This first week's assignment provides an introduction to visual interpretation elements. In doing so, it required looking at a couple different aerial photographs and then selecting specific elements that correspond to particular reference criteria. The first map shown below focuses on two specific criteria: texture and tone. Tone can be described as the brightness or darkness of an area, wile texture is how smooth or rough the surface appears. Five uniform areas were chosen to cover the range of both tone and texture of the aerial photograph. The tonal areas range from very light, light, medium, dark, and very dark. Whereas the textural areas that were chosen range from very fine (still water), fine, mottled, coarse, and very coarse (rough surface). The tonal areas are shown with the blue outline; the textural areas are shown with the green outline.
The second map below displays features that have been identified based on four criteria: shape and size, shadow, pattern, and association. Shape and size are criteria that first come to mind when visually identifying objects and features. This criteria is show in green in the map provided below. The features chosen for the shape and size criteria are: vehicles, road, and beach house. Shadows provide an additional resource for identifying features in aerial photographs. This criteria is displayed in blue with shrubs, water tower, and store front as the features chosen. Pattern is useful for identifying groups of objects that individually may be insignificant, but together can make up one larger feature. The features chosen for the pattern criteria are: beach, parking lot, and water. The chosen features are shown in pink. Finally, association is a combination of an item with local elements to distinguish a common purpose. The two features I chose for this criteria are: pier and neighborhood; these are shown in orange.
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