The objective for exercise 1 was to identify the tone and texture of an aerial photograph. Tone can be described as the brightness or darkness of an area so, the task was to create polygons around areas in the photograph that could be described as very light, light, medium, dark, and very dark. The next task was to identify areas of varying texture which involved a similar process to that of identifying tone. Texture in this case is defined as how smooth or rough the surface appears to be. For this task, polygons were drawn around areas perceived as either very fine, fine, mottled, coarse, and very coarse.
In these tasks, I did accomplish identifying areas of varying tones and textures. I had some challenges because I had to relearn how to create polygons but once I figured it out, the process went smoothly. My next challenge was labeling the polygons. In my first few attempts, the labels did not appear. I believe the problem was simply that the text was too large for the polygons so after adjusting a few settings, I was able to see the labels.
The objective of exercise 2 was to identify areas in an aerial photograph by the shape and size (an easily recognizable object like a tree or building), shadow ( an object that can be recognized by the shadow it casts like a water tower), pattern (an area that is recognizable not by a single object but by multiples of an object such as a farm), and association (areas in which conclusions can be drawn based on surrounding features).
With these tasks, new features had to be created, similar to exercise one, but these features were not drawn polygons and were instead points being made on the photo. This exercise went much smoother for me as I had worked out any difficulties in the process for the first exercise.
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