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Map automatic scale reduction by means of mathematical morphology
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TLDR
This paper deals with the use of mathematical morphology for the automatic smoothing of contours in the plotting of digital maps using a simple IBM-PC-XT based image processing system, with promising results.Abstract:
This paper deals with the use of mathematical morphology for the automatic smoothing of contours in the plotting of digital maps. Due to scale reduction this operation is normally performed by human experts, since it is essential not to flood the map with information and, at the same time, not to miss any important feature. If a regular zoom out is used, one has no control over the results. In digital cartography scale reduction needs to be made automatically, but with a certain degree of control over the results. The mathematical morphology operators of dilation and erosion permit scale reduction in a controlled way if an appropriate structuring element (shape and size) is chosen. Using a simple IBM-PC-XT based image processing system (SITIM) it was possible to test this method for two real cases, with promising results.read more
Citations
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DissertationDOI
Generalização cartográfica em sistemas de informação geográfica: aplicação aos mapas de vegetação da Amazônia Brasileira.
Metodología de Generalización y Agregación Vectorial en Cartografía Digital, a Partir de la Expansión y Erosión de Polígonos
TL;DR: Asato et al. as discussed by the authors presented the Asato-C.G., C.G. and C.M. Asato's work on geologico-minero in Argentina.
References
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Book
Cartographic design and production
TL;DR: Cartographic representation: information and cartographic representation vision and perception map design and Cartographic symbols generalization names and lettering Cartographic technology: image generation and reproduction process photography non-silver halide processes machine printing as discussed by the authors Cartographic production: organization and planning compilation line image production production of area images proofing.
Journal Article
Automatic line generalization using zero-crossings
TL;DR: An algorithm which is successful in automatically generalizing lines from any large scale to any small scale is presented and the algorthm achieves different levels of smoothing the line while preserving the overall shape of the line.