Method for watermarking an electronically depicted image and detecting unauthorized image alterations
- 總結
- Shih- Fu Chang, Ph.D.
- 技術優勢
- Method is secure and not vulnerable to attackSmall error rate for image generation Robust system flexible to accommodate modest degree of image manipulation while maintaining low tolerance for large image alterationsPatent information:Patent Pending (WO/2003/003285)Tech Ventures Reference: IR M02-013
- 技術應用
- System for image watermarkingMethod for watermark forgery identificationElectronic signature generation
- 詳細技術說明
- Shih- Fu Chang, Ph.D.
- *Abstract
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None
- *Inquiry
- Satish RaoColumbia Technology VenturesTel: (212) 854-8444Email: TechTransfer@columbia.edu
- *IR
- M02-013
- *Principal Investigation
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- *Publications
- Lin, C. Y., Chang, S. F. "Semi-Fragile Watermarking for Authenticating JPEG Visual Content." Proc. SPIE, Security and Watermarkering of Multimedia Contents. Jan 2000 140-151.
- *Web Links
- WIPO: WO03003276USPTO_1: US 2005-0129268 A1USPTO_2: US 2005-0123167 A1
- 國家/地區
- 美國
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