Lee & Hayes, PLLC
Input complexity adaptive quantization watermarking
Systems and methods are described that apply a watermark to data, such as data representing an image. In one implementation, the complexity of the image is measured. A quantization step size is calculated, based in part on the measured complexity of the image. A watermark or message is embedded into the image using the quantization step sizes derived for each coefficient of interest. In a further implementation, a mark decoding system is configured to extract the embedded message from the image data.
Microsoft Corporation
G G
G06T G06T
additional inventional
Yuqun M. Kivanc Mariusz
Chen Mihcak Jakubowski