Digital Image Processing Nptel Week 5 Answers
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Digital Image Processing Nptel Week 5 Answers (July-Dec 2025)
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Question 1. This question has Statement 1 and Statement 2. Of the four choices given after the statements, choose the one that best describes the two statements.
Statement 1: FIR filtering is an application of convolution
Statement 2: Median filtering is an application of convolution
a) Statement 1 is True and Statement 2 is False
b) Statement 1 is False and Statement 2 is True
c) Statement 1 is True and Statement 2 is True
d) Statement 1 is False and Statement 2 is False
Question 2. Determine the linear convolution of two sequences x(n) = {3, 2, 1} and h(n) = {3, 2, 1}
a) y(n) = {9, 12, 10, 4, 1}
b) y(n) = {9, 12, 4, 4, 1}
c) y(n) = {9, 10, 12, 4, 1}
d) y(n) = {3, 8, 8, 1, 9, 4, 4}
Question 3. Which of the pair does form an Orthogonal Pair?
a) sin(2nft), sin(4nft)
b) sin(2nft), cos(√3nft)
c) cos(2nft), cos(√2nft)
d) All of the above
These are Digital Image Processing Nptel Week 5 Answers
Question 4. For a given 2 × 2 image U and 2 × 2 transformation matrix A, what will be the transformed image V?
a) …
b) …
c) …
d) None of the above
Question 5. This question has Statement 1 and Statement 2. Of the four choices given after the statements, choose the one that best describes the two statements.
Statement 1: DTFT is applied to continuous infinite signals
Statement 2: DTFT is applied to infinite discrete sequences
a) Statement 1 is True and Statement 2 is False
b) Statement 1 is False and Statement 2 is True
c) Statement 1 is True and Statement 2 is True
d) Statement 1 is False and Statement 2 is False
Question 6. How does image transformation represent a given image?
a) a series summation of a set of Symmetric Matrices
b) a series summation of a set of Unitary Matrices
c) a series summation of a set of Skew-Symmetric Matrices
d) None of the above
Question 7. What will be the Kronecker product A ⊗ B of the matrices A and B?
a) …
b) …
c) …
d) None of the above
These are Digital Image Processing Nptel Week 5 Answers
Question 8. What will be the basis image A₀₀ for a given 2 × 2 transformation matrix A?
a) [0.5 0.5; 0.5 0.5]
b) [0.5 –0.5; 0.5 –0.5]
c) [0.25 0.25; 0.25 0.25]
d) None of the above
Question 9. Which of the following can be used as a transformation matrix?
a) …
b) …
c) …
d) None of these
Question 10. This question has Statement 1 and Statement 2. Of the four choices given after the statements, choose the one that best describes the two statements.
Statement 1: A = A is true for an orthogonal matrix
Statement 2: A⁻¹ = Aᵀ is true for an orthogonal matrix
a) Statement 1 is True and Statement 2 is False
b) Statement 1 is False and Statement 2 is True
c) Statement 1 is True and Statement 2 is True
d) Statement 1 is False and Statement 2 is False
These are Digital Image Processing Nptel Week 5 Answers