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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: 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: 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: 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: Matlab source code for DCT-based watermarking for grayscale images. DCT-based watermark recovering without resorting to the uncorrupted original image. Digital watermarking has been proposed as a viable solution to the need of copyright protection and authentication of multimedia data in a networked environment, since it makes possible to identify the author, owner, distributor or authorized consumer of a document.
A new watermarking technique to add a code to digital images is presented: the method operates in the frequency domain embedding a pseudo-random sequence of real numbers in a selected set of DCT coefficients. Watermark casting is performed by exploiting the masking characteristics of the Human Visual System, to ensure watermark invisibility. The embedded sequence is extracted without resorting to the original image, so that the proposed technique represents a major improvement to methods relying on the comparison between the watermarked and original images.
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Size: 98304 |
Author: omar |
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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: HVS based image quality metric
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Size: 3072 |
Author: anathoo |
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Description: 基于人类视觉系统HVS的小波域数字图像水印
包含：嵌入、提取、分解、重构等-Based on human visual system HVS digital image watermarking in wavelet domain include: embedding, extraction, decomposition, reconstruction, etc.
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Size: 2048 |
Author: 杜小三 |
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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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Description: 基于人眼系统的(hvs)图像质量评估算法-NO reference image quality assessment
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Size: 1024 |
Author: liu dl |
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Description: 基于结构信息提取的图像质量评价构相似性理论是一种关于图像质量评价的新思想．与自底向上地模拟人眼视觉系统(HVS)低阶的组
成结构不同，结构相似性理论自顶向下地模拟HVS的整体功能．-Theory is a kind of image quality evaluation about the new thoughts. And the simulation of human visual system (HVS) low-level group
Into different structure, the structural similarity theory from the top down to simulate the function of the HVS.
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Size: 416768 |
Author: 抓党建 |
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Description: Zhou Wang proposed a new idea of Structural Similarity Index (SSIM )for image quality measurement based on the assumption that the HVS is highly adapted to extract structural information from the viewing field. The Mean Structural Similarity Index (MSSIM) contains three parts: Luminance Comparison l(x, y), Contrast Comparison c(x, y) and Structure Comparison s(x, y).
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Size: 2048 |
Author: ahmed seghir |
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Description: 该文提出了一种新的静态图像水印技术,它基于人眼视觉系统模型,利用了
图像的多尺度融合技术,可将任意的图像水印添加到载体图像中-This paper presents a new static image watermarking technology, which is based on human visual system model, using multi-scale image fusion technology, any image can be added to the carrier image watermark
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Size: 198656 |
Author: 陈万虹 |
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Description: 结合HVS和相似性度量的图像质量评价测度,提出了一种新的图像质量评价模式.-image quality assessment metrics based on hunman visual system
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Size: 2451456 |
Author: 李洪均 |
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Description: 提取图片中特定颜色图案，更改颜色格式，由RGB转换为HVS-
Read the image and take a sample of red and yellow flowers；Change the color format of original image from RGB to HVS；Using the sampled data we are able to define the color space which has possible colors for our flowers in the image. Implement a simple model on your data space and use it for the original image to find all red and yellow flowers
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Size: 335872 |
Author: Chen Gaojun |
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Description: A watermarking paper for image authentication using HVS, only for research use
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Size: 1171456 |
Author: leelasaladi |
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Description: 提出一种新颖的基于HVS (Human Visual System) 和DCT (Discrete Cosine Transform)的数字水印算法。为保证视觉透明性和鲁棒性, 通过将二值水印图像映射为标准正态分布的伪
随机实数序列, 并利用HVS 的特性, 将水印嵌入宿主图像中频部分。-Propose a novel digital watermarking algorithm based on the HVS (Human Visual System) and DCT (Discrete Cosine Transform). To ensure that the visual transparency and robustness, the binary watermark image map for the standard normal pseudo-random sequence of real numbers, and take advantage of the characteristics of the HVS, the watermark is embedded in the IF portion of the host image.
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Size: 128000 |
Author: 张化 |
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