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Draws regions on an image with a single color.
Name | Type | Range | Description | |
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inImage | Image | Input image | |
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inRegions | Region?Array? | ||
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inRegionAlignment | CoordinateSystem2D* | ||
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inColor | Pixel | ||
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inOpacity | Real | 0.0 - 1.0 | |
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inForceRgb | Bool | Filter will convert monochromatic image to RGB if needed | |
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outImage | Image | Output image |
Applications
Apart from drawing can also be used to "clear" a part of an image.
Description
The operation draws an array of regions on the inImage using common drawing parameters for all of them.
Regions may exceed the image dimensions - those will be drawn partially or not at all, but the filter execution will succeed.
Hints
- Connect an image source to the inImage input. Drawing will be done on this image.
- If you want to draw on an empty background, use EmptyImage filter before.
- Define inRegions. This will be the primitives to be drawn.
- Define inColor. Please note, that on an N-channel image only first N components of the color will be used.
- Set inForceRgb to True, if you want to get a 3-channel output regardless of what is on the input.
Examples
Description of usage of this filter can be found in examples and tutorial: Comparing Golden Template, Extracting Capsule Shape.
![](../../img/filters/DrawRegions_SingleColor.png)
Example usage of the DrawRegions_SingleColor on an empty image.
Complexity Level
This filter is available on Basic Complexity Level.
Filter Group
This filter is member of DrawRegions filter group.