text_blind_watermark

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: https://www.guofei.site/pictures_for_blog/app/text_watermark/v1.html
中文 readme README_cn.md
Source code: https://github.com/guofei9987/text_blind_watermark

Can be used in

Wechat
dingding
zhihu.com
...

How to Use

install

>pip install text_blind_watermark

embed message into text:

from text_blind_watermark import TextBlindWatermarkThin

password = '20190808'
watermark = 'github.com/guofei9987'
text_blind_wm = TextBlindWatermarkThin(password=password)

wm = text_blind_wm.embed(watermark=watermark)
# This is example，you can put wm everywhere
text_embed = '这句话中有盲' + wm + '水印，你能提取出来吗？'
print(text_embed)

extract message from text

text_blind_wm_new = TextBlindWatermarkThin(password=password)
wm_extract = text_blind_wm_new.extract(text_embed)
print('提取内容：', wm_extract)

github.com/guofei9987

Method 2 is more robust

Alice Put her text watermark into a text:

from text_blind_watermark import TextBlindWatermark

watermark = "绝密：两点老地方见！"
text = "这句话中有盲水印，你能提取出来吗？" * 16
password = "20190808"

twm = TextBlindWatermark(password=password)
twm.read_wm(watermark=watermark)
twm.read_text(text=text)
text_embed = twm.embed()

print("打上盲水印之后:")
print(text_embed)

Then, you can paste this text to where you need.

Bob Extract the invisible watermark

from text_blind_watermark import TextBlindWatermark
password = "20190808"

twm_new = TextBlindWatermark(password=password)
wm_extract = twm_new.extract(text_embed)
print("解出的盲水印：")
print(wm_extract)

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