Data Extraction Method from Printed Images with Different Formats
Mitsuji Muneyasu, Nayuta Jinda, Yuuya Moritani, Soh Yoshida · IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences · 2017
In this paper, we propose a method of embedding and detecting data in printed images with several formats, such as different resolutions and numbers of blocks, using the camera of a tablet device. To specify the resolution of an image and the number of blocks, invisible markers that are embedded in the amplitude domain of the discrete Fourier transform of the target image are used. The proposed method can increase the variety of images suitable for data embedding.