Properties of contour codes

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Properties of contour codes

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The paper draws attention to the fundamental nature of the crack coding scheme, shows that the chain code and midcrack code may be derived from the crack code, and proves relationships between simple measures of perimeter and area as obtained from the different codes and from bit quads. An enclosing octagon is introduced.

Inspec keywords: image coding; feature extraction; codes

Other keywords: crack coding; bit quads; binary image coding; pixels; contour codes; area; enclosing octagon; perimeter; directed line; chain code; code string; feature extraction; midcrack code

Subjects: Codes; Optical information, image and video signal processing

References

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