基于分块DCT的自适应扩频水印算法 关键词 ：分块DCT；扩频；HVS [gap=960]Keywords: block-DCT ; spread spectrum ; Human Visual System
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Block DCT 分块离散余弦变换 ; 分块dct
block-DCT transform 块DCT变换
hardware of block DCT 方块DCT硬件结构
DCT block DCT块
block-based dct 分块dct
At the same time, an adaptive algorithm based on block DCT for digital watermarking are advanced.
论文首先对信息隐藏的相关理论加以阐述,在此基础上,介绍数字水印技术的典型算法,提出一种自适应的基于分块DCT的数字水印算法。
参考来源 - 数字水印技术在图像版权保护中的应用研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Block-DCT-based video compression scheme has been used widely in digital video system.
基于分块dct的视频压缩方法在数字视频系统中得到了广泛的应用。
It can reduce the block noise exist in the traditional DCT watermarking algorithm and improve the quality of the image.
通过空间交迭的方法，该算法能够削弱传统DCT自适应水印算法的块状噪声，从而提高图像的品质。
According to the characteristics of integer discrete cosine transformation(DCT) and quantization, the coefficient-all-zero block was determined in advance to terminate meaningless search.
根据整数DCT变换和量化的特性，通过提前判定全零系数块来终止没有意义的运动搜索过程。
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