Calculates a contour perimeter or a curve length

len = cv.arcLength(curve)
len = cv.arcLength(curve, 'OptionName', optionValue)

Input

• curve Input vector of 2D points stored in numeric array (Nx2/Nx1x2/1xNx2) or cell array of 2-element vectors ({[x,y], ...}).

Output

• len Output length/perimeter.

Options

• Closed Flag indicating whether the curve is closed or not. default false.

The function computes a curve length or a closed contour perimeter.