image processing unit 5 mcq

1. Compressed image can be recover back by
(A) Image contrast
(B) Image enhancement
(C) Image equalization
(D) Image decomposition

Correct option is D

2. What is the meaning of information ?
(A) Data
(B) Raw data
(C) Meaningful data
(D) None of these

Correct option is C

3. Sequence of digital video is
(A) Frames
(B) Pixels
(C) Coordinates
(D) Matrix

Correct option is A

4. What would you use compression for
(A) Making an image file smaller
(B) Modifying an image
(C) Both
(D) None of the above

Correct option is A

5. Which of the following algorithms is the best approach for solving Huffman codes?
(A) Brute force algorithm
(B) Greedy algorithm
(C) Exhaustive search
(D) Divide and conquer algorithm

Correct option is B

6. What is the running time of the Huffman encoding algorithm?
(A) O(log C)
(B) O(C)
(C) O(C log C)
(D) O(N log C)

Correct option is C

7. Digitizing the image intensity amplitude is called
(A) Framing
(B) Sampling
(C) Quantization
(D) None of the above

Correct option is C

8. Image compression comprised of
(A) Encoder
(B) Decoder
(C) Frames
(D) Both A and B

Correct option is D

9. What is the full form of RLE ?
(A) Run line encoder
(B) Run length electrode
(C) Run length encoding
(D) None of the above

Correct option is C

10. Which bitmap file format support the Run length encoding ?
(A) BMP
(B) PCX
(C) TIF
(D) All of the above

Correct option is D

11. In Huffman coding, data in a tree always occur?
(A) Roots
(B) Leaves
(C) Left sub trees
(D) Right sub trees

Correct option is B

12. Which of the following of a boundary is defined as the line perpendicular to the major axis?
(A) Minor axis
(B) Median axis
(C) Equidistant axis
(D) Equilateral axis

Correct option is C

13. The order of shape number for a closed boundary is:
(A) Even
(B) Odd
(C) 1
(D) Any positive value

Correct option is A

14. Which of the following techniques of boundary descriptions have the physical interpretation of boundary shape
(A) Laplace transform
(B) Fourier transform
(C) Statistical moments
(D) Curvature

Correct option is C

15. What does the total number of pixels in the region defines?
(A) Area
(B) Intensity
(C) Brightness
(D) None of the above

Correct option is A

16. For which of the following regions, compactness is minimal?
(A) Square
(B) Irregular
(C) Disk
(D) Rectangle

Correct option is C

17. On which of the following operation of an image, the topology of the region changes?
(A) Rotation
(B) Folding
(C) Stretching
(D) Change in distance measure

Correct option is B

18. Which of the following techniques is based on the Fourier transform?
(A) Spectral
(B) Structural
(C) Topological
(D) Statistical

Correct option is A

19. Based on the 4-directional code, the first difference of smallest magnitude is called as:
(A) Chain number
(B) Difference
(C) Difference number
(D) Shape number

Correct option is D

20. What is the unit of compactness of a region?:
(A) Meter
(B) Meter2
(C) Meter-1
(D) No units

Correct option is D