convert pdf/djvu -> .cb (customized book)
CB is a simple WYSIWYG image based format for e-books
| Offset | Size (bytes) | Description |
|---|---|---|
| 0x00 | 3 | 'CB' Signature |
| 0x03 | 1 | Format type |
| 0x04 | 4 | Pages qty |
| 0x08 | 2 | Width |
| 0x0A | 2 | Height |
| 0x0C | variable. Pages x Width x Height / 8 | Monochrome pages image data |
You can read CB book using ArduinoBook (https://github.com/fel88/ArduinoBook)
Dithering code from here: https://github.com/cyotek/Dithering