Review Article
A Comparative Analysis of Information Hiding Techniques for Copyright Protection of Text Documents
Table 7
Binary classification model in [
15].
| | Character name | Two-bit classification | The character written symbol | Character Unicode code |
| | Zero-width space | 00 | No symbol and width | U+200B | | Zero-width joiner | 01 | No symbol and width | U+200C | | Zero-width nonjoiner | 10 | No symbol and width | U+200D | | Mongolian-vowel separator | 11 | No symbol and width | U+180 | | LRE or RLE | End of the watermark message | No symbol and width | U+200A or U+200B |
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