@mizuka/web-digital-watermarking (npm): <h1 align="center">   <br>   <a href="https://www.mizuka.top/web-digital-watermarking/index.html"><img src="https://www.w3cschool.cn/attachments/image/20170811/1502432091659574.jpg" alt="opencv" width="200"></a>   <br>   频域水印在线版   <br> </h1>
Keywords: frequency domain|watermark|web|digital watermarking|Blind watermark|digital-watermarking|webapp