Back to Adaptive Vision Library website

You are here: Start » Function Reference » Profile Features » ProfileZeroCrossings

ProfileZeroCrossings


Finds the points of a profile at which the profile intersects the x-axis.

Syntax

C++
C#
 
void avl::ProfileZeroCrossings
(
	const avl::Profile& inProfile,
	atl::Array<float>& outZeroCrossings
)

Parameters

Name Type Default Description
inProfile const Profile& Input profile
outZeroCrossings Array<float>& X coordinates of the locations where the profile crosses the y=0 axis

Description

The operation assumes linear interpolation between the profile values and finds precise locations at which the profile crosses the horizontal \(y = 0\) axis. For the constant profile sections of value 0 only the integer coordinates of the sampling points in the section are returned.

Examples

inProfile = {-1.0,3.0,0.0,0.0,0.0} outZeroCrossings = {0.25, 2.0, 3.0, 4.0}