imaqEdgeFilter
Usage
int imaqEdgeFilter(Image* dest, Image* source, OutlineMethod method, const Image* mask);
Purpose
Applies a nonlinear filter to highlight edges.
Image Types Supported
IMAQ_IMAGE_U8, IMAQ_IMAGE_I16, IMAQ_IMAGE_SGL
Parameters
|
Name
|
Type
|
Description
|
|---|---|---|
| dest | Image* | The destination image. |
| source | Image* | The image of which the function highlights edges. The convolution modifies the border of the source image. The border must be at least one pixel wide. |
| method | OutlineMethod | Method to use when outlining the edges. |
| mask | const Image* | An optional mask image. This image must be an IMAQ_IMAGE_U8 image. The function filters only those pixels in the source image whose corresponding pixels in the mask are non-zero. Set this parameter to NULL to filter the whole source image. |
Return Value
| Type |
Description |
|---|---|
| int | On success, this function returns a non-zero value. On failure, this function returns 0. To get extended error information, call imaqGetLastError(). |
Parameter Discussion
source—This function modifies the source image. If you need the original image, create a copy of the image using imaqDuplicate() before using this function.