Watermarking Algorithm via Visual Model and IntegerDiscrete Cosine Transform
Shu Shi · Jisuanji yingyong yanjiu · 2004
Based on visual model,integer DCT(Discrete Cosine Transform) and Hash functions,an novel watermarking technique is proposed.Complexity is reduced and image quality is improved compare with the existed DCT methods due to the introduction of integer DCT.Moreover,visual model results in raise of resistant for JPEG compression and other image processing.New watermarking technique is high security.