imaqEdgeTool3
Usage
EdgeReport2* imaqEdgeTool3(const Image* image, const ROI* roi, EdgeProcess processType, const EdgeOptions2* edgeOptions);
Purpose
Finds edges along an ROI in an image.
 |
Note This function is obsolete. The replacement function is imaqEdgeTool4(). |
Image Types Supported
IMAQ_IMAGE_U8, IMAQ_IMAGE_I16, IMAQ_IMAGE_SGL
Parameters
|
Name
|
Type
|
Description
|
|---|---|---|
| image | const Image* | The image in which to find the edges. |
| roi | const ROI* | The ROI to find edges along. |
| processType | EdgeProcess | The edge process type. |
| edgeOptions | const EdgeOptions2* | Specifies the parameters that are used to compute the edge profile and detect edges. |
Return Value
| Type |
Description |
|---|---|
| EdgeReport2* | On success, this function returns a structure of information about the edges found. On failure, this function returns NULL. To get extended error information, call imaqGetLastError(). When you are finished with this structure, dispose of it by calling imaqDispose(). |
Parameter Discussion
edgeOptions—Set edgeOptions to NULL to use the following default values:
| polarity | IMAQ_SEARCH_FOR_ALL_EDGES |
| kernelSize | 3 |
| width | 3 |
| minThreshold | 10.0 |
| interpolationType | IMAQ_BILINEAR_FIXED |
| columnProcessingMode | IMAQ_MEDIAN_COLUMNS |