Water Body Extraction using Mixture Analysis Techniques and Mathematical Morphology

In this work, Remote Sensing was used together with Digital Image Processing (DIP) for the extraction of the water body (Sao Paulo dam), using an orbital image. The techniques chosen or selected were mixture analysis, which have as theoretical basis the spectral proportion in the resolution element and aim to generate image-fraction corresponding to the pure components present in a resolution element, in the case of vegetation, soil and water, and Mathematical Morphology (MM), which is suitable for processing the images taking into account the geometry of the sets contained in them. The results obtained showed that the techniques used were effective, proving that they can be used to detect cartographic features in digital images and that they can be used later in conventional processes of cartographic updating.