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# Image processing

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### Image processing

1. 1. www.jntuworld.com Code No: 05411205 Set No. 1 JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD IV B.Tech. II Sem., I Mid-Term Examinations, March – 2010 IMAGE PROCESSING Objective Exam Name: ______________________________ Hall Ticket No. A Answer All Questions. All Questions Carry Equal Marks.Time: 20 Min. Marks: 20. I Choose the correct alternative: 1. Scaling of an image is performed during _________ stage. [ ] a. Image Acquisition b. Image Enhancement c. Morphological Processing d. Image Compression 2. If f(x,y) represents an image, then which of the following is the most suitable option? [ ] a. 0 < f(x,y) < 1 b. 1 < f(x,y) < ∞ c. 0 < f(x,y) < ∞ d. 0 < f(x,y) < 1 3. The equation s = crγ reduces to identity transformation when a. C = 1 b. γ = 0, c = 1 c. C = γ = 1 D d. γ = 0 L [ ] R 4. Which of the following is not a piecewise linear transformation function? [ ] a. Contrast Stretching b. Gray – level slicing c. Bit plane slicing d. Histogram Equalization 5. O The transformation function T(r) is monotonic. What do you infer from this? [ ] I. U W T(r) is single-valued at any point. II. T(r) covers the whole range of values from black to white in the output image III. T(r) is a discrete-valued function. a. Both I and II are true b. Only II is true c. Only I is true d. All three are true. 6. N T The method used to generate a processed image that has a specified histogram is a. Histogram Equalization c. Histogram processing b. Histogram specification d. Histogram linearization [ ] 7. 8. J Mask mode radiography uses which of the following methods? a. Image Subtraction b. Image Averaging c. Spatial Filtering A: Pixels are modified based on the gray-level content of the entire image d. Smoothing [ ] R: The no. of pixels in the smaller areas may have negligible influence on the computation of the global transformation [ ] a. Both A and R are true and R is the correct explanation of A. b. Both A and R are true but R is not the correct explanation of A. c. A is true and R is false. d. A is false and R is true. 9. Let A = Euclidian distance, B = City-block distance and C = Chessboard distance between the points P(3,5) and Q(4,7). Then [ ] a. A > B > C b. B > A > C c. A > C > B d. C > A > B 10. Image Restoration involves _______________________ [ ] a. Image Multiplication b. Image Averaging c. Image Subtraction d. Smoothing Cont…2 www.jntuworld.com
2. 2. www.jntuworld.com Code No: 05411205 -2- Set No. 1 II. Fill in the blanks: 11. Digitizing the coordinate values is called __________________. 12. __________________ methods are procedures that operate directly on pixels. 13. The general form of log transformation is _______________________. 14. The process used to correct the power law response phenomena is called _______. 15. In isotropic filters, the response is independent of ______in the image to which the filter is applied. 16. __________________ is used to enhance prominent edges in an image. 17. 18. The standard deviation of Rayliegh Noise is given by ________________. L D ___________________ filter works well for salt noise but fails for pepper noise. 19. 20. Express I in terms of R, G, B. _____________ O R ____________________ consists of assigning colors to gray values based on a specified criterion. U W N T -oOo- J www.jntuworld.com
3. 3. www.jntuworld.com Code No: 05411205 Set No. 2 JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD IV B.Tech. II Sem., I Mid-Term Examinations, March – 2010 IMAGE PROCESSING Objective Exam Name: ______________________________ Hall Ticket No. A Answer All Questions. All Questions Carry Equal Marks.Time: 20 Min. Marks: 20. I Choose the correct alternative: 1. Which of the following is not a piecewise linear transformation function? [ ] a. Contrast Stretching b. Gray – level slicing c. Bit plane slicing d. Histogram Equalization 2. The transformation function T(r) is monotonic. What do you infer from this? [ ] I. T(r) is single-valued at any point. II. T(r) covers the whole range of values from black to white in the output image 3. III. T(r) is a discrete-valued function. a. Both I and II are true b. Only II is true c. Only I is true L D d. All three are true. The method used to generate a processed image that has a specified histogram is [ ] 4. a. Histogram Equalization c. Histogram processing O R b. Histogram specification d. Histogram linearization Mask mode radiography uses which of the following methods? [ ] 5. U W a. Image Subtraction b. Image Averaging c. Spatial Filtering A: Pixels are modified based on the gray-level content of the entire image d. Smoothing R: The no. of pixels in the smaller areas may have negligible influence on the computation of the T global transformation a. Both A and R are true and R is the correct explanation of A. N b. Both A and R are true but R is not the correct explanation of A. c. A is true and R is false. d. A is false and R is true. [ ] 6. J Let A = Euclidian distance, B = City-block distance and C = Chessboard distance between the points P(3,5) and Q(4,7). Then a. A > B > C b. B > A > C c. A > C > B d. C > A > B [ ] 7. Image Restoration involves _______________________ [ ] a. Image Multiplication b. Image Averaging c. Image Subtraction d. Smoothing 8. Scaling of an image is performed during _________ stage. [ ] a. Image Acquisition b. Image Enhancement c. Morphological Processing d. Image Compression 9. If f(x,y) represents an image, then which of the following is the most suitable option? [ ] a. 0 < f(x,y) < 1 b. 1 < f(x,y) < ∞ c. 0 < f(x,y) < ∞ d. 0 < f(x,y) < 1 10. The equation s = crγ reduces to identity transformation when [ ] a. C = 1 b. γ = 0, c = 1 c. C = γ = 1 d. γ = 0 Cont…2 www.jntuworld.com
4. 4. www.jntuworld.com Code No: 05411205 -2- Set No. 2 II. Fill in the blanks: 11. The process used to correct the power law response phenomena is called _______. 12. In isotropic filters, the response is independent of ______in the image to which the filter is applied. 13. __________________ is used to enhance prominent edges in an image. 14. The standard deviation of Rayliegh Noise is given by ________________. 15. ___________________ filter works well for salt noise but fails for pepper noise. 16. ____________________ consists of assigning colors to gray values based on a specified criterion. 17. 18. Express I in terms of R, G, B. _____________ Digitizing the coordinate values is called __________________. L D 19. 20. O R __________________ methods are procedures that operate directly on pixels. The general form of log transformation is _______________________. U W N T -oOo- J www.jntuworld.com
5. 5. www.jntuworld.com Code No: 05411205 Set No. 3 JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD IV B.Tech. II Sem., I Mid-Term Examinations, March – 2010 IMAGE PROCESSING Objective Exam Name: ______________________________ Hall Ticket No. A Answer All Questions. All Questions Carry Equal Marks.Time: 20 Min. Marks: 20. I Choose the correct alternative: 1. The method used to generate a processed image that has a specified histogram is [ ] a. Histogram Equalization b. Histogram specification c. Histogram processing d. Histogram linearization 2. Mask mode radiography uses which of the following methods? [ ] a. Image Subtraction b. Image Averaging c. Spatial Filtering d. Smoothing 3. global transformation a. Both A and R are true and R is the correct explanation of A. L D A: Pixels are modified based on the gray-level content of the entire image R: The no. of pixels in the smaller areas may have negligible influence on the computation of the [ ] 4. R b. Both A and R are true but R is not the correct explanation of A. c. A is true and R is false. d. A is false and R is true. O Let A = Euclidian distance, B = City-block distance and C = Chessboard distance between the 5. points P(3,5) and Q(4,7). Then a. A > B > C b. B > A > C U W c. A > C > B Image Restoration involves _______________________ d. C > A > B [ [ ] ] 6. N T a. Image Multiplication b. Image Averaging c. Image Subtraction Scaling of an image is performed during _________ stage. a. Image Acquisition b. Image Enhancement d. Smoothing [ ] 7. J c. Morphological Processing a. 0 < f(x,y) < 1 d. Image Compression If f(x,y) represents an image, then which of the following is the most suitable option? b. 1 < f(x,y) < ∞ c. 0 < f(x,y) < ∞ [ d. 0 < f(x,y) < 1 ] 8. The equation s = crγ reduces to identity transformation when [ ] a. C = 1 b. γ = 0, c = 1 c. C = γ = 1 d. γ = 0 9. Which of the following is not a piecewise linear transformation function? [ ] a. Contrast Stretching b. Gray – level slicing c. Bit plane slicing d. Histogram Equalization 10. The transformation function T(r) is monotonic. What do you infer from this? [ ] I. T(r) is single-valued at any point. II. T(r) covers the whole range of values from black to white in the output image III. T(r) is a discrete-valued function. a. Both I and II are true b. Only II is true c. Only I is true d. All three are true. Cont…2 www.jntuworld.com
6. 6. www.jntuworld.com Code No: 05411205 -2- Set No. 3 II. Fill in the blanks: 11. __________________ is used to enhance prominent edges in an image. 12. The standard deviation of Rayliegh Noise is given by ________________. 13. ___________________ filter works well for salt noise but fails for pepper noise. 14. ____________________ consists of assigning colors to gray values based on a specified criterion. 15. Express I in terms of R, G, B. _____________ 16. Digitizing the coordinate values is called __________________. 17. 18. The general form of log transformation is _______________________. L D __________________ methods are procedures that operate directly on pixels. 19. 20. O R The process used to correct the power law response phenomena is called _______. In isotropic filters, the response is independent of ______in the image to which the filter is applied. U W N T -oOo- J www.jntuworld.com
7. 7. www.jntuworld.com Code No: 05411205 Set No. 4 JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD IV B.Tech. II Sem., I Mid-Term Examinations, March – 2010 IMAGE PROCESSING Objective Exam Name: ______________________________ Hall Ticket No. A Answer All Questions. All Questions Carry Equal Marks.Time: 20 Min. Marks: 20. I Choose the correct alternative: 1.. A: Pixels are modified based on the gray-level content of the entire image R: The no. of pixels in the smaller areas may have negligible influence on the computation of the global transformation [ ] a. Both A and R are true and R is the correct explanation of A. b. Both A and R are true but R is not the correct explanation of A. c. A is true and R is false. d. A is false and R is true. 2. a. A > B > C b. B > A > C c. A > C > B L D Let A = Euclidian distance, B = City-block distance and C = Chessboard distance between the points P(3,5) and Q(4,7). Then d. C > A > B [ ] 3. 4. Image Restoration involves _______________________ a. Image Multiplication b. Image Averaging O R Scaling of an image is performed during _________ stage. c. Image Subtraction [ ] d. Smoothing [ ] 5. a. Image Acquisition c. Morphological Processing U W b. Image Enhancement d. Image Compression If f(x,y) represents an image, then which of the following is the most suitable option? [ ] 6. a. 0 < f(x,y) < 1 a. C = 1 N T b. 1 < f(x,y) < ∞ b. γ = 0, c = 1 c. 0 < f(x,y) < ∞ The equation s = crγ reduces to identity transformation when c. C = γ = 1 d. γ = 0 d. 0 < f(x,y) < 1 [ ] 7. J Which of the following is not a piecewise linear transformation function? a. Contrast Stretching d. Bit plane slicing b. Gray – level slicing d. Histogram Equalization [ ] 8. The transformation function T(r) is monotonic. What do you infer from this? [ ] I. T(r) is single-valued at any point. II. T(r) covers the whole range of values from black to white in the output image III. T(r) is a discrete-valued function. a. Both I and II are true b. Only II is true c. Only I is true d. All three are true. 9. The method used to generate a processed image that has a specified histogram is [ ] a. Histogram Equalization b. Histogram specification c. Histogram processing d. Histogram linearization 10. Mask mode radiography uses which of the following methods? [ ] a. Image Subtraction b. Image Averaging c. Spatial Filtering d. Smoothing Cont…2 www.jntuworld.com
8. 8. www.jntuworld.com Code No: 05411205 -2- Set No. 4 II. Fill in the blanks: 11. ___________________ filter works well for salt noise but fails for pepper noise. 12. ____________________ consists of assigning colors to gray values based on a specified criterion. 13. Express I in terms of R, G, B. _____________ 14. Digitizing the coordinate values is called __________________. 15. __________________ methods are procedures that operate directly on pixels. 16. The general form of log transformation is _______________________. 17. 18. L D The process used to correct the power law response phenomena is called _______. In isotropic filters, the response is independent of ______in the image to which the filter is applied. 19. 20. O R __________________ is used to enhance prominent edges in an image. The standard deviation of Rayliegh Noise is given by ________________. U W N T -oOo- J www.jntuworld.com