Which of the following statement(s) is true for the given fact that “Applying Highpass filters has an effect on the background of the output image”?

The average background intensity changes to a value average of black and white

The average background intensity increases to near white

The average background intensity reduces to near black

The average background intensity changes to a value average of black and white

What is the relation of the frequencies to a circle of radius D0, where D0 is the cutoff distance measured from origin of frequency rectangle, for an Ideal Highpass filter?

IHPF sets all frequencies inside circle to zero

IHPF allows all frequencies, without attenuating, outside the circle

What_is_the_relation_of_the_frequencies_to_a_circle_of_radius_D0,_where_D0_is_the_cutoff_distance_measured_from_origin_of_frequency_rectangle,_for_an_Ideal_Highpass_filter?$

IHPF sets all frequencies inside circle to zero

IHPF allows all frequencies, without attenuating, outside the circle

Which of the following statement(s) is true for the given fact that ‚Äö√Ñ√∂‚àö√ë‚àö‚à´Applying Highpass filters has an effect on the background of the output image‚Äö√Ñ√∂‚àö√ë‚àöœÄ?$

The average background intensity changes to a value average of black and white

The average background intensity increases to near white

The average background intensity reduces to near black

The average background intensity changes to a value average of black and white

The Image sharpening in frequency domain can be achieved by which of the following method(s)?

Attenuating the high frequency components

Attenuating the low-frequency components

A type of Image is called as VHRR image. What is the definition of VHRR image?

Very High Range Radiometer Image

Very High Range Resolution image

Very High Resolution Range image

Very High Resolution Radiometer image

Very High Range Radiometer Image

The edges and other abrupt changes in gray-level of an image are associated with_________

Edges with high frequency and other abrupt changes in gray-level with low frequency components

Edges with low frequency and other abrupt changes in gray-level with high frequency components

The lowpass filtering process can be applied in which of the following area(s)?

The field of machine perception, with application of character recognition

In field of printing and publishing industry

In field of processing satellite and aerial images

18 + Mcqs in Gaussain Lowpass Frequency Domain Filters Sharpening in Digital Image Processing Page 1 McqOptions

1.	Which of the following statement(s) is true for the given fact that “Applying Highpass filters has an effect on the background of the output image”?
A.	The average background intensity increases to near white
B.	The average background intensity reduces to near black
C.	The average background intensity changes to a value average of black and white
D.	All of the mentioned
Answer» C. The average background intensity changes to a value average of black and white

Discussion

2.	For a given image having smaller objects, which of the following filter(s), having D0 as the cutoff distance measured from origin of frequency rectangle, would you prefer for a comparably smoother result?
A.	IHLF with D0 15
B.	BHPF with D0 15 and order 2
C.	GHPF with D0 15 and order 2
D.	All of the mentioned
Answer» D. All of the mentioned

Discussion

3.	What is the relation of the frequencies to a circle of radius D0, where D0 is the cutoff distance measured from origin of frequency rectangle, for an Ideal Highpass filter?
A.	IHPF sets all frequencies inside circle to zero
B.	IHPF allows all frequencies, without attenuating, outside the circle
C.	All of the mentioned
D.	None of the mentioned
Answer» D. None of the mentioned

Discussion

4.	If D0 is the cutoff distance measured from origin of frequency rectangle and D(u, v) is the distance from point(u, v). Then what value does an Ideal Highpass filter will give if D(u, v) ≤ D0 andifD(u, v) >D0?
A.	0 and 1 respectively
B.	1 and 0 respectively
C.	1 in both case
D.	0 in both case
Answer» B. 1 and 0 respectively

Discussion

5.	State the statement as true or false. “The GLPF did produce as much smoothing as the BLPF of order 2 for the same value of cutoff frequency”.
A.	True
B.	False
Answer» C.

Discussion

6.	If the Gaussian filter is expressed as H(u, v) = e(-D2 (u,v)/2D 02),where D(u, v) is the distance from point(u, v), D0 is the distance defining cutoff frequency, then for what value of D(u, v) the filter is down to 0.607 of its maximum value?
A.	D(u, v) = D0
B.	D(u, v) = D02
C.	D(u, v) = D03
D.	D(u, v) = 0
Answer» B. D(u, v) = D02

Discussion

7.	IF_D₀_IS_THE_CUTOFF_DISTANCE_MEASURED_FROM_ORIGIN_OF_FREQUENCY_RECTANGLE_AND_D(U,_V)_IS_THE_DISTANCE_FROM_POINT(U,_V)._THEN_WHAT_VALUE_DOES_AN_IDEAL_HIGHPASS_FILTER_WILL_GIVE_IF_D(U,_V)_‚ÄÖ√Ñ√∂‚ÀÖ¬¢¬¨√Ü_D0_ANDIFD(U,_V)_>D0??$#
A.	0 and 1 respectively
B.	1 and 0 respectively
C.	1 in both case
D.	0 in both case
Answer» B. 1 and 0 respectively

Discussion

8.	What_is_the_relation_of_the_frequencies_to_a_circle_of_radius_D₀,_where_D₀_is_the_cutoff_distance_measured_from_origin_of_frequency_rectangle,_for_an_Ideal_Highpass_filter?$
A.	IHPF sets all frequencies inside circle to zero
B.	IHPF allows all frequencies, without attenuating, outside the circle
C.	All of the mentioned
D.	None of the mentioned
Answer» D. None of the mentioned

Discussion

9.	Which of the following statement(s) is true for the given fact that ‚Äö√Ñ√∂‚àö√ë‚àö‚à´Applying Highpass filters has an effect on the background of the output image‚Äö√Ñ√∂‚àö√ë‚àöœÄ?$
A.	The average background intensity increases to near white
B.	The average background intensity reduces to near black
C.	The average background intensity changes to a value average of black and white
D.	All of the mentioned
Answer» C. The average background intensity changes to a value average of black and white

Discussion

10.	For a given image having smaller objects, which of the following filter(s), having D₀ as the cutoff distance measured from origin of frequency rectangle, would you prefer for a comparably smoother result?
A.	IHLF with D<sub>0</sub> 15
B.	BHPF with D<sub>0</sub> 15 and order 2
C.	GHPF with D<sub>0</sub> 15 and order 2
D.	All of the mentioned
Answer» D. All of the mentioned

Discussion

11.	The function of filters in Image sharpening in frequency domain is to perform reverse operation of which of the following Lowpass filter?
A.	Gaussian Lowpass filter
B.	Butterworth Lowpass filter
C.	Ideal Lowpass filter
D.	None of the Mentioned
Answer» D. None of the Mentioned

Discussion

12.	The Image sharpening in frequency domain can be achieved by which of the following method(s)?
A.	Attenuating the high frequency components
B.	Attenuating the low-frequency components
C.	All of the mentioned
D.	None of the mentioned
Answer» C. All of the mentioned

Discussion

13.	A type of Image is called as VHRR image. What is the definition of VHRR image?
A.	Very High Range Resolution image
B.	Very High Resolution Range image
C.	Very High Resolution Radiometer image
D.	Very High Range Radiometer Image
Answer» D. Very High Range Radiometer Image

Discussion

14.	The edges and other abrupt changes in gray-level of an image are associated with_________
A.	High frequency components
B.	Low frequency components
C.	Edges with high frequency and other abrupt changes in gray-level with low frequency components
D.	Edges with low frequency and other abrupt changes in gray-level with high frequency components
Answer» B. Low frequency components

Discussion

15.	The lowpass filtering process can be applied in which of the following area(s)?
A.	The field of machine perception, with application of character recognition
B.	In field of printing and publishing industry
C.	In field of processing satellite and aerial images
D.	All of the mentioned
Answer» E.

Discussion

16.	In general, which of the following assures of no ringing in the output?
A.	Gaussian Lowpass Filter
B.	Ideal Lowpass Filter
C.	Butterworth Lowpass Filter
D.	All of the mentioned
Answer» B. Ideal Lowpass Filter

Discussion

17.	State the statement as true or false. ‚Äö√Ñ√∂‚àö√ë‚àö‚à´The GLPF did produce as much smoothing as the BLPF of order 2 for the same value of cutoff frequency‚Äö√Ñ√∂‚àö√ë‚àöœÄ.$
A.	True
B.	False
Answer» C.

Discussion

18.	If the Gaussian filter is expressed as H(u, v) = e^{(-D² (u,v)/2D ₀²)},where D(u, v) is the distance from point(u, v), D₀ is the distance defining cutoff frequency, then for what value of D(u, v) the filter is down to 0.607 of its maximum value?
A.	D(u, v) = D<sub>0</sub>
B.	D(u, v) = D<sub>0</sub><sup>2</sup>
C.	D(u, v) = D<sub>0</sub><sup>3</sup>
D.	D(u, v) = 0
Answer» B. D(u, v) = D<sub>0</sub><sup>2</sup>

Discussion

Explore topic-wise MCQs in Digital Image Processing.

Which of the following statement(s) is true for the given fact that “Applying Highpass filters has an effect on the background of the output image”?

For a given image having smaller objects, which of the following filter(s), having D0 as the cutoff distance measured from origin of frequency rectangle, would you prefer for a comparably smoother result?

What is the relation of the frequencies to a circle of radius D0, where D0 is the cutoff distance measured from origin of frequency rectangle, for an Ideal Highpass filter?

If D0 is the cutoff distance measured from origin of frequency rectangle and D(u, v) is the distance from point(u, v). Then what value does an Ideal Highpass filter will give if D(u, v) ≤ D0 andifD(u, v) >D0?

State the statement as true or false. “The GLPF did produce as much smoothing as the BLPF of order 2 for the same value of cutoff frequency”.

If the Gaussian filter is expressed as H(u, v) = e(-D2 (u,v)/2D 02),where D(u, v) is the distance from point(u, v), D0 is the distance defining cutoff frequency, then for what value of D(u, v) the filter is down to 0.607 of its maximum value?

IF_D0_IS_THE_CUTOFF_DISTANCE_MEASURED_FROM_ORIGIN_OF_FREQUENCY_RECTANGLE_AND_D(U,_V)_IS_THE_DISTANCE_FROM_POINT(U,_V)._THEN_WHAT_VALUE_DOES_AN_IDEAL_HIGHPASS_FILTER_WILL_GIVE_IF_D(U,_V)_‚ÄÖ√Ñ√∂‚ÀÖ¬¢¬¨√Ü_D0_ANDIFD(U,_V)_>D0??$#

What_is_the_relation_of_the_frequencies_to_a_circle_of_radius_D0,_where_D0_is_the_cutoff_distance_measured_from_origin_of_frequency_rectangle,_for_an_Ideal_Highpass_filter?$

Which of the following statement(s) is true for the given fact that ‚Äö√Ñ√∂‚àö√ë‚àö‚à´Applying Highpass filters has an effect on the background of the output image‚Äö√Ñ√∂‚àö√ë‚àöœÄ?$

For a given image having smaller objects, which of the following filter(s), having D0 as the cutoff distance measured from origin of frequency rectangle, would you prefer for a comparably smoother result?

The function of filters in Image sharpening in frequency domain is to perform reverse operation of which of the following Lowpass filter?

The Image sharpening in frequency domain can be achieved by which of the following method(s)?

A type of Image is called as VHRR image. What is the definition of VHRR image?

The edges and other abrupt changes in gray-level of an image are associated with_________

The lowpass filtering process can be applied in which of the following area(s)?

In general, which of the following assures of no ringing in the output?

State the statement as true or false. ‚Äö√Ñ√∂‚àö√ë‚àö‚à´The GLPF did produce as much smoothing as the BLPF of order 2 for the same value of cutoff frequency‚Äö√Ñ√∂‚àö√ë‚àöœÄ.$

If the Gaussian filter is expressed as H(u, v) = e(-D2 (u,v)/2D 02),where D(u, v) is the distance from point(u, v), D0 is the distance defining cutoff frequency, then for what value of D(u, v) the filter is down to 0.607 of its maximum value?

IF_D₀_IS_THE_CUTOFF_DISTANCE_MEASURED_FROM_ORIGIN_OF_FREQUENCY_RECTANGLE_AND_D(U,_V)_IS_THE_DISTANCE_FROM_POINT(U,_V)._THEN_WHAT_VALUE_DOES_AN_IDEAL_HIGHPASS_FILTER_WILL_GIVE_IF_D(U,_V)_‚ÄÖ√Ñ√∂‚ÀÖ¬¢¬¨√Ü_D0_ANDIFD(U,_V)_>D0??$#

What_is_the_relation_of_the_frequencies_to_a_circle_of_radius_D₀,_where_D₀_is_the_cutoff_distance_measured_from_origin_of_frequency_rectangle,_for_an_Ideal_Highpass_filter?$

For a given image having smaller objects, which of the following filter(s), having D₀ as the cutoff distance measured from origin of frequency rectangle, would you prefer for a comparably smoother result?

If the Gaussian filter is expressed as H(u, v) = e^{(-D² (u,v)/2D ₀²)},where D(u, v) is the distance from point(u, v), D₀ is the distance defining cutoff frequency, then for what value of D(u, v) the filter is down to 0.607 of its maximum value?