BUILT-IN MATHEMATICA SYMBOL
SelectComponents
SelectComponents[m, "prop", crit]
computes a property 
for all components in a label matrix m and returns a version of m in which components that do not satisfy crit are replaced with zeros.
SelectComponents[m, "prop", n]
gives a label matrix for the first n components, ranked by property 
.
- For the complete list of possible properties, see the reference page for ComponentMeasurements.
- SelectComponents[..., {"prop1", "prop2", ...}, ...] computes multiple properties.
- SelectComponents[m, Large] selects components whose size is greater than a globally determined threshold.
- SelectComponents[m, Small] selects the smaller components.
- SelectComponents[m, "prop", -n] returns a label matrix for the last n components.
- SelectComponents also works with binary images, using the connectivity of nonzero pixels to compute the label matrix.
- By default all eight pixels surrounding a pixel are treated as neighbors. Using the option setting CornerNeighbors->False treats only the four pixels in the coordinate directions as adjacent.
Select the outermost components in an image:
| Out[1]= |  |
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