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Fast & tiny Wolt BlurHash decoder implementation

Home Page: https://mad-gooze.github.io/fast-blurhash/

License: ISC License

JavaScript 100.00%

blurhash placeholder image fast tiny

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fast-blurhash's Issues

Export function to get average color

It would be nice to get the average color as an RGB value, to use during SSR.

I presume it would get tree-shaken out when it's not used on the client.

Right now I have this:

const digit =
  '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz#$%*+,-.:;=?@[]^_{|}~';
const decode83 = (str, start, end) => {
  let value = 0;
  while (start < end) {
    value *= 83;
    value += digit.indexOf(str[start++]);
  }
  return value;
};
const calcAverageRGB = (blurHash) => {
  let value = decode83(blurHash, 2, 6);
  const r = value >> 16;
  const g = (value >> 8) & 255;
  const b = value & 255;
  return `rgb(${r},${g},${b})`;
};

Is that correct? Is there a better way?

Add LICENSE

For Git forges to display license information and casual readers to find easily, please add the ISC license in a ./LICENSE file. Currently one has to know they need to read the package.json to find the license.

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