SYSTEM AND METHOD FOR EMBEDDING AND EXTRACTING DIGITAL WATERMARK USING QR CODE

摘要

The present invention relates to a system and method for embedding and extracting a digital watermark using a QR code. The system of the present invention comprises: an input unit for receiving original data; a pixel extraction unit for extracting a pixel from the original data received from the input unit and displaying, in a binary system, a color value that each pixel has; a watermark generation unit for collecting information related to the original data to generate a watermark in a QR code form; a binarization allocating unit for binarizing the watermark generated by the watermark generation unit; and a watermark embedding unit for XOR-operating a bit of an original data pixel extracted by the pixel extraction unit and a bit of the watermark binarized by the binarization allocating unit. Accordingly, data of an image, audio, video, etc. in various forms is embedded to the original data in a large amount, and the degree as much as the watermark is visually confirmed, can be easily controlled.;COPYRIGHT KIPO 2016