การพัฒนาคิวอาร์โค้ดร่วมกับลายน้ำดิจิตอลเพื่อซ่อนข้อมูล / สุพพัต รุ่งเรืองศิลป์ = Development of QR Code with watermark for hiding data / Suppat Rungraungsilp
In this thesis we proposed embedding and extracting a watermark on QR Code based on Discrete Cosine Transform, Discrete Fourier Transform and Discrete Wavelet Transform that preserve an information hiding text on QR Code. The experimental results shown which one is the best extracting, use the least time in embedding a watermark and use the least time in extracting a watermark. For each transform we obtained advantages and disadvantages by embedding and extracting a watermark through a standard encode and decode QR Code method.
