TIEVisionImage.findContours
Declaration
function findContours(mode: TIEVisionContourRetrMode; method: TIEVisionContourApproxMethod; offset: TIEVisionPoint): TIEVisionVectorObjRef; safecall;Description
Find contours in the current image.The image must be ievUINT8, 1 channel. Result will be a vector of a vector of points, i.e. a 2D point array (TIEVisionVectorObjRef will contain TIEVision VectorPoint objects).
| Parameter | Description |
|---|---|
| mode | Contour retrieval mode |
| method | Contour approximation method |
| offset | Optional offset by which every contour point is shifted |
Demo
 | Demos\IEVision\TrackObjects_LowLevel\TrackObjects.dpr |
Example
// Extract all contourscontours := backProj.findContours(ievEXTERNAL, ievCHAIN_APPROX_SIMPLE, IEVisionPoint(0, 0));