数字水印硬件处理的研究

Study on the hardware for digital watermarking

目前,采用软件处理的数字水印技术被广泛应用于各类知识产权的保护中,若该技术采用硬件实现在速度方面将会得到更大的提升.提出了一种利用可编程逻辑器件FPGA对数字图像进行水印处理的硬件系统.该硬件系统可实现二维离散余弦变换(DCT2)和二维离散余弦变换(IDCT2).

Watermarking which was processed by software is now applied in every aspects of property rights,however,the technology was processed by hardware can increase the speed of computation.A hardware system which was used to process watermarking in digital images with FPGA was proposed,the system can embed the watermarking into special images with 2-Dimension Discrete Cosine Transformation(DCT2)and recover the image with Inverse 2-Dimension Cosine transformation(IDCT2)by programming logic circuits.