Explain the term Image scanners
Explain the term Image scanners?
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♦ Drawings, color and black and white photos or text can be given as an input to the computer with an optical scanning mechanism.
♦ According to reflected light intensity the gradations of gray scale or color can be stored in an array
Explain the use of control points?
Define the term attribute parameter? Also illustrate the different attribute of a line?
Differentiate raster and random scan displays?
What is color look up table?
Describe the term Bezier curves? Illustrate its uses.
Define the term polygon?
What are the four cases of the Sutherland Hodgeman polygon clipping? Describe it in brief.
Distinguish between impact and non-impact printers?
What is orthographic parallel projection?
What do you mean by the term character up vector? Also explain pixel phasing?
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