Feature-Finding > Symmetry Mapping

Measures the degree of specified symmetry about each pixel. Bright pixels in the symmetry filtered image indicate pixels which had high similarity of the specified angles.

1. Mapping

a. Window Size

Window size to consider about each pixel for the pattern map

b. Section Grid

Grid size square length to split the image into sections to avoid out-of-memory issues. A section grid of 3 splits the image in a 3×3 grid and processes each square in series

c. Calculate

Calculate symmetry map

2. Display

a. Single Angle

Display symmetry map for single angle. Options are 90°, 180°, and 270°. For example, selecting 90° will set each pixel based on the amount of 90° rotational symmetry about the pixel.

b. Multiple Angles

Display symmetry map for arithmetic between multiple angles. Set arithmetic for symmetry map from dropdowns.

c. Auto

Auto-display symmetry map. Select a method for auto-display.

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