https://github.com/eronana/indexed-png

A PNG encoder to create indexed PNG images
https://github.com/eronana/indexed-png

Last synced: 10 days ago
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A PNG encoder to create indexed PNG images

• Host: GitHub
• URL: https://github.com/eronana/indexed-png
• Owner: Eronana
• Created: 2022-08-01T08:00:03.000Z (over 2 years ago)
• Default Branch: master
• Last Pushed: 2022-09-02T09:13:36.000Z (about 2 years ago)
• Last Synced: 2024-10-20T14:28:38.168Z (18 days ago)
• Language: TypeScript
• Size: 10.7 KB
• Stars: 5
• Watchers: 1
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
# indexed-png

A PNG encoder to create indexed PNG images

## Usage

```ts

import fs = require('fs');

import { createPNG } from 'indexed-png';

const palette = [];

for (let r = 0; r < 6; r++) {

  for (let g = 0; g < 6; g++) {

    for (let b = 0; b < 6; b++) {

      palette.push((r * 0x33) | ((g * 0x33) << 8) | ((b * 0x33) << 16));

    }

  }

}

(async () => {

  const width = 36;

  const height = 6

  const data = Buffer.from(Array(width * height).fill(0).map((_, i) => i % (6 * 6 * 6)));

  fs.writeFileSync('test.png', (await createPNG(data, palette, width, height)));

})();

```