Patent ID: 6678389
Filing Date: 2004-01-13
Classification: G06T,H04N

Abstract:
A method of embedding digital information in digital multimedia data, wherein said method includes the following steps:generating one or more transforms from the digital multimedia data or a portion of the digital multimedia data, wherein said transforms are dependent on the digital multimedia data or the portion of the digital multimedia data; generating transformed digital multimedia data by applying the one or more transforms to the digital multimedia data or the portion of the digital multimedia data; embedding the digital information in the transformed digital multimedia data; and generating the digital multimedia data embedded with the digital information by applying one or more inverse transforms of the one or more transforms to the embedded transformed digital multimedia data; wherein said digital multimedia data is an image and said one or more transforms are Karhunen-Loeve transforms and said digital information is embedded in the first Li coefficients of the transformed digital multimedia data, where the number Li is determined in accordance with HVS analysis.