NPTEL Digital Image Processing Week 4 Assignment Answers 2024
1.
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2.
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3. For an image, the type of Interpolation where the intensity of the four neighboring pixels is used to obtain intensity a new location is called_______________.
a) Bilinear interpolation
b) Cubic interpolation
Bicubic interpolation
d) Nearest neighbor interpolation
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4. Which of the following B-spline is not symmetric and hardly used?
a) Constant
b) Cubie
c) Linear
d) Quadratic
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5.
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6. The type of Interpolation in which the intensity for an unknown location is found by assigning
the intensity of the nearest pixel is_____________.
a) Bicubic interpolation
b) Constant interpolation
c) Cubic interpolation
d) Bilinear interpolation
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7. What are the desirable properties of an interpolation function?
I. Finite Region of Support.
II. Smooth Interpolation.
III. Shift Invariant
a) Only I and II.
b) Only II and III
c) None of I, Il and III.
d) All I. IT and III.
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8. Zooming of an image can be viewed as______________.
a) Over sampling
b) Under sampling
c) Critical sampling
d) Nyquist sampling
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9. What kind of sampling is required for scaling down (Shrinking) of an image?
a) Under sampling
b) Critical sampling
c) Over sampling
d) Nyquist sampling
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10. Which of the following B-spline function has maximum region of support?
a) Quadratic
b) Cubic
c) Linear
d) Constant
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