Calculating Impervious Surfaces From Spectral Imagery
This activity is based on the Learn ArcGIS lesson: Calculate Impervious Surfaces from Spectral Imagery . It utilizes AcrGIS Pro to familiarize users with Value Added Data Analysis. This lesson uses aerial imagery, like that collected with UAS, to classify surface types. It ultimately creates a layer that describes that impervious surfaces of a study area. Segment the imagery Users open up the existing Surface Impervious project first. The "Calculate Surface Imperviousness" tasks are used in this lesson. The first step is to extract the bands to create a new layer (Figure 1). Figure 1: Bands 4 1 3 are extracted to create a layer such as the image above. The next step is to group similar pixels into segments of image using the "Segment Mean Shift" Task. The parameters of Figure 2 are filled into the task to create a new layer (Figure 3). Figure 2: Parameters used to create a segment mean shifted layer. Figure 3: Result layer of...
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