Hình mờ

Embed This Widget

Theme


      
    


    
    

      Widget powered by
      .
      Free, no account required.
    

  







  
  
  

    Còn được gọi là:
    
    digital watermark
    
    QR watermark
    
  

  

  
  
Embedding invisible identification data into QR code module patterns without affecting scannability. Digital watermarks can track the origin of printed QR codes to detect counterfeiting or unauthorised reproduction.


  



  

  
  
  
  

  
  
  
  

    
Thuật ngữ liên quan

    

      
      Custom QR Code
      
      Cryptographic Signature
      
    

  

  
  

  
  
  

    
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…: Detectable by cameras but invisible to human vision Watermarking : QR data embedded in images or textures without visible…