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Computer Graphics Practice Test: Anti Aliasing
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Avg score: 86% • Most missed: “What is the use of Coherence techniques along and between scan lines?”

Anti-aliasing helps make digital images appear more realistic by eliminating the "staircase" effect that often appears on curved or angled lines. It can also eliminate jaggies that appear in objects in PC games.
Anti-aliasing works by softening the color transition between edge pixels and background pixels. Because only the edge pixels change, no detail is lost.

Computer Graphics Practice Test: Anti Aliasing
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15 Questions

1. The technique that is more accurate method for anti-aliasing lines is
2. Another method for determining the percentage of pixel area within a boundary is
3. To avoid losing information from periodic objects we need
4. The distortion of information due to low-frequency sampling is known as
5. What is the use of Coherence techniques along and between scan lines?
6. For a 45% line, the line path is________ on the polygon area.
7. An array of values specifying the relative importance of sub-pixel is referred as________ of sub-pixel weights.
8. The sampling of object characteristic at a high resolution and displaying the result at a lower resolution is called?
9. The procedure that increases the number of intensity levels for each pixel to total number of sub-pixels is
10. Anti-aliasing by computing overlap areas is referred to as
11. If we want to use more intensity levels to anti-alias the line, then
12. Super-sampling methods can be applied by
13. Nyquist sampling frequency formula is
14. Raster objects can also be anti-aliased by shifting the display location of pixel areas is known as
15. Area-sampling is also known as

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