Q. If f(x, y) is a digital image, then x, y and amplitude values of f are

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Q. The feasible region represented by the constraints x1–x2<=1, x1+x2>=3, x1>=0, x2>=0 of the objective function Max Z=3x1+2x2 is

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Q. The colour of an object is largely determined by its diffuse reflection coefficient. If Kd = (0.8, 0.4, 0), then what shall be the colour of the object, if the light used is blue and magenta ?

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Q. If a and b are the end points of a line, then which one of the following is true ?

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Q. Halftoning is defined as

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Q. Circle has …………….

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Q. A clustering technique that permits a convenient graphical display is:

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Q. The technique used for producing color displays with random scan CRT monitors:

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Q. The type of geometric transformation applied to an object for re-positioning it along a straight line path from one location to another:

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Q. A raster scan display system with 24 bits per pixel and a screen resolution of 1024x1024 requires a frame buffer size

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Q. If the frame buffer has 10-bits per pixel and 8-bits are allocated for each of the R,G, and B components, then what would be the size of the color lookup table (LUT)?

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Q. In 3D Graphics, which of the following statements about perspective and parallel projection is/are true?

P: In a perspective projection, the farthest an object is from the centre of projection, the smaller it appears.
Q: Parallel projection is equivalent to a perspective projection where the viewer is standing infinitely far away.
R: Perspective projections do not preserve straight lines.

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Q. In 3D Graphics, which of the following statements is/are true?

P: Back-face culling is an example of an image-precision visible-surface determination procedure.
Q: Z- buffer is a 16-bit, 32-bit, or 64 bit field associated with each pixel in a frame buffer that can be used to determine the visible
surfaces at each pixel.

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Q. A graphic display system has a frame buffer that is 640 pixels wide, 480 pixels high and 1 bit of color depth. If the access time for each pixel on the average is 200 nanoseconds, then the refresh rate of this frame buffer is approximately:

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Q. Which of the following statements is/are True regarding the solution to the visibility problem in 3D graphics?

S1: The Painter’s algorithm sorts polygons by depth and then paints (scan - converts) each Polygon on to the screen starting with the most nearest polygon.
S2: Backface Culling refers to eliminating geometry with backfacing normals.

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Q. Which of the following is not a component of Memory tube display?

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Q. Which of the following is not true in case of Oblique Projections?

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Q. With respect to CRT, the horizontal retrace is defined as :

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Q. Find the equation of the circle x^2+y^2=1 in terms of x'y' coordinates, assuming that the xy coordinate system results from a scaling of 3 units in the x' direction and 4 units in the y' direction.

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