blind_watermark

# blind-watermark

Blind watermark based on DWT-DCT-SVD.


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- **Documentation:** [https://BlindWatermark.github.io/blind_watermark/#/en/](https://BlindWatermark.github.io/blind_watermark/#/en/)
- **文档：** [https://BlindWatermark.github.io/blind_watermark/#/zh/](https://BlindWatermark.github.io/blind_watermark/#/zh/)  
- **中文 readme** [README_cn.md](README_cn.md)
- **Source code:** [https://github.com/guofei9987/blind_watermark](https://github.com/guofei9987/blind_watermark)



# install
```bash
pip install blind-watermark
```

For the current developer version:
```bach
git clone git@github.com:guofei9987/blind_watermark.git
cd blind_watermark
pip install .
```

# How to use


## Use in bash


```bash
# embed watermark into image:
blind_watermark --embed --pwd 1234 examples/pic/ori_img.jpeg "watermark text" examples/output/embedded.png
# extract watermark from image:
blind_watermark --extract --pwd 1234 --wm_shape 111 examples/output/embedded.png
```



## Use in Python

Original Image + Watermark = Watermarked Image

![origin_image](docs/原图.jpeg) + '@guofei9987 开源万岁！' = ![打上水印的图](docs/打上水印的图.jpg)


See the [codes](/examples/example_str.py)

Embed watermark:
```python
from blind_watermark import WaterMark

bwm1 = WaterMark(password_img=1, password_wm=1)
bwm1.read_img('pic/ori_img.jpg')
wm = '@guofei9987 开源万岁！'
bwm1.read_wm(wm, mode='str')
bwm1.embed('output/embedded.png')
len_wm = len(bwm1.wm_bit)
print('Put down the length of wm_bit {len_wm}'.format(len_wm=len_wm))
```

Extract watermark:
```python
bwm1 = WaterMark(password_img=1, passw