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fast-average-color

v9.4.0

Published

a year ago

A simple library that calculates the average color of images, videos and canvas in browser environment.

Downloads

330,808

0High
0Medium
0Low

fast average color colour

Fast Average Color

Coveralls

A simple library that calculates average or dominant color of any images or videos in browser environment.

Features

Bet on speed
Some algorithms: simple, sqrt (default) and dominant
Small bundle size, tree shaking
Average color can be obtained from:
- image
- string (url of image or base64)
- video
- canvas or OffscreenCanvas
- ImageBitmap
- array of numbers, Uint8Array or Uint8ClampedArray
Average color can be obtained from specific part of resource
Support for transparency (PNG, SVG and other formats)
Support for web workers
Support for Node.js

Table of contents

Unhandled Rejection (SecurityError): The operation is insecure.

The crossOrigin attribute allows images that are loaded from external origins to be used in canvas like the one they were being loaded from the current origin. Using images without CORS approval taints the canvas. Once a canvas has been tainted, you can no longer pull data back out of the canvas. By loading the canvas from cross origin domain, you are tainting the canvas.

You can prevent this by setting crossorigin="anonymous".

More examples

License

MIT License

Links