pixel-data

Encodes/decodes text from/to pixels.

Every pixel is composed of 4 channels:

• red
• green
• blue
• alpha

Every channel contains an int from 0 to 255.

Meaning we can easily save 1 char per channel / 4 chars per pixel 😎

CLI install

npm i --global pixel-data

CLI usage

Encode

• Text: pixel-data encode --text [text] --output [file.png]
• Text file: pixel-data encode --file [file.txt] [--output [file.png]]
  • --output defaults to [file.txt].png

Decode

pixel-data decode [file.png] [--output [file.txt]]

Note: --output defaults to [file.png].txt.

Use it without installing

pixel-data encode --text [text] --output [file.png]

or

npx pixel-data decode [file.png] [--output [file.txt]]