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Basic| Module: | OpenCV |
|---|
Draws contour outlines or filled contours.
| Name | Type | Range | Description | |
|---|---|---|---|---|
 |
inImage | Image | Input image. | |
|
inContours | PathArray | All the input contours. | |
|
inContourIdx | Integer | -1 -  |
Parameter indicating a contour to draw. If it is negative, all the contours are drawn. |
|
inColor | Pixel | Color of the contours. | |
|
inThickness | Integer | 1 - |
Thickness of lines the contours are drawn with. If it is negative, the contour interiors are drawn. |
|
inLineType | RegionConnectivity | Line connectivity. | |
|
inHierarchy | IntegerArrayArray* | Optional information about hierarchy. It is only needed if you want to draw only some of the contours. | |
|
inMaxLevel | Integer | Maximal level for drawn contours. If it is 0, only the specified contour is drawn. If it is 1, the function draws the contour(s) and all the nested contours. If it is 2, the function draws the contours, all the nested contours, all the nested-to-nested contours, and so on. This parameter is only taken into account when there is hierarchy available. | |
|
inOffset | Location* | Contour shift parameter. | |
 |
outImage | Image | Output image. | |
Errors
This filter can throw an exception to report error. Read how to deal with errors in Error Handling.
List of possible exceptions:
| Error type | Description |
|---|---|
| DomainError | Each array in inHierarchy must be an array made from 4 elements. |
| DomainError | inContourIdx is greater than number of contours in cvDrawContours. |
| DomainError | Number of elements in inHierarchy must be the same as in inContours in cvDrawContours. |
Complexity Level
This filter is available on Basic Complexity Level.
