---
title: Semantic Segmentation with Polygons
type: templates
category: Computer Vision
cat: computer-vision
order: 101
meta_title: Semantic Segmentation with Polygons Data Labeling Template
meta_description: Template for performing semantic segmentation with polygons with Label Studio for your machine learning and data science projects.
---

<img src="/images/templates/semantic-segmentation-with-polygons.png" alt="" class="gif-border" width="552px" height="408px" />

If you need to perform semantic segmentation on images using polygons, use this template.

<a href="https://app.humansignal.com/b/MjAy"
  target="_blank" rel="noopener" aria-label="Open in Label Studio" style="all:unset;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;border-radius:4px;border:1px solid rgb(109,135,241);padding:8px 12px;background:rgb(87 108 193);color:white;font-weight:500;font-family:sans-serif;gap:6px;transition:background 0.2s ease;" onmouseover="this.style.background='rgb(97 122 218)'" onmouseout="this.style.background='rgb(87 108 193)'">
  <svg style="width:20px;height:20px" viewBox="0 0 26 26" fill="none"><path fill="none" d="M3.5 4.5h19v18h-19z"/><path fill-rule="evenodd" clip-rule="evenodd" d="M25.7 7.503h-7.087V5.147H7.588V2.792h11.025V.436H25.7v7.067Zm-18.112 0H5.225v10.994H2.863V7.503H.5V.436h7.088v7.067Zm0 18.061v-7.067H.5v7.067h7.088ZM25.7 18.497v7.067h-7.088v-2.356H7.588v-2.355h11.025v-2.356H25.7Zm-2.363 0V7.503h-2.363v10.994h2.363Z" fill="white"/></svg>
  <span style="font-size:14px">Open in Label Studio</span>
  <svg style="width:16px;height:16px" viewBox="0 0 24 24"><path d="M14,3V5H17.59L7.76,14.83L9.17,16.24L19,6.41V10H21V3M19,19H5V5H12V3H5C3.89,3 3,3.9 3,5V19A2,2 0 0,0 5,21H19A2,2 0 0,0 21,19V12H19V19Z" fill="white"/></svg>
</a>

## Interactive Template Preview

<div id="main-preview"></div>

## Labeling Configuration

```html
<View>
  <Header value="Select label and click the image to start"/>
  <Image name="image" value="$image" zoom="true"/>
  <PolygonLabels name="label" toName="image"
                 strokeWidth="3" pointSize="small"
                 opacity="0.9">
    <Label value="Airplane" background="red"/>
    <Label value="Car" background="blue"/>
  </PolygonLabels>
</View>
```

## About the labeling configuration

All labeling configurations must be wrapped in [View](/tags/view.html) tags.

You can add a [header](/tags/header.html) to provide instructions to the annotator:
```xml
<Header value="Select label and click the image to start"/>
```

Use the [Image](/tags/image.html) object tag to specify the image data and allow annotators to zoom the image:
```xml
<Image name="image" value="$image" zoom="true"/>
```

Use the [PolygonLabels](/tags/polygonlabels.html) control tag to allow annotators to create polygons for specific labels. 
```xml
  <PolygonLabels name="label" toName="image"
                 strokeWidth="3" pointSize="small"
                 opacity="0.9">
    <Label value="Airplane" background="red"/>
    <Label value="Car" background="blue"/>
  </PolygonLabels>
```
Annotators can control the opacity of the polygons using the `opacity` argument, and the styling of the polygon tool using the `pointSize` and `strokeWidth` arguments. Use the `background` argument with the [Label](/tags/label.html) control tag to control the color of each polygon.

## Related tags

- [Header](/tags/header.html)
- [Image](/tags/image.html)
- [PolygonLabels](/tags/polygonlabels.html)
- [Label](/tags/label.html)