CHARACTERIZATION AND EXTRACTION OF LATERITIC SOIL FEATURES BY REMOTE SENSING AND IMAGE PROCESSING TECHNIQUES APPLIED TO SATELLITE IMAGES

Revista Brasileira de Engenharia Agrícola e Ambiental

Sousa, Edilberto Bezerra de²  Candeias, Ana Lúcia Bezerra¹  Vertamatti, Eugênio³ 

[1] Universidade Federal de Pernambuco, Recife, Brazil;Universidade Federal da Paraíba, Campina Grande, Brazil;Instituto Tecnológico de Aeronáutica, São José dos Campos, Brazil

关键词:  soils;    remote sensing;    image processing;    mathematical morphology;   

DOI  :  10.1590/1807-1929/agriambi.v1n1p51-56

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

This paper presents a lateritic soil features identification based on remote sensing and image processing techniques. The test area is located in São Paulo state, near Campinas town, where the soil is composed of high percentage of iron. Soil map (1:50,000) of this region as well as TM-LANDSAT image of dry period, when the soil surface is nearly exposed, were available. Digital image processing techniques such as restoration linear contrast, stretching, I H S transformation, color attribute and closing opening filter were applied aiming to extract lateritic soils. SPRING platform and LEGAL language are used to implement the methodology.

【 授权许可】

Unknown