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(1010 Pages:

Consider a raster system with a resolution of 2560 x 2048. Determine the frame
buffer size (in bytes) needed for the system to store 12-bits per pixel. How much
storage is required if 24-bits per pixel are to be stored?

Explain the working of a delta-delta shadow mask CRT.

Explain the non-zero winding number rule to identify interior regions of a

polygon.
PART C
Answer any two full questions, each carries 9 marks.

Perform the following transformations on a point (6, 4).

i) Translate by tx = -2 and ty =4

ii) then, Scale by sx =2 and sy = 1

111) and Rotate by 90° in clockwise direction. Determine the final coordinates

of the transformed point.

Prove that the multiplication of 2D transformation matrices for two successive
rotations is commutative.
Explain the concept of point clipping in 2D.

Explain Weiler Atherton polygon clipping algorithm with illustrations.

A rectangular parallelepiped is unit distance on Z-axis, 2 units on X-axis and 3
units on Y-axis. Determine the new coordinates of the parallelepiped when it is
rotated counter clockwise about X-axis by an angle of 45°.
What is a quadric surface? Explain about any one of the quadric surfaces.
Explain the Cohen Sutherland line clipping algorithm with suitable examples.
PART 0

Answer any two full questions, each carries 12 marks.
List out the differences between z-buffer method and A-buffer method for
determining the visible surfaces.
Describe about the depth-sorting method to display the visible surfaces of any
given object with plane faces. Also explain the tests to identify overlapping
surfaces.
Explain the components of a general purpose digital image processing system
with a neat diagram.
How edge detection is performed in digital images using
( 1) Sobel operator (ii) Prewitt operator.
What are the advantages of Sobel operator over Prewitt operator?
Derive the transformation matrix for oblique parallel projection with the help of
a neat diagram.
Discuss the role of histogram equalization in a digital image.

What do you mean by histogram of a digital image? Discuss on the histogram of
four basic image types.

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