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Automatic color map digitization by spectral classificationA method of converting polygon map information into a digital form which does not require manual tracing of polygon edges is discussed. The maps must be in color-coded format with a unique color for each category in the map. Color scanning using a microdensitometer is employed and a three-channel color separation digital data set is generated. The digital data are then classified by using a Gaussian maximum likelihood classifier, and the resulting digitized map is evaluated. Very good agreement is observed between the classified and original map.
Document ID
19790047464
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Chu, N. Y.
(Purdue Univ. West Lafayette, IN, United States)
Anuta, P. E.
(Purdue University West Lafayette, Ind., United States)
Date Acquired
August 9, 2013
Publication Date
April 1, 1979
Publication Information
Publication: Photogrammetric Engineering and Remote Sensing
Volume: 45
Subject Category
Earth Resources And Remote Sensing
Accession Number
79A31477
Funding Number(s)
CONTRACT_GRANT: NAS9-14970
Distribution Limits
Public
Copyright
Other

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