F_VN_KeyPointsSB
Detects keypoints using a Simple Blob method
- several iterations apply different thresholds to source image
- connected components (blobs) are detected
- the center and radius of the blobs are returned as keypoints
Can use available TwinCAT Job Tasks for executing parallel code regions.
Syntax
Definition:
FUNCTION F_VN_KeyPointsSB : HRESULT
VAR_INPUT
ipSrcImage : ITcVnImage;
ipKeyPoints : Reference To ITcVnContainer;
hrPrev : HRESULT;
END_VAR
Inputs
Name |
Type |
Description |
---|---|---|
ipSrcImage |
Source image | |
ipKeyPoints |
Reference To ITcVnContainer |
Returns a container which is filled with the keypoints (ContainerType_Vector_TcVnKeyPoint; Non-zero interface pointers are reused.) |
hrPrev |
HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.) |
Required License
TC3 Vision Matching