Transparent Digital Watermark on Drug's Images

The pharmaceutical system research and development foundation has an intention to identify the ownership of the pictures of drugs which are going to be shown on YaAndYou.net website by inserting digital watermark which does not affect the quality of pictures. If the picture is modified, the research team can verify its originality. To add a digital watermark on pictures of drugs is to create the transparent digital watermark by using Alpha Channels and Alpha Blending techniques. The permanent watermark on the pictures of drugs will support users who need to consider the drug pictures which are not garbled and able to verify the ownership of the pictures from the website, Yaandyou.net. The research team has developed the program for creating digital watermark from an open source tool and tested with 265 pictures of drugs. The experimental results show digital watermark in the form which is embedded in the drug photos, taken by staffs of Yaandyou.net. The presence of digital watermark does not reduce the quality of the photos, and the pictures can be proven that they are originated from Yaandyou.net with 100% accuracy of correctness via image editing program and 80.50% via template matching method of OpenCV program.