Combining Digital Watermarks with Two—Color Bitmap Image-中国期刊网

摘要 Atechnologyforcombiningdigitalwatermarkswithtwo-colorbitmapimageonthethresholdwatermarkingmethodispresented.Ourtechnologydoesn'taddanythingtothedigitalmedia,butcombinesthewatermarksintwo-colorbitmapimagebylookingforsomecharacteristicvaluesinthebitmapandusestherelationshipbetweenthewatermarksandthecharacteristicvaluestoprovethecopyrightprotection.Thechoiceofthecharacteristicvaluesdependsonthechoiceofacryptographickeyknownbytheownerofthebitmap.Thebenefitofusingacryptographickeyistocomginethewatermarkswiththebitmapinahighsecureway.

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Combining Digital Watermarks with Two—Color Bitmap Image

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Combining Digital Watermarks with Two—Color Bitmap Image

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