MCQOPTIONS
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MCQOPTIONS
This section includes 15 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 helps to obtain the number of bits to be used to quantize each pixel. |
| A. | Gray-level slicing |
| B. | Contrast stretching |
| C. | Contouring |
| D. | Bit-plane slicing |
| Answer» E. | |
| 2. |
In bit-plane slicing if an image is represented by 8 bits and is composed of eight 1-bit plane, with plane 0 showing least significant bit and plane 7 showing most significant bit. Then, which plane(s) contain the majority of visually significant data. |
| A. | Plane 4, 5, 6, 7 |
| B. | Plane 0, 1, 2, 3 |
| C. | Plane 0 |
| D. | Plane 2, 3, 4, 5 |
| Answer» B. Plane 0, 1, 2, 3 | |
| 3. |
Specific bit contribution in the image highlighting is the basic idea of __________ |
| A. | Contrast stretching |
| B. | Bit –plane slicing |
| C. | Thresholding |
| D. | Gray-level slicing |
| Answer» C. Thresholding | |
| 4. |
A contrast stretching result been obtained by setting (r1, s1) = (rmin, 0) and (r2, s2) = (rmax, L – 1), where, r and s are gray-values of image before and after processing respectively, L is the max gray value allowed and rmax and rmin are maximum and minimum gray-values in image respectively. What should we term the transformation function if r1 = r2 = m, some mean gray-value. |
| A. | Linear function |
| B. | Thresholding function |
| C. | Intermediate function |
| D. | None of the mentioned |
| Answer» C. Intermediate function | |
| 5. |
When is the contrast stretching transformation a thresholding function, for r and s as gray-value of image before and after processing respectively? |
| A. | r1 = s1 and r2 = s2 |
| B. | r1 = r2, s1 = 0 and s2 = L – 1, L is the max gray value allowed |
| C. | r1 = 1 and r2 = 0 |
| D. | None of the mentioned |
| Answer» C. r1 = 1 and r2 = 0 | |
| 6. |
IN_BIT-PLANE_SLICING_IF_AN_IMAGE_IS_REPRESENTED_BY_8_BITS_AND_IS_COMPOSED_OF_EIGHT_1-BIT_PLANE,_WITH_PLANE_0_SHOWING_LEAST_SIGNIFICANT_BIT_AND_PLANE_7_SHOWING_MOST_SIGNIFICANT_BIT._THEN,_WHICH_PLANE(S)_CONTAIN_THE_MAJORITY_OF_VISUALLY_SIGNIFICANT_DATA.?$ |
| A. | Plane 4, 5, 6, 7 |
| B. | Plane 0, 1, 2, 3 |
| C. | Plane 0 |
| D. | Plane 2, 3, 4, 5 |
| Answer» B. Plane 0, 1, 2, 3 | |
| 7. |
Which of the following helps to obtain the number of bits to be used to quantize each pixel.$ |
| A. | Gray-level slicing |
| B. | Contrast stretching |
| C. | Contouring |
| D. | Bit-plane slicing |
| Answer» E. | |
| 8. |
Specific bit contribution in the image highlighting is the basic idea of _________? |
| A. | Contrast stretching |
| B. | Bit –plane slicing |
| C. | Thresholding |
| D. | Gray-level slicing |
| Answer» C. Thresholding | |
| 9. |
Which of the following transform produces a binary image after processing? |
| A. | Contrast stretching |
| B. | Gray-level slicing |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 10. |
What is/are the approach(s) of the gray-level slicing? |
| A. | To give all gray level of a specific range high value and a low value to all other gray levels |
| B. | To brighten the pixels gray-value of interest and preserve the background |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 11. |
A specific range of gray-levels highlighting is the basic idea of __________ |
| A. | Contrast stretching |
| B. | Bit –plane slicing |
| C. | Thresholding |
| D. | Gray-level slicing |
| Answer» E. | |
| 12. |
A contrast stretching result been obtained by setting (r1, s1) = (rmin, 0) and (r2, s2) = (rmax, L – 1), where, r and s are gray-values of image before and after processing respectively, L is the max gray value allowed and rmax and rmin are maximum and minimum gray-values in image respectively. What should we term the transformation function if r1 = r2 = m, some mean gray-value.$ |
| A. | Linear function |
| B. | Thresholding function |
| C. | Intermediate function |
| D. | None of the mentioned |
| Answer» C. Intermediate function | |
| 13. |
What condition prevents the intensity artifacts to be created while processing with contrast stretching, if r and s are gray-values of image before and after processing respectively? |
| A. | r<sub>1</sub> = s<sub>1</sub> and r<sub>2</sub> = s<sub>2</sub> |
| B. | r<sub>1</sub> = r<sub>2</sub>, s<sub>1</sub> = 0 and s<sub>2</sub> = L – 1, L is the max gray value allowed |
| C. | r<sub>1</sub> = 1 and r<sub>2</sub> = 0 |
| D. | r<sub>1</sub> ≤ r<sub>2</sub> and s<sub>1</sub> ≤ s<sub>2</sub> |
| Answer» E. | |
| 14. |
When is the contrast stretching transformation a linear function, for r and s as gray-value of image before and after processing respectively? |
| A. | r<sub>1</sub> = s<sub>1</sub> and r<sub>2</sub> = s<sub>2</sub> |
| B. | r<sub>1</sub> = r<sub>2</sub>, s<sub>1</sub> = 0 and s<sub>2</sub> = L – 1, L is the max gray value allowed |
| C. | r<sub>1</sub> = 1 and r<sub>2</sub> = 0 |
| D. | None of the mentioned |
| Answer» B. r<sub>1</sub> = r<sub>2</sub>, s<sub>1</sub> = 0 and s<sub>2</sub> = L ‚Äö√Ñ√∂‚àö√ë‚àö¬® 1, L is the max gray value allowed | |
| 15. |
Which gray-level transformation increase the dynamic range of gray-level in the image? |
| A. | Power-law transformations |
| B. | Negative transformations |
| C. | Contrast stretching |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |