MCQOPTIONS
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MCQOPTIONS
This section includes 68 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. |
An image whose gray-levels span a significant portion of gray scale have __________ dynamic range while an image with dull, washed out gray look have __________ dynamic range. |
| A. | Low and High respectively |
| B. | High and Low respectively |
| C. | Both have High dynamic range, irrespective of gray levels span significance on gray scale |
| D. | Both have Low dynamic range, irrespective of gray levels span significance on gray scale |
| Answer» C. Both have High dynamic range, irrespective of gray levels span significance on gray scale | |
| 2. |
Matrix is made up of |
| A. | rows |
| B. | column |
| C. | values |
| D. | Both a and b |
| Answer» E. | |
| 3. |
Discernible small details of image is |
| A. | wide domain |
| B. | spatial domain |
| C. | frequency domain |
| D. | algebraic domain |
| Answer» C. frequency domain | |
| 4. |
To convert a continuous sensed data into Digital form, which of the following is required? |
| A. | Sampling |
| B. | Quantization |
| C. | Both Sampling and Quantization |
| D. | Neither Sampling nor Quantization |
| Answer» D. Neither Sampling nor Quantization | |
| 5. |
X-rays pass through the patient's body for generating diagnostic |
| A. | x-ray film |
| B. | rays |
| C. | images |
| D. | reel |
| Answer» B. rays | |
| 6. |
How does sampling gets accomplished with a sensing strip being used for image acquisition? |
| A. | The number of sensors in the strip establishes the sampling limitations in one image direction and Mechanical motion in the other direction |
| B. | The number of sensors in the sensing array establishes the limits of sampling in both directions |
| C. | The number of mechanical increments when the sensor is activated to collect data |
| D. | None of the mentioned |
| Answer» B. The number of sensors in the sensing array establishes the limits of sampling in both directions | |
| 7. |
A matrix is denoted by |
| A. | M.N |
| B. | M x N |
| C. | M+N |
| D. | MN |
| Answer» C. M+N | |
| 8. |
Mechanical digitizers are referred to |
| A. | densitometer |
| B. | micrometer |
| C. | microdensity |
| D. | microdensitometer |
| Answer» E. | |
| 9. |
Cone vision is called |
| A. | photopic |
| B. | photogenic |
| C. | photograph |
| D. | protoplasm |
| Answer» B. photogenic | |
| 10. |
One that is not the measuring substance of the image is |
| A. | radiance |
| B. | refraction |
| C. | illumination |
| D. | brightness |
| Answer» C. illumination | |
| 11. |
The choroid lies directly below the |
| A. | eye lid |
| B. | cornea |
| C. | retina |
| D. | sclera |
| Answer» E. | |
| 12. |
Value of speed of light constant c |
| A. | 2.998x10^8 |
| B. | 3.998x10^8 |
| C. | 4.998x10^8 |
| D. | 5.998x10^8 |
| Answer» B. 3.998x10^8 | |
| 13. |
Part of the eye , that is not the membrane of the eye is |
| A. | cornea |
| B. | cells |
| C. | retina |
| D. | choroid |
| Answer» C. retina | |
| 14. |
Black and white images have only |
| A. | 2 levels |
| B. | 3 levels |
| C. | 4 levels |
| D. | 5 levels |
| Answer» B. 3 levels | |
| 15. |
In MxN, N is no of |
| A. | intensity levels |
| B. | colors |
| C. | rows |
| D. | columns |
| Answer» E. | |
| 16. |
Value of plank's constant h is |
| A. | 9.55x10-34 |
| B. | 8.55x10-34 |
| C. | 7.55x10-34 |
| D. | 6.55x10-34 |
| Answer» E. | |
| 17. |
Image sensor produces |
| A. | voltage waveform |
| B. | current waveform |
| C. | audio |
| D. | discrete signals |
| Answer» B. current waveform | |
| 18. |
The quality of a digital image is well determined by ___________ |
| A. | The number of samples |
| B. | The discrete gray levels |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 19. |
Quantitatively, spatial resolution cannot be represented in which of the following ways |
| A. | line pairs |
| B. | pixels |
| C. | dots |
| D. | none of the Mentioned |
| Answer» E. | |
| 20. |
The procedure done on a digital image to alter the values of its individual pixels is |
| A. | Neighbourhood Operations |
| B. | Image Registration |
| C. | Geometric Spacial Transformation |
| D. | Single Pixel Operation |
| Answer» E. | |
| 21. |
Digitizing the image requires |
| A. | reflection |
| B. | sampling |
| C. | quantization |
| D. | Both b and c |
| Answer» E. | |
| 22. |
Gamma rays have largest |
| A. | wavelength |
| B. | frequency |
| C. | energy |
| D. | power |
| Answer» C. energy | |
| 23. |
Image processing approaches operating directly on pixels of input image work directly in ____________ |
| A. | Transform domain |
| B. | Spatial domain |
| C. | Inverse transformation |
| D. | None of the Mentioned |
| Answer» C. Inverse transformation | |
| 24. |
Hard x-rays are used in |
| A. | medicines |
| B. | lithoscopy |
| C. | industry |
| D. | radar |
| Answer» D. radar | |
| 25. |
Validate the statement “When in an Image an appreciable number of pixels exhibit high dynamic range, the image will have high contrast.” |
| A. | True |
| B. | False |
| C. | May be |
| D. | Can't Say |
| Answer» B. False | |
| 26. |
DPI stands for |
| A. | dots per image |
| B. | dots per inches |
| C. | dots per intensity |
| D. | diameter per inches |
| Answer» C. dots per intensity | |
| 27. |
After digitization process a digital image with M rows and N columns have to be positive and for the number, L, max gray levels i.e. an integer power of 2 for each pixel. Then, the number b, of bits required to store a digitized image is: |
| A. | b=M*N*k |
| B. | b=M*N*L |
| C. | b=M*L*k |
| D. | b=L*N*k |
| Answer» B. b=M*N*L | |
| 28. |
No of bits to store image is denoted by the formula |
| A. | b = NxK |
| B. | b = MxN |
| C. | b = MxNxK |
| D. | b = MxK |
| Answer» D. b = MxK | |
| 29. |
MRI in imaging stands for |
| A. | magnetic resonance imaging |
| B. | magnetic resistance imaging |
| C. | magnetic resonance intensity |
| D. | major resonance imaging |
| Answer» B. magnetic resistance imaging | |
| 30. |
Types of imaging sensors are |
| A. | two |
| B. | three |
| C. | four |
| D. | five |
| Answer» C. four | |
| 31. |
E = hv in this expression, h is called |
| A. | speed of light |
| B. | light constant |
| C. | plank's constant |
| D. | acceleration constant |
| Answer» D. acceleration constant | |
| 32. |
The fovea itself is a circular indentation in the retina of about |
| A. | 1.8mm |
| B. | 1.5mm |
| C. | 1.6mm |
| D. | 1.7mm |
| Answer» C. 1.6mm | |
| 33. |
Type of zooms are |
| A. | 8 |
| B. | 6 |
| C. | 4 |
| D. | 2 |
| Answer» E. | |
| 34. |
The lens has a fixed |
| A. | focal length |
| B. | width |
| C. | length |
| D. | focal width |
| Answer» B. width | |
| 35. |
In Geometric Spacial Transformation, points whose locations are known precisely in input and reference images. |
| A. | Tie points |
| B. | Reseau points |
| C. | Known points |
| D. | Key-points |
| Answer» B. Reseau points | |
| 36. |
How is sampling accomplished when a sensing array is used for image acquisition? |
| A. | The number of sensors in the strip establishes the sampling limitations in one image direction and Mechanical motion in the other direction |
| B. | The number of sensors in the sensing array defines the limits of sampling in both directions |
| C. | The number of mechanical increments at which we activate the sensor to collect data |
| D. | None of the mentioned |
| Answer» C. The number of mechanical increments at which we activate the sensor to collect data | |
| 37. |
For a continuous image f(x, y), Quantization is defined as |
| A. | Digitizing the coordinate values |
| B. | Digitizing the amplitude values |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» C. All of the mentioned | |
| 38. |
For a continuous image f(x, y), how could be Sampling defined? |
| A. | Digitizing the coordinate values |
| B. | Digitizing the amplitude values |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» B. Digitizing the amplitude values | |
| 39. |
One that is not the type of image sensor is |
| A. | single sensor |
| B. | line sensor |
| C. | matrix sensor |
| D. | array sensor |
| Answer» D. array sensor | |
| 40. |
Radio waves have largest |
| A. | wavelength |
| B. | frequency |
| C. | energy |
| D. | power |
| Answer» B. frequency | |
| 41. |
Process of using known to estimate unknown is called |
| A. | interchange |
| B. | interpolation |
| C. | extrapolation |
| D. | estimation |
| Answer» C. extrapolation | |
| 42. |
In digital image of M rows and N columns and L discrete gray levels, calculate the bits required to store a digitized image for M=N=32 and L=16. |
| A. | 16384 |
| B. | 4096 |
| C. | 8192 |
| D. | 512 |
| Answer» C. 8192 | |
| 43. |
Dynamic range of imaging system is a ratio where the upper limit is determined by |
| A. | Saturation |
| B. | Noise |
| C. | Brightness |
| D. | Contrast |
| Answer» B. Noise | |
| 44. |
To convert a continuous image f(x, y) to digital form, we have to sample the function in __________ |
| A. | Coordinates |
| B. | Amplitude |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 45. |
Image linear interpolation is given by the formula |
| A. | v(x,y) = ax+by+cxy+d |
| B. | v(x,y) = ax+by+cxy |
| C. | v(x,y) = ax+by+d |
| D. | v(x,y) = by+cxy+d |
| Answer» B. v(x,y) = ax+by+cxy | |
| 46. |
Discernible change in intensity level of image is |
| A. | wide domain |
| B. | spatial domain |
| C. | frequency domain |
| D. | algebraic domain |
| Answer» D. algebraic domain | |
| 47. |
Black and white pixels of image are represented in matrix as |
| A. | 1 and 2 |
| B. | 0 and 1 |
| C. | 0 and 2 |
| D. | 0 and -1 |
| Answer» C. 0 and 2 | |
| 48. |
Digital image processing is build on mathematical and |
| A. | probabilistic formulations |
| B. | additional formulations |
| C. | probabilistic addition |
| D. | probabilistic subtraction |
| Answer» B. additional formulations | |
| 49. |
Digitizing the amplitude values is called |
| A. | radiance |
| B. | illuminance |
| C. | sampling |
| D. | quantization |
| Answer» E. | |
| 50. |
Functions that combines to produce Æ(x,y) |
| A. | illumination and frequency |
| B. | intensity and reflectance |
| C. | illumination and radiance |
| D. | illumination and reflectance |
| Answer» E. | |