The magazine of the Melbourne PC User Group Digital Geometry Major Keary |
There is nothing new about digital images: in the pebble mosaics of the ancient world each pebble is a pixel; embroidery and embroided tapestry are digital images; and an example of a 19th century 'high resolution' digital image is a portrait ofJoseph-Marie Jacquard woven on one of his programmed looms — employing some 24,000 punched cards — using black and white silk [For more information on Jacquard see The Beginnings of Computing (http://www.melbpc.org.au/pcupdate/2007/2007article4.htm), and Computing in Russia (http://www.melbpc.org.au/pcupdate/2211/2211article13.htm)].
The authors of Digital Geometry are both recognised for their contribution to computer image analysis. In particular, the late Professor Azriel Rosenfeld "was widely regarded as the leading researcher ... in the field of computer image analysis"; he also published the first text book on the subject (1969, Picture Processing by Computer).
Digital Geometry deals with the concepts, methods, and algorithms of digital geometry. It is not a text for programmers or users of image manipulation software — unless one has a keen interest in the mathematics of digital image analysis. It is an academic text designed primarily for researchers and those studying image analysis, which "derives multidimensional information about objects or scenes from sensory data". Image analysis is not the same thing as computer graphics, which "synthesizes and generates digital pictures from models for objects or scenes".
Software engineers who create applications such as Photoshop, or who design software that controls scanners and digital cameras, need to understand the principles and mathematics of image analysis.
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Reinhard Klette and Azriel
Rosenfeld: Digital Geometry ISBN 1-55860-861-3 Published by Morgan Kaufmann, h.c., 656 pp., RRP $118.00 incl. GST |
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Reprinted from the July 2007 issue of PC Update, the magazine of Melbourne PC User Group, Australia
