Contrast Result

Applies To
Vision Objects: ArcFinder, ArcInspector, BoxFinder, CornerFinder, Edge, LineFinder, LineInspector

Description
Returns the contrast of the found edge.

Usage

VGet  Sequence.Object.Contrast[(result)], var

Sequence

Name of a sequence or string variable containing a sequence name.

Object

Name of an object or integer variable containing an object name

.

The object must exist in the specified sequence.

var

Real variable that will contain the value of the result.

result

Optional integer result number from 1 to the NumberOfResults property. If omitted, the result number is the CurrentResult.

Values
Integer number from 0–255

Remarks
Contrast is the difference in grayscale values between an edge and its background. Contrast can help find weaker edges. First, find the edge you want to search for and record the contrast value. Next, set the ContrastTarget property to this value. Then set the ScoreWeightContrast to a higher value that ScoreWeightStrength. This tells the Edge object to look for an edge with the desired contrast and base the score on it. For ArcFinder, ArcInspector, LineFinder, LineInspector objects, the Contrast result is the average contrast of all edges used in the search.

See Also
ArcFinder Object, ArcInspector Object, ContrastTarget Property, ContrastVariation Property, Edge Object, LineFinder Object, LineInspector Object, BoxFinder Object, CornerFinder Object