Grid Size and Spacing.

At the top is an example of an image window (1000 x 1000 pixels, 0.23 μm/pixel). Highlighted is a 10x10 pixel subwindow. Below is the subwindow with different grid sizes and spacings illustrated. The first row illustrates grid sizes from 1x1 to 2x2, 4x4, and 8x8. A 1x1 grid is a single pixel and only capable of detecting color. Larger grids can detect increasingly complex texture patterns. We explored grids up to 128 x 128 pixels. The third row illustrates a 2x2 grid with different grid spacings (1x, 2x, 4x, 8x) imposed. We explored spacings as large as 128x.