Convert ROI to Region
Use this tool to convert regions of interest (ROIs), i.e., circles, paraxial rectangles, points, rectangles or segments, to regions. The ROIs that are being converted can either be connected from a previous tool or be drawn using the ROI buttons in the Tool Board. This tool might be useful because not all MERLIC tools accept ROIs as an input parameter.
Find out more about the different parameter and result types in the topic Parameter and Result Types.
Parameters
Basic Parameters
Image:
This parameter represents the input image.
ROI:
This parameter defines the region of interest (ROI) for the processing. If you want to use an ROI of a previous tool, you have to connect the parameter to the respective ROI result of the previous tool to make sure that the ROI is transmitted. If you want to draw your own ROI for conversion, use the ROI buttons on the left of the Tool Board.
It is not possible to connect ROIs from more than one previous tool. It is also not possible to draw your own ROIs in addition to a connected ROI. If there is already a connected ROI, the ROI buttons on the left of the Tool Board will be grayed out. However, if you connect an ROI after drawing your own ROI for conversion, the drawn ROI will be removed and only the connected ROI will be converted.
If you want to convert ROIs from several tools or convert drawn ROIs in addition to ROI results, you have to convert them individually by using multiple instances of this tool.
Method:
This parameter defines whether the connected ROIs are returned as one united region or as several individual regions. Per default, ROIs are returned as a united region. If only a single ROI is converted, this parameter does not influence the result.
|
Value |
Description |
|---|---|
|
united region |
The converted ROIs are returned as one united region. |
|
individual regions |
Each converted ROI is returned as an individual region. |
Results
Basic Results
Extracted Region:
This result returns the converted region. If you have chosen the method "united region", one region will be returned as a result. If you have chosen the method "individual regions", the number of returned regions is equal to the number of ROIs that were connected to or drawn with the tool.
Tool State:
"Tool State" returns information about the state of the tool and thus can be used for error handling. For more information, see Tool State Result
Additional Results
Processing Time:
This result returns the duration of the most recent execution of the tool in milliseconds. The result is provided as additional result. Therefore, it is hidden by default but it can be displayed via the 
button beside the tool results. For more information see the section Processing Time in the tool reference overview.
