October 2015
Beginner
551 pages
17h 46m
English
Content preview from A Computational Introduction to Digital Image Processing, 2nd Edition
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258 A Computational Introduction to Digital Image Processing, Second Edition
(a) With thresholding (b) With non-maximum suppression
FIGURE 9.37: Harris-Stephens corner detection
9.11 The Hough and Radon Transforms
These two transf orms can be used to find lines in an image. Although they seem very
different on initial explanation, they provide very similar information. The Hough transform
is possibly more efficient and faster; whereas the Radon transform is mathematically better
behaved—in its continuous form the Radon transform is fully invertible, and in its discrete
form (as in images) there are many different approximations to the inverse which can
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