mentioned

Discussion

8.	If unsharp masking can be implemented directly in frequency domain by using a composite filter: H_hp(u, v) = 1 H_lp(u, v), where H_lp(u, v) the transfer function of a lowpass filter. Then, the composite filter for High-boost filtering is __________
A.	tH<sub>hb</sub>(u, v) = 1 H<sub>hp</sub>(u, v)
B.	tH<sub>hb</sub>(u, v) = 1 + H<sub>hp</sub>(u, v)
C.	tH<sub>hb</sub>(u, v) = (A-1) H<sub>hp</sub>(u, v), A is a constant
D.	tH<sub>hb</sub>(u, v) = (A-1) + H<sub>hp</sub>(u, v), A is a constant
Answer» E.

Discussion

9.	Unsharp masking can be implemented directly in frequency domain by using a filter: H_hp(u, v) = 1 H_lp(u, v), where H_lp(u, v) the transfer function of a lowpass filter. What kind of filter is H_hp(u, v)?
A.	tComposite filter
B.	tM-derived filter
C.	tConstant k filter
D.	tNone of the mentioned
Answer» B. tM-derived filter

Discussion

10.	If, F_hp(u, v)=F(u, v) F_lp(u, v) and F_lp(u, v) = H_lp(u, v)F(u, v), where F(u, v) is the image in frequency domain with F_hp(u, v) its highpass filtered version, F_lp(u, v) its lowpass filtered component and H_lp(u, v) the transfer function of a lowpass filter. Then, unsharp masking can be implemented directly in frequency domain by using a filter. Which of the following is the required filter?
A.	tH<sub>hp</sub>(u, v) = H<sub>lp</sub>(u, v)
B.	tH<sub>hp</sub>(u, v) = 1 + H<sub>lp</sub>(u, v)
C.	tH<sub>hp</sub>(u, v) = H<sub>lp</sub>(u, v)
D.	tH<sub>hp</sub>(u, v) = 1 H<sub>lp</sub>(u, v)
Answer» E.

Discussion

11.	High boost filtered image is expressed as: f_hb = A f(x, y) f_lp(x, y), where f(x, y) the input image, A is a constant and f_lp(x, y) is the lowpass filtered version of f(x, y). Which of the following fact(s) validates if A increases past 1?
A.	tThe contribution of the image itself becomes more dominant
B.	tThe contribution of the highpass filtered version of image becomes less dominant
C.	tAll of the mentioned
D.	tNone of the mentioned
Answer» D. tNone of the mentioned

Discussion

12.	High boost filtered image is expressed as: f_hb = A f(x, y) f_lp(x, y), where f(x, y) the input image, A is a constant and f_lp(x, y) is the lowpass filtered version of f(x, y). Which of the following fact validates if A=1?
A.	tHigh-boost filtering reduces to regular Highpass filtering
B.	tHigh-boost filtering reduces to regular Lowpass filtering
C.	tAll of the mentioned
D.	tNone of the mentioned
Answer» B. tHigh-boost filtering reduces to regular Lowpass filtering

Discussion

13.	In frequency domain terminology, which of the following is defined as obtaining a highpass filtered image by subtracting from the given image a lowpass filtered version of itself ?
A.	tEmphasis filtering
B.	tUnsharp masking
C.	tButterworth filtering
D.	tNone of the mentioned
Answer» C. tButterworth filtering

Discussion

Explore topic-wise MCQs in Digital Image Processing.

Validate the statement Because of High frequency emphasis the gray-level tonality due to low frequency components is not lost .

The transfer function of High frequency emphasis is given as: Hhfe(u, v) = a + b Hhp(u, v), for Hhp(u, v) being the highpass filtered version of image,a 0 and b>a. When b increases past 1 the filtering process is specifically termed as__________

The transfer function of High frequency emphasis is given as: Hhfe(u, v) = a + b Hhp(u, v), for Hhp(u, v) being the highpass filtered version of image,a 0 and b>a. What happens when b increases past 1?

The transfer function of High frequency emphasis is given as: Hhfe(u, v) = a + b Hhp(u, v), for Hhp(u, v) being the highpass filtered version of image,a 0 and b>a. for certain values of a and b it reduces to High-boost filtering. Which of the following is the required value?

Which of the following a transfer function of High frequency emphasis {Hhfe(u, v)} for Hhp(u, v) being the highpass filtered version of image?

A process that accentuate the contribution to enhancement made by high-frequency components, by multiplying the highpass filter by a constant and adding an offset to the highpass filter to prevent eliminating zero frequency term by filter is known as _______

To accentuate the contribution to enhancement made by high-frequency components, which of the following method(s) should be more appropriate to apply?

If unsharp masking can be implemented directly in frequency domain by using a composite filter: Hhp(u, v) = 1 Hlp(u, v), where Hlp(u, v) the transfer function of a lowpass filter. Then, the composite filter for High-boost filtering is __________

Unsharp masking can be implemented directly in frequency domain by using a filter: Hhp(u, v) = 1 Hlp(u, v), where Hlp(u, v) the transfer function of a lowpass filter. What kind of filter is Hhp(u, v)?

High boost filtered image is expressed as: fhb = A f(x, y) flp(x, y), where f(x, y) the input image, A is a constant and flp(x, y) is the lowpass filtered version of f(x, y). Which of the following fact(s) validates if A increases past 1?

High boost filtered image is expressed as: fhb = A f(x, y) flp(x, y), where f(x, y) the input image, A is a constant and flp(x, y) is the lowpass filtered version of f(x, y). Which of the following fact validates if A=1?

In frequency domain terminology, which of the following is defined as obtaining a highpass filtered image by subtracting from the given image a lowpass filtered version of itself ?

The transfer function of High frequency emphasis is given as: H_hfe(u, v) = a + b H_hp(u, v), for H_hp(u, v) being the highpass filtered version of image,a 0 and b>a. When b increases past 1 the filtering process is specifically termed as__________

The transfer function of High frequency emphasis is given as: H_hfe(u, v) = a + b H_hp(u, v), for H_hp(u, v) being the highpass filtered version of image,a 0 and b>a. What happens when b increases past 1?

The transfer function of High frequency emphasis is given as: H_hfe(u, v) = a + b H_hp(u, v), for H_hp(u, v) being the highpass filtered version of image,a 0 and b>a. for certain values of a and b it reduces to High-boost filtering. Which of the following is the required value?

Which of the following a transfer function of High frequency emphasis {H_hfe(u, v)} for H_hp(u, v) being the highpass filtered version of image?

If unsharp masking can be implemented directly in frequency domain by using a composite filter: H_hp(u, v) = 1 H_lp(u, v), where H_lp(u, v) the transfer function of a lowpass filter. Then, the composite filter for High-boost filtering is __________

Unsharp masking can be implemented directly in frequency domain by using a filter: H_hp(u, v) = 1 H_lp(u, v), where H_lp(u, v) the transfer function of a lowpass filter. What kind of filter is H_hp(u, v)?

High boost filtered image is expressed as: f_hb = A f(x, y) f_lp(x, y), where f(x, y) the input image, A is a constant and f_lp(x, y) is the lowpass filtered version of f(x, y). Which of the following fact(s) validates if A increases past 1?

High boost filtered image is expressed as: f_hb = A f(x, y) f_lp(x, y), where f(x, y) the input image, A is a constant and f_lp(x, y) is the lowpass filtered version of f(x, y). Which of the following fact validates if A=1?