Objects can be recognized in images if they differ from the background in at least one channel of the image signal. There is then a discontinuity at the border of the object or an edge. This is limited to a small area in the image.

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Discontinuities: Edges, Lines, Surfaces and Corners

  • Bernd Jähne

摘要

Objects can be recognized in images if they differ from the background in at least one channel of the image signal. There is then a discontinuity at the border of the object or an edge. This is limited to a small area in the image.