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ThresholdToRegion_RGB
Creates a region containing image pixels which belongs to the specified range for each individual pixel component.
| Name | Type | Range | Description | |
|---|---|---|---|---|
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inRgbImage | Image | Input image, usually in the RGB color space | |
|
inRoi | Region* | Region of interest | |
|
inMinRed | Integer* | 0 - 255 | Minimum for the first pixel component, usually Red (Auto = -INF) |
|
inMaxRed | Integer* | 0 - 255 | Maximum for the first pixel component, usually Red (Auto = +INF) |
|
inMinGreen | Integer* | 0 - 255 | Minimum for the second pixel component, usually Green (Auto = -INF) |
|
inMaxGreen | Integer* | 0 - 255 | Maximum for the second pixel component, usually Green (Auto = +INF) |
|
inMinBlue | Integer* | 0 - 255 | Minimum for the third pixel component, usually Blue (Auto = -INF) |
|
inMaxBlue | Integer* | 0 - 255 | Maximum for the third pixel component, usually Blue (Auto = +INF) |
 |
outRegion | Region | Output region | |
Only the following inRgbImage pixel formats are supported: 3xuint8
Applications
Description
The operation is a cousin of ThresholdImage_RGB yet it computes a region instead of an image. The three-channel inRgbImage is considered to be encoded using RGB color representation. The resulting region contains only those pixels of the input image, which meets all of the following conditions:
- Intensity of the "red" channel is in range (inMinRed, inMaxRed).
- Intensity of the "green" channel is in range (inMinGreen, inMaxGreen).
- Intensity of the "blue" channel is in range (inMinBlue, inMaxBlue).
If any of the parameters inMinRed, inMinGreen, inMinBlue is not set, it is assumed to be -infinity.
If any of the parameters inMaxRed, inMaxGreen, inMaxBlue is not set, it is assumed to be infinity.
Examples
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ThresholdToRegion_RGB performed on the sample image with inMinRed = 120.0, inMaxGreen = 100.0, inMaxBlue = 100.0.
Hardware Acceleration
This operation supports automatic parallelization for multicore and multiprocessor systems.
Errors
This filter can throw an exception to report error. Read how to deal with errors here: Error Handling
| Error type | Description |
|---|---|
| DomainError | Not a 3-channel and 8-bit image in ThresholdToRegion_RGB. |
Complexity Level
This filter is available on Advanced Complexity Level.
Filter Group
This filters is member of ThresholdToRegion filter group.
