Description: 该程序用于实现h.264中的DCT变换、量化、反DCT变换、反量化 采用了h.264白皮书中介绍的算法-the procedures used to achieve h.264 of DCT, quantization, anti- DCT, quantization using the anti-h.264 White Paper introduced by the algorithm Platform: |
Size: 10240 |
Author:王全明 |
Hits:
Description: 直接减压到matlab\work目录下就可以看到运行结果了，其中包括了位平面分解，量化嵌入（提取），图像的金字塔分解等的程序块。-decompression directly to the Matlab \ work on the directory can see the results, which included a bit plane decomposition, quantification embedded (extraction), the image of the pyramid decomposition of the block. Platform: |
Size: 332800 |
Author:yj |
Hits:
Description: 是关于视频数字水印的一个程序，可以实行视频数字水印的嵌入和检测。-on video digital watermarking a procedure that allows the video digital watermark embedding and testing. Platform: |
Size: 129024 |
Author:小徐 |
Hits:
Description: 基于H.264标准的数字视频鲁棒水印，IEEE检索下载文献，2007年最新会议文章，很有参考价值。-H.264 standards-based robust watermarking of digital video, IEEE retrieval download documents, the latest meeting in 2007 article, it is reference value. Platform: |
Size: 1573888 |
Author:james |
Hits:
Description: Fragile Watermarking for H.264 Video Stream Authentication.pdf一篇关于H.264水印的文章。-Fragile Watermarking for H.264 Video Stream Authentication.pdf a watermark on the H.264 articles. Platform: |
Size: 281600 |
Author:zhou da |
Hits:
Description: 本文提出一种基于H．264低比特率视频流的半脆弱盲水印方法，通过在H．264特有的的帧内预
测和运动向量预测中分别嵌入鲁棒水印和脆弱水印，达到版权保护和内容完整性认证的双重目的．通过在嵌入强
度和预测模式选择的拉格朗日乘子中引入H．264量化因子，增强了水印对重量化编码的抵抗力，取得更好的率
失真平衡，减小水印嵌入对视频流比特率的影响．该算法可以实现水印的快速嵌入提取，满足视频实时处理的要
求，实验结果证明了该算法的有效性．-A novel semi—fragile blind watermark algorithm based on H．264 low bit—rate video stream was pro—
posed in this paper，copyright protection and content authentication Can be achieved jointly by embedding the robust waterraark
an d fragile watermark spectively during the process of interior prediction an d motion vector prediction which are
characteristic for H．264 standard．Through introducing the quan tization factor of H．264 in the embedding and prediction
mod e choice，the proposed scheme Can strengthen the watermarking resistance to video recoding and strike a good rate—
distortion balan ce for the waterm ark of lower bit—rate video st／ ea／n．which relieve bit—rates lossness from the waterm arking
embedding．Experimental results also demonstrate that this scheme iS very computational efi cient during watermark—
ing embedding an d extraction． Platform: |
Size: 384000 |
Author:阿国 |
Hits:
Description: Abstract- H.264/AVC is becoming a popular video codec for
its better compression ratio, lower distortion and applicability
to portable electronic devices. Thus, issues of copyright
protection appropriate for this standard become very
important. In this paper, a new blind SVD (Singular Value
Decomposition) - DCT combined video watermarking scheme
for the ".264 standard is proposed. The proposed method is a
blind watermarking algorithm as the hidden information can be
extracted without the original video and the original singular
values. To reduce visual quality degradation caused by
coefficients modifying, the perceptual model and block selection
mechanism are introduced to control the modification strength.
The performance of the proposed algorithm is evaluated with
respect to imperceptibility, robustness and data payload.
Experimental results reveal that the proposed scheme achieves
enough robustness while preserving the perceptual quality.-Abstract- H.264/AVC is becoming a popular video codec for
its better compression ratio, lower distortion and applicability
to portable electronic devices. Thus, issues of copyright
protection appropriate for this standard become very
important. In this paper, a new blind SVD (Singular Value
Decomposition)- DCT combined video watermarking scheme
for the ".264 standard is proposed. The proposed method is a
blind watermarking algorithm as the hidden information can be
extracted without the original video and the original singular
values. To reduce visual quality degradation caused by
coefficients modifying, the perceptual model and block selection
mechanism are introduced to control the modification strength.
The performance of the proposed algorithm is evaluated with
respect to imperceptibility, robustness and data payload.
Experimental results reveal that the proposed scheme achieves
enough robustness while preserving the perceptual quality. Platform: |
Size: 486400 |
Author:lie |
Hits:
Description: A robust video watermarking scheme of the
state-of-the-art video coding standard H.264/AVC is proposed
in this brief. 2-D 8-bit watermarks such as detailed company
trademarks or logos can be used as inconvertible watermark for
copyright protection. Platform: |
Size: 1573888 |
Author:maj |
Hits:
Search - watermarking h.264