MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 7 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. |
If in an image there exist similar change in gray-level values in the image, which of the following shows a stronger response using second order derivative operator for sharpening? |
| A. | tA line |
| B. | tA step |
| C. | tA point |
| D. | tNone of the mentioned |
| Answer» D. tNone of the mentioned | |
| 2. |
What kind of relation can be obtained between the response of first order derivative and second order derivative of an image having a transition into gray-level step from zero? |
| A. | tFirst order derivative has a stronger response than a second order |
| B. | tSecond order derivative has a stronger response than a first order |
| C. | tBoth first and second order derivative has the same response |
| D. | tNone of the mentioned |
| Answer» D. tNone of the mentioned | |
| 3. |
What kind of relation can be obtained between first order derivative and second order derivative of an image on the response obtained by encountering an isolated noise point in the image? |
| A. | tFirst order derivative has a stronger response than a second order |
| B. | tSecond order derivative has a stronger response than a first order |
| C. | tBoth enhances the same and so the response is same for both first and second order derivative |
| D. | tNone of the mentioned |
| Answer» C. tBoth enhances the same and so the response is same for both first and second order derivative | |
| 4. |
The derivative of digital function is defined in terms of difference. Then, which of the following defines the second order derivative 2 f/ x2 = ___________ of a one-dimensional function f(x)? |
| A. | tf(x+1)-f(x) |
| B. | tf(x+1)+ f(x-1)-2f(x) |
| C. | tAll of the mentioned depending upon the time when partial derivative will be dealt along two spatial axes |
| D. | tNone of the mentioned |
| Answer» C. tAll of the mentioned depending upon the time when partial derivative will be dealt along two spatial axes | |
| 5. |
The derivative of digital function is defined in terms of difference. Then, which of the following defines the first order derivative f/ x= ___________ of a one-dimensional function f(x)? |
| A. | tf(x+1)-f(x) |
| B. | tf(x+1)+ f(x-1)-2f(x) |
| C. | tAll of the mentioned depending upon the time when partial derivative will be dealt along two spatial axes |
| D. | tNone of the mentioned |
| Answer» B. tf(x+1)+ f(x-1)-2f(x) | |
| 6. |
Which of the facts(s) is/are true for the second order derivative of a digital function? |
| A. | tMust be zero in the flat areas |
| B. | tMust be nonzero at the onset and end of a gray-level step or ramp discontinuities |
| C. | tMust be zero along the ramps of constant slope |
| D. | tAll of the mentioned |
| Answer» D. tAll of the mentioned | |
| 7. |
The objective of sharpening spatial filters is/are to ___________ |
| A. | tHighlight fine detail in an image |
| B. | tEnhance detail that has been blurred because of some error |
| C. | tEnhance detail that has been blurred because of some natural effect of some method of image acquisition |
| D. | tAll of the mentioned |
| Answer» E. | |