1. Visual Cognition factors

2. Shape
Spatial configuration of an object or set of objects

3. Size Areal measurement of an object.
Scale dependent!! Relative size is important.

4. Pattern
Repetition of alignment of shapes

5. Shadow Oblique illumination show the shape of objects.
Shadows enhance subdued topography/features

6. Tone/Color Tone… variations in shades of gray (black and white TV?)
Color… variations in spectral reflection recorded as specific parts of the visible spectrum (colors)

7. Texture
Patterns of aggregate features too small to be individually identified.
Scale dependent

8. Site/Association
Inherent relationship of an object with its environment.
Linkage of object/process with other objects/processes and spatial patterns

36. 1989 red band MSS Image 1975 red band MSS image