---
title: BitmaskLabels
type: tags
order: 402
meta_title: Bitmask Label Tag for Pixel-Wise Image Segmentation Labeling

meta_description: Customize Label Studio with bitmask pixel-wise label tags for image segmentation labeling for machine learning and data science projects.

The Bitmask tag is for pixel-wise image segmentation tasks, and is used in the area where you want to apply a mask or use a brush to draw a region on the image.

Bitmask operates on the pixel level and outputs a base64-encoded PNG data URL image with black pixels on transparent background.

Export data example: data-url:image/png;[base64-encoded-string]

!!! note

You need to set `smoothing="false"` on the `<Image>` tag to be able to work with individual pixels. 

Use with the following data types: image.

{% insertmd includes/tags/bitmasklabels.md %}

Example

Basic image segmentation labeling configuration

<View>
  <BitmaskLabels name="labels" toName="image">
    <Label value="Person" />
    <Label value="Animal" />
  </BitmaskLabels>
  <Image name="image" value="$image" smoothing="false" />
</View>