FindEdgeOptions
Describes how you want the function to search for edges and the information the function overlays to the image.
Elements
| Name | Type | Description |
|---|---|---|
| threshold | int | Specifies the threshold for the contrast of an edge. During the detection process, the function identifies only edges with a contrast greater than this value. Contrast is defined as the difference between the average pixel intensity before an edge and the average pixel intensity after an edge. |
| width | int | The number of pixels that the function averages to find the contrast at either side of the edge. |
| steepness | int | The span, in pixels, of the slope of the edge projected along the path specified by the input points. |
| subsamplingRatio | double | The number of pixels that separates two consecutive search lines. |
| showSearchArea | int | If TRUE, the function overlays the search area on the image. If you do not want this information overlaid onto the image, set this element to FALSE. |
| showSearchLines | int | If TRUE, the function overlays the search lines used to locate the edges on the image. If you do not want this information overlaid onto the image, set this element to FALSE. |
| showEdgesFound | int | If TRUE, the function overlays the locations of the edges found on the image. If you do not want this information overlaid onto the image, set this element to FALSE. |
| showResult | int | If TRUE, the function overlays the hit lines to the object and the edge used to generate the hit line on the result image. When applicable, the function also overlays the location of any measurements made by the function. If you do not want this information overlaid onto the image, set this element to FALSE. |