PolygonLabels

The PolygonLabels tag is used to create labeled polygons. Use to apply labels to polygons in semantic segmentation tasks.

Use with the following data types: image.

Parameters

Param	Type	Default	Description
name	string		Name of tag
toName	string		Name of image to label
[choice]	single | multiple	single	Configure whether you can select one or multiple labels
[maxUsages]	number		Maximum number of times a label can be used per task
[showInline]	boolean	true	Show labels in the same visual line
[opacity]	number	0.2	Opacity of polygon
[fillColor]	string		Polygon fill color in hexadecimal
[strokeColor]	string		Stroke color in hexadecimal
[strokeWidth]	number	1	Width of stroke
[pointSize]	small | medium | large	medium	Size of polygon handle points
[pointStyle]	rectangle | circle	rectangle	Style of points
[snap]	pixel | none	none	Snap polygon to image pixels

Result parameters

Name	Type	Description
original_width	number	width of the original image (px)
original_height	number	height of the original image (px)
image_rotation	number	rotation degree of the image (deg)
value	Object
value.points	Array.<Array.<number>>	list of (x, y) coordinates of the polygon by percentage of the image size (0-100)

Example JSON

{
  "original_width": 1920,
  "original_height": 1280,
  "image_rotation": 0,
  "value": {
    "points": [[2, 2], [3.5, 8.1], [3.5, 12.6]],
    "polygonlabels": ["Car"]
  }
}

Example

Basic labeling configuration for polygonal semantic segmentation of images

<View>
  <Image name="image" value="$image" />
  <PolygonLabels name="labels" toName="image">
    <Label value="Car" />
    <Label value="Sign" />
  </PolygonLabels>
</View>