Embedding and Extraction of Digital Watermark Based on DCT

Hong Yu Wu; Yao Hui Li

doi:10.4028/www.scientific.net/AMM.321-324.1150

Paper Titles

Movie Audio Retrieval Based on HCT
p.1129

An Improved Color Image Enhancement Algorithm Based on 3-D Color Histogram Equalization
p.1133

Research on Physical MPPT of Photovoltaic Array System Based on Image Processing
p.1138

Track Surface Image Collecting System Base on Area-Array Camera
p.1145

Embedding and Extraction of Digital Watermark Based on DCT
p.1150

Sparse Representation Based on Principal Component for Compressed Sensing Hyperspectral Images
p.1154

Research on the Photovoltaic Maximum Power Point Tracking Technology
p.1158

Development of the Handwritten Numeral Recognition Based on Neural Network via Kinet Sensor
p.1162

Damage Assessment of the Attacked Airports Based on Image Analysis
p.1168

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 321-324Embedding and Extraction of Digital Watermark...

Embedding and Extraction of Digital Watermark Based on DCT

Abstract:

We propose a DCT domain watermarking algorithm, this algorithm transforms the watermark image before the watermark embedding and embeds watermark images by key vector, which improves the robustness and security greatly. The experiments indicate that the program has a better robustness on Gaussian filtering, white noise, image shearing, so digital watermark technology is useful.