Titlebook: Digital Image Processing; Bernd J?hne Book 20025th edition Springer-Verlag Berlin Heidelberg 2002 Digital Imaging.Digital imaging processi

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Needlework

Chronische Polyarthritis und Felty-SyndromThe task of . requires neighborhood operators that are sensitive to changes and suppress areas of constant gray values. In this way, a feature image is formed in which those parts of the image appear bright where changes occur while all other parts remain dark.

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Pixel ProcessingAfter a digital image has been captured, the first preprocessing steps include two classes of operations, point operations and geometric operations. Essentially, these two types of operations modify the “what” and “where” of a pixel.

最初

AveragingIn this chapter we will discuss neighborhood operations for performing the elementary task of averaging. This operation is of central importance for low-level image processing. It is one of the building blocks for the more complex feature extraction operators discussed in Chapters 13–15.

吹牛者

EdgesThe task of . requires neighborhood operators that are sensitive to changes and suppress areas of constant gray values. In this way, a feature image is formed in which those parts of the image appear bright where changes occur while all other parts remain dark.

刀鋒

Book 20025th editionandled with digital computers. How are images represented by arrays of digital num- bers in an adequate way? How are these data handled efficiently? Can fast algorithms be devised to convert one representation into another? A key example is the fast Fourier transform, discussed in Section 2.5. 2.2 S

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n an adequate way? How are these data handled efficiently? Can fast algorithms be devised to convert one representation into another? A key example is the fast Fourier transform, discussed in Section 2.5. 2.2 S978-3-662-04781-1

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Applications and Toolsverbal description and manual drawings. The next major step was the invention of . which enabled results to be documented objectively. Three prominent examples of scientific applications of photography are ., and .. Astronomers were able to measure positions and magnitudes of stars and photogrammete