A Note on the Measurements of Quantized Areas and Boundaries.
Abstract
Pixels in quantized pictures are considered as cells in a grid, but a pixel may be represented by a lattice point placed at its center. It is argued that the perimeter of an area is its grid point boundary, not its lattice point boundary, the former always being 4 units greater than the latter, whatever the shape of the area. Use of the grid point boundary gives satisfactory values of perimeter, P, area, A, and compactness, P squared, with a minimum value of 16 for P squared. However, quantized drawn lines are most conveniently represented by the line joining lattice points, if an empirical procedure is adopted to remove ambiguities arising from the quantization. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1978
- Accession Number
- ADA064819
Entities
People
- Dennis Rosen
Organizations
- University of Maryland