react-imannotate

React Image Annotate

Features

• Simple input/output format
• Bounding Box, Point and Polygon Annotation
• Zooming, Scaling, Panning
• Multiple Images
• Cursor Crosshair

Usage

npm install react-image-annotate

import React from "react";
import ReactImageAnnotate from "react-image-annotate";

const App = () => (
  <ReactImageAnnotate
    labelImages
    regionClsList={["Alpha", "Beta", "Charlie", "Delta"]}
    regionTagList={["tag1", "tag2", "tag3"]}
    images={[
      {
        src: "https://placekitten.com/408/287",
        name: "Image 1",
        regions: []
      }
    ]}
  />
);

export default App;

To get the proper fonts, make sure to import the Inter UI or Roboto font, the following line added to a css file should suffice.

@import url("https://rsms.me/inter/inter.css");

Props

All of the following properties can be defined on the Annotator...

Prop	Type (* = required)	Description	Default
taskDescription	*string	Markdown description for what to do in the image.
allowedArea	{ x: number, y: number, w: number, h: number }	Area that is available for annotation.	Entire image.
regionTagList	Array<string>	Allowed "tags" (mutually inclusive classifications) for regions.
regionClsList	Array<string>	Allowed "classes" (mutually exclusive classifications) for regions.
regionColorList	Array<string>	Custom color list for regions. Default colors are used if not specified.
preselectCls	string	Put in the class that should be preselected when creating a new Box/Polygon etc.
imageTagList	Array<string>	Allowed tags for entire image.
imageClsList	Array<string>	Allowed classes for entire image.
enabledTools	Array<string>	Tools allowed to be used. e.g. "select", "create-point", "create-box", "create-polygon"	Everything.
showTags	boolean	Show tags and allow tags on regions.	true
selectedImage	string	URL of initially selected image.
images	Array<Image>	Array of images to load into annotator
showPointDistances	boolean	Show distances between points.	false
pointDistancePrecision	number	Precision on displayed points (e.g. 3 => 0.123)
onExit	MainLayoutState => any	Called when "Save" is called.
RegionEditLabel	Node	React Node overriding the form to update the region (see RegionLabel)
enabledRegionProps	boolean	Which properties to show in region edit popup ("class", "tags", "name", "comment")	[class, name]
hidePrev	boolean	Hide Previous Image button from the header bar.	false
hideNext	boolean	Hide Next Image button from the header bar.	false
hideClone	boolean	Hide Clone button from the header bar.	false
hideSettings	boolean	Hide Settings button from the header bar.	false
hideFullScreen	boolean	Hide FullScreen/Window button from the header bar.	false
hideSave	boolean	Hide Save button from the header bar.	false
userReducer	(state, action) => state	User defined reducer that receives every event triggered within the annotator. See demo site for example.

Developers

Development

To begin developing run the following commands in the cloned repo.

1. npm install
2. npm start

Then navigate to http://localhost:5173/ and start testing.

See more details in the contributing guidelines.

Icons

Consult these icon repositories:

• Material Icons
• Font Awesome Icons

Testdrive in project

To test this package in your project follow this quickstart:

1. Run npm link in the root directory of this project (where the package.json is located)
2. With the same Terminal window, go to your target project folder where the package.json is located
3. Run npm link "@starwit/react-image-annotate" to install the package. It might be necessary to remove a previously installed @starwit/react-image-annotate package. Please use the same node version when using npm link and executing the application.
4. Changes to this repository will apply live to the running dev session in your target project :)

Notes

Currently, there is an issue with vite-plugin-node-polyfills (0.15.0 at the time of writing), which shows many warnings while building (related to "use client"). That is expected and will probably be fixed in the future. See here: https://github.com/davidmyersdev/vite-plugin-node-polyfills/issues/49