Método de seleção de composições coloridas TM/Landsat para análise de classes de uso da terra / Method of selection of TM/Landsat color composition for analysis of land use classes

AUTOR(ES)
DATA DE PUBLICAÇÃO

1990

RESUMO

The objective of this research is to determine the colour composites generated using digital processing (feature selection and radiometric enhancement) that enhance visual interpretation and improve the separability of land use classes in Conchal, São Paulo State. The procedure used is based on a comparison among thematic classes, taking into consideration the following visual parameters: such as shape, texture, colour and tone. A set of images was interpreted by different photointerpreters. The results from each interpreter were compared to the ground truth data, and, then, a multiple comparison test (Scheffé) was applied. The results of the analysis showed that the best colour composites were 3B2G4R, enhanced by contrast stretch, 4I5H1S and 4I7H2S, enhanced by IHS/RGB transformation. The colour parameter has the best performance and citrus (8 years), pinus and sugar cane (third stage) presented better separability among the land use classes analysed.

ASSUNTO(S)

pinus color composite satelites landsat groud truth sugar cane conchal (sp) uso da terra radiometro cana soca image processing citrus estudos integrados do meio ambiente shapes textures processamento de imagens land use citrus trees composicao colorida mapeador tematico (landsat) thematic mappers (landsat)radiometers

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