Description: this code first reads an image and decomposed it in discrete wavelet transformation.hl1 and hl2 are extracted to embed watermark. watermark is added to hl1 and lh1 and inverse dwt is applied. Platform: |
Size: 2048 |
Author:srinivas |
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Description: 实现基于小波变换数字水印的嵌入和提取,并实现对压缩，噪声等攻击的检测。-Using the same key after a chaotic sequence of scrambling the watermark information to achieve the double encryption, consider the wavelet energy distribution problem, the watermark information embedded in low-frequency coefficients to ensure the reliability of watermark information. Extracted using image restoration method to achieve blind detection. Platform: |
Size: 868352 |
Author:飞无影 |
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Description: The code implements the following paper:
Guorong Xuan, Jiang Zhu, Jidong Chen, Shi Y.Q., Zhicheng Ni, Wei Su, "Distortionless data hiding based on integer wavelet transform" IET Electronics Letters, Volume: 38, Issue 25, page 1646- 1648, December 2002. (ISSN: 0013-5194)
The watermark embedding and extraction modules have been implemented separately.
The watermark embedding module embeds the watermark using bitplane compression in the integer wavelet transform domain.
The watermark extraction module extracts the previously embedded watermark and restores the original image.
A logo image is used as a watermark but can be replaced with any thing.-The code implements the following paper:
Guorong Xuan, Jiang Zhu, Jidong Chen, Shi Y.Q., Zhicheng Ni, Wei Su, "Distortionless data hiding based on integer wavelet transform" IET Electronics Letters, Volume: 38, Issue 25, page 1646- 1648, December 2002. (ISSN: 0013-5194)
The watermark embedding and extraction modules have been implemented separately.
The watermark embedding module embeds the watermark using bitplane compression in the integer wavelet transform domain.
The watermark extraction module extracts the previously embedded watermark and restores the original image.
A logo image is used as a watermark but can be replaced with any thing. Platform: |
Size: 1015808 |
Author:thinkingbig4 |
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Description: This a watermark soucecode based on Spacial Domain Algorithm implemented by using Delphi7.0. The main idea is to embed the binary watermark into th
- transparent digital watermarking and digital watermarking Wavelet the note. Pictures were revised according to their needs-This is a watermark soucecode based on Spacial Domain Algorithm implemented by using Delphi7.0. The main idea is to embed the binary watermark into th
- transparent digital watermarking and digital watermarking Wavelet the note. Pictures were revised according to their needs Platform: |
Size: 380928 |
Author:lapad |
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Description: 基于人眼视觉模型的双正交小波变换算法，通过实验验证,该算法在对嵌入水印后的图像进行有损压缩、剪切、污染、添加各种噪声等处理后,提取出的水印仍表现出了较好的鲁棒性。-Human visual model based on biorthogonal wavelet transform algorithm, experiments show that the algorithm of the watermarked image lossy compression, shear, pollution, after adding all kinds of noise, the performance of the extracted watermark is still a good robustness. Platform: |
Size: 352256 |
Author:rhyme |
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Description: 基于小波变换的扩频图象数字水印，将水印嵌入到小波中。以保证信息的安全-Spread spectrum based on wavelet transform image watermarking, the watermark is embedded into the wavelet. To ensure information security Platform: |
Size: 1024 |
Author:lina |
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Description: 对256*256的图进行二维小波分解，找出中频带64*64CH2嵌入水印，-256* 256 for a two-dimensional wavelet decomposition of the graph, find the band 64* 64CH2 embedded watermark, Platform: |
Size: 2048 |
Author:liuning |
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Description: 提出一种基于小波变换与分形编码技 术 相 结 合 的 矢 量 地 图 零 水 印 模 型 通 过 小 波 变
换获得地图的低频系数块 利用分形相似计算获得与该低频系数块匹配的图像子块 将图像子
块通过拼贴生成零水印并提交第三方版权认证机构备案-Proposed based on wavelet transform and fractal coding technology in the rise of a close and operation of map zero water seal of the small wave model change
Change the map for low-frequency coefficients piece of fractal similar to gain and the low frequency coefficients calculated block matching image sub-block son images
Piece of through the collage generation zero watermark and submit third-party authentication institutions copyright record Platform: |
Size: 202752 |
Author:刘立京 |
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Description: 在小波域中，以图像作为水印信息，嵌入以声音为载体信号的源程序。-n wavelet domain to image as a watermark, embedded with sound as the carrier signal source program.
Platform: |
Size: 1024 |
Author:duanmin |
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Search - wavelet watermark