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versão On-line ISSN 1870-9044


SURYNEK, Pavel  e  LUKSOVA, Ivana. Automated Classification of Bitmap Images using Decision Trees. Polibits [online]. 2011, n.44, pp. 11-18. ISSN 1870-9044.

The paper addresses the design of a method for automated classification of bitmap images into classes described by the user in natural language. Examples of such naturally defined classes are images depicting buildings, landscape, artistic images, etc. The proposed classification method is based on the extraction of suitable attributes from a bitmap image such as contrast, histogram, the occurrence of straight lines, etc. Extracted attributes are subsequently processed by a decision tree which has been trained in advance. A performed experimental evaluation with 5 classification classes showed that the proposed method has the accuracy of 75%-85%. The design of the method is general enough to allow the extension of the set of classification classes as well as the number of extracted attributes to increase the accuracy of classification.

Palavras-chave : Image classification; attribute extraction; decision trees; learning.

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