Page watermark tamper-proofing method and system

The invention discloses a page watermark tamper-proofing method and a page watermark tamper-proofing system. The method comprises the steps: detecting the content of a watermark and/or the state of the watermark in a visual field; and when the content of the watermark is changed and/or the state of...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHANG LEI, LI YANG, YIN WEILAN, CHEN YUTONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS
Online-Zugang:	Volltext bestellen
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