Region Generation

## Region Generation

Generate a mask region at a specified position in an image. This mask region can be referenced by other modules. Unlike masks in other modules, it does not follow ROI changes, that is, it is at a fixed position and is used to shield or detect objects at specific positions in the image

## Usage Scenarios
Used when detecting or shielding objects at fixed positions

## Usage Method

Same as mask usage method.
For example, in the figure below, a mask region is generated at a fixed position on the edge of the image. After the blob module introduces the mask region, it can shield the edge of the image and only detect the object in the middle position.
![](/media/202602/2026-02-06_091452_3347620.7098896385159925.png)

Mask Edit
![](/media/202602/2026-02-06_091651_2110490.5727272300750952.png)

## Output Description
Running Result: Region creation success outputs True, otherwise outputs False.
Mask Count: Number of created regions.
Mask Total Area: Total area of created regions.
Mask Region: Created region output.
Center of Gravity Array: Center of gravity coordinates of created regions.
Rotated Rectangle Array: Array of minimum bounding rotated rectangles of created regions.
Regular Rectangle Array: Array of minimum bounding regular rectangles of created regions.

![](/media/202602/2026-02-06_104846_9839180.6876555124169242.png)

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Click here to jump to the corresponding Chinese manual page: [Region Generation](/doc/66)