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Description: Basic introduction to Human Visual System (HVS) Toolbox
func_LuminanceMasking -- Show luminance masking effect of HVS
func_ContrastMasking -- Show Contrast masking effect of HVS
func_ColorCSF -- Show Contrast Sensitive Function (CSF) via color Sinwave stimulus
func_GrayCSF -- Show Contrast Sensitive Function (CSF) via gray Sinwave stimulus
File Details
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Size: 3831 |
Author: 田卉 |
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Description: 空域可视水印算法（matlab实现）， 考虑了HVS特性，可见水印嵌入同时考虑了原图像和水印图像视觉特性。-airspace visual watermarking algorithm (Matlab achieved), in consideration of HVS features embedded watermark can be seen taking into account the original image and a watermark image visual characteristics.
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Size: 2048 |
Author: 杨柯 |
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Description: 由于考虑了HVS，本文算法较好地解决了水印透明性与算法鲁棒性之间的矛盾，使用该算法嵌入的水印具有较好的透明性-consideration of HVS, this algorithm can solve the watermark transparency and robustness to conflicts between the use of the embedded watermark algorithm has better transparency
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Size: 6019072 |
Author: 吕玉华 |
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Description: 数字水印的嵌入和检测，dct，
作者Mao Li
Purpose:an algorithm to achieve the embeding watermarking to a image by
dct bloking and hvs,then detect the watermarking by comparability.
-digital watermark embedding and detection, Copy, the writer Mao Li Purpose : an algorithm to achieve the embeding watermark ing to a image by Extra bloking and hvs. then detect the watermarking by comparability .
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Size: 1024 |
Author: awen |
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Description: 一种基于视觉模型的DCT数字水印算法
提出了一种水印系统与人眼视觉模型相结合的离散余弦变换数字水印算法。该算法利用了人眼视觉模型
(Hvs)来选取水印嵌入区域，使其既能够保证水印信息的鲁棒性又能够满足其不可见性。利用基于能量关系的算法进
行水印嵌入。最后进行了仿真实验，嵌入水印的图像中很难发现水印的痕迹，具有较高的清晰度。-based on the visual model DCT digital watermarking algorithm presents a watermarking system and the human visual model Guitar with the discrete cosine transform digital watermarking algorithm. The algorithm uses the human visual model (Hvs) to select embedding region, it is to ensure watermark robustness is not able to meet its visibility. Based on the energy use of the embedded watermark algorithm. Finally, the simulation experiments, the embedded watermark image watermark is difficult to find traces of high clarity.
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Size: 716800 |
Author: ghostsx |
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Description: 提出了一种离散小波变换域实现图像水印的方法。这种算法充分利用小波变换的特点,把原始图像及水印图像塔式分解,在多分辨率分解后的相同的频段来嵌入水印信息。该方法也利用了人眼视觉特性,算法简单而有效。实验证明,该算法较好地解决了水印不可见性与鲁棒性之间的矛盾,对常见的水印攻击都有较强的鲁棒性。-presents a discrete wavelet transform domain image watermarking method. This algorithm using wavelet transform characteristics, the original image and the watermark image tower decomposition, Multiresolution decomposition in the same frequency band to the embedded watermark. The method has also been used HVS, the algorithm is simple and effective. Experiments show that the algorithm can solve the watermark is visible with the robust nature of, common to have more attacks watermark robustness.
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Size: 151552 |
Author: yy |
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Description: 提出一种基于视觉特性的图像摘要算法，增大人眼敏感的频域系数在计算图像Hash时的权重，使得图像Hash更好地体现视觉特征，并提高鲁棒性。将原始图像的分块DCT系数乘以若干由密钥控制生成的伪随机矩阵，再对计算的结果进行基于分块的Watson人眼视觉特性处理，最后进行量化判决产生固定长度的图像Hash序列。本算法比未采用视觉特性的算法相比，提高了对JPEG压缩和高斯滤波的鲁棒性。图像摘要序列由密钥控制生成，具有安全性。-Based on the visual characteristics of the image digest algorithm, increasing the human eye-sensitive frequency-domain coefficients in the calculation of the image when the weight of Hash, Hash makes images better reflect the visual characteristics, and improve robustness. Will block the original image multiplied by the number of DCT coefficients generated by the key control of pseudo-random matrix, then the results of calculation based on the sub-block of Watson HVS treatment, and finally quantify the judgments arising from fixed-length sequence of images Hash . Than the algorithm did not use the visual characteristics of the algorithm, improve the JPEG compression and Gaussian filtering robustness. Abstract image sequence generated by the key control, with security.
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Size: 167936 |
Author: kurt |
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Description: Basic introduction to Human Visual System (HVS) Toolbox func_LuminanceMasking -- Show luminance masking effect of HVSfunc_ContrastMasking -- Show Contrast masking effect of HVSfunc_ColorCSF -- Show Contrast Sensitive Function (CSF) via color Sinwave stimulusfunc_GrayCSF -- Show Contrast Sensitive Function (CSF) via gray Sinwave stimulus File Details -Basic introduction to Human Visual System (HVS) Toolbox func_LuminanceMasking Show luminance masking effect of HVSfunc_ContrastMasking Show Contrast masking effect of HVSfunc_ColorCSF Show Contrast Sensitive Function (CSF) via color Sinwave stimulusfunc_GrayCSF Show Contrast Sensitive Function (CSF) via gray Sinwave stimulus File Details
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Size: 3072 |
Author: 田卉 |
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Description: 基于小波变换和HVS的图像数字水印的研究-Based on Wavelet Transform and HVS image digital watermarking research
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Size: 322560 |
Author: jl |
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Description: 人类视觉系统的matlab工具箱，包括亮度掩膜，对比度掩膜和对比度灵敏度函数的实现。是学习人类视觉系统非常好的入门材料。
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Size: 3072 |
Author: 袁红星 |
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Description: 文中提出了一种基于离散小波变换和混沌加密的数字水印新算法,采用二维混沌变换对水印图像加密 对载体图像进行多分辨离散小波变换,应用小波系数判断载体图像的纹理复杂程度后,依据人眼的视觉系统(HVS)特性,将水印信号嵌入到图像的低频部分,对图像的不
同分解层分别选取不同的纹理阈值和水印嵌入强度,将数字水印嵌入到相同分辨层的原始图像中,提高了水印算法的鲁棒性。在检测和提取水印时,通过水印相似度(NC)和峰值信噪比( PNSR)评价水印质量,实验结果表明提出的算法可以抵抗剪裁、JPEG压缩、滤波等几何攻击,算法简单,计算复杂度小,兼顾了水印的不可见性和鲁棒性。-err
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Size: 440320 |
Author: 王娜 |
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Description: 执行一维和二维小波变换在MATLAB环境中。十几包括的小波函数有：
* Haar
* Daubechies 1-6
* Symlets 1-6
* Coiflets 1 and 2
* Splines and reverse splines
* CDF 9/7 and Le Gall 5/3
* S+P wavelets (2,2), (4,2), (4,4), (6,2), and (2+2,2)
* Two Ten "TT"
* Low-complexity design
* HVS design Visual 9/3
-Description Perform 1D and 2D wavelet transforms in MATLAB. WAVELET(W,L,X) computes the L-stage discrete wavelet transform (DWT) of signal X using wavelet W. For the inverse transform, WAVELET(W,-L,X) inverts L stages. Included wavelets are
* Haar
* Daubechies 1-6
* Symlets 1-6
* Coiflets 1 and 2
* Splines and reverse splines
* CDF 9/7 and Le Gall 5/3
* S+P wavelets (2,2), (4,2), (4,4), (6,2), and (2+2,2)
* Two Ten "TT"
* Low-complexity design
* HVS design Visual 9/3
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Size: 10240 |
Author: chen huayi |
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Description: 结合离散小波变换(DWT)技术，利用DWT与HVS相结合的良好特性，探索和建立了一种新的图像质量客观评价方法-taking advantage of the similarities of discrete wavelet transform (DWT) with HVS，a new methods for integrated image quality assessment
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Size: 200704 |
Author: 朱建伟 |
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Description: 几种著名的人类视觉模型，包括Chou and Li s JND Model，DCTune Andrew B.Watson.，Jnd Model by X.H.Zhang。在图像识别等相关领域有广泛的应用。-several classical human visual models including Chou and Li s JND Model，DCTune Andrew B.Watson.，Jnd Model by X.H.Zhang
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Size: 7168 |
Author: zhu xs |
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Description: 采用HVS的图像相似度准则计算WPSNR -The use of HVS image similarity criteria WPSNR
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Size: 2048 |
Author: zk |
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Description: 计算HVS工具箱，包括人类视觉系统计算中的纹理，亮度，边缘等-HVS Toolbox
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Size: 3072 |
Author: wingor2009 |
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Description: 一种基于小波域灰度图像盲水印的新方法，
方案中利用了人类视觉系统（HVS）特征。-A new approach for non-blind watermarking of still
gray level images in the wavelet domain.The method uses
the Human Visual System(HVS)characteristic
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Size: 246784 |
Author: 丫丫 |
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Description: lossless_watermark_using_HVS使用HVS的无损水印算法-lossless_watermark_using_HVS Lossless watermarking algorithm using the HVS
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Size: 3072 |
Author: 陈小潘 |
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Description: HVS based image quality metric
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Size: 3072 |
Author: anathoo |
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Description: Data hiding in the still image presets a variety of challenges that arises due to the way human visual system (HVS) works and the typical modifications that image undergoes. Additionally, still images priced a relatively small host signal in which to hide data. A fairly typical 8-bit picture of 200*200 pixels provides approximately 40 KB of data space in which to work. This is equivalent to around 5 seconds of telephone-quality audio or less than a single frame NTSC television.
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Size: 199680 |
Author: rupesh |
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