Watermarking of digital image data
- Summary
- Lead Inventors: Shih-fu ChangMethod for providing digital image data with a watermark. The method for including a watermark in a digital image comprises of obtaining digital data of a transformed representation of the image. A transformed representation of the watermark for optimized visibility of the watermark in the image is determined. The transformed representation of the watermark is superposed on the transformed representation of the image.The watermark applied by this method is a visible or invisible pattern which is superposed on an image, and is not readily removable without leaving evidence of tampering.
- Detailed Technology Description
- Method for providing digital image data with a watermark. The method for including a watermark in a digital image comprises of obtaining digital data of a transformed representation of the image. A transformed representation of the watermark fo...
- *Abstract
-
None
- *Inquiry
- Calvin Chu Columbia Technology Ventures Tel: (212) 854-8444 Email: TechTransfer@columbia.edu
- *IR
- MS97/08/21
- *Principal Investigator
-
- *Web Links
- Patent number: WO9922480
- Country/Region
- USA
For more information, please click Here
