MATLAB File Help: cv.pointPolygonTest Index
cv.pointPolygonTest

Performs a point-in-contour test

d = cv.pointPolygonTest(contour, pt)
d = cv.pointPolygonTest(..., 'OptionName',optionValue, ...)

Input

Output

Options

The function determines whether the point is inside a contour, outside, or lies on an edge (or coincides with a vertex). It returns positive (inside), negative (outside), or zero (on an edge) value, correspondingly. When MeasureDist=false, the return value is +1, -1, and 0, respectively. Otherwise, the return value is a signed distance between the point and the nearest contour edge.

See also