hidden_watermark

• Documentation: https://docs.rs/hidden_watermark
• Source code: https://github.com/guofei9987/hidden_watermark

Hidden Watermark in Rust

• Hidden Watermark in Text
• Hidden Watermark in Image (png/jpg/...)

Put message(blind watermark) into a text. so that the message is invisible, and the changes of the text are not perceptible.

• Video demo：https://www.bilibili.com/video/BV1m3411s7kT
• Online demo(from old version, for demo only): https://www.guofei.site/pictures_for_blog/app/text_watermark/v1.html
• Python version: https://github.com/guofei9987/text_blind_watermark
• Source code: https://github.com/guofei9987/hidden_watermark_rs
• crates.io: https://crates.io/crates/hidden_watermark_rs

How to Use

Cargo.toml

[dependencies]
hidden_watermark = "*"

Text Hidden Watermark

Can be used in

• Wechat
• dingding
• zhihu.com
• ...

use hidden_watermark::TextBlindWM;
use std::fs;
#[test]
fn example_text_hidden_watermark() {
    let pwd = "This is password".as_bytes();
    let wm = "This is a hidden message".as_bytes();
    let ori_filename = "./files/file.txt";
    let file_with_wm = "./files/outputs/file_with_wm.txt";


    let text_blind_watermark = TextBlindWM::new(pwd);

    let text = fs::read_to_string(ori_filename).unwrap();

    // embed
    let text_with_wm = text_blind_watermark.add_wm_rnd(text.as_str(), wm);
    // write into file
    fs::write(file_with_wm, text_with_wm).unwrap();
    println!("text with watermark saved in file <{}>", file_with_wm);

    // read text and extract the watermark
    let text_with_wm = fs::read_to_string(file_with_wm).unwrap();

    // extract
    let wm_extract = text_blind_watermark.extract(text_with_wm.as_str());

    println!("watermark extracted：{}", String::from_utf8_lossy(wm_extract.as_slice()))
}

It does not display well in IDE. Use other text editor or text viewer.

Related Project

HideInfo：https://github.com/guofei9987/HideInfo

Python version: https://github.com/guofei9987/text_blind_watermark