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Geometric Transformations
Types of Transformations
Projective
affine 
linear
Linear: acts on a straight lines to yield either another straight line or a point. The vector (0, 0) is always transformed to (0, 0).
Affine: preserves parallel lines
Projective: parallel lines not necessarily preserved, but lines are sent to lines or points (not curves)
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Geometric Transformations - 09 MAY 95
Page 28 of 51
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