This week's module delved further into the features of ERDAS Imagine. We learned how high-pass and low-pass filters change aerial imagery, how image histograms are used to assist in feature identification, and how different band combinations enhance specific features such as water bodies.
This map layout depicts an area of Washington State where a stream meets the bay. Highlighted in light blue is the feature of interest that is bright in band layers 1-3, and unchanged in layers 5-6. Using a combination of Red: 4, Green: 3 and Blue: 2 I was able to highlight this variation in the water.
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