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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。
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Author: kurt |
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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: 二值图像的信息隐藏，用到md5加密和改进后的置乱算法-Binary Image Information Hiding, use md5 encryption and improved hashing algorithm
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Size: 1024 |
Author: guaiguai |
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Description: 本程序介绍猫脸图象置乱算法，主要用于水印图象。-Introduction This procedure cat face image hashing algorithm, mainly for watermark image.
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Size: 1024 |
Author: 李晨 |
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Description: pHash is an implementation of various perceptual hashing algorithms. A perceptual hash is a fingerprint of an audio, video, or image file that is mathematically based on the audio or visual content contained within. Unlike cryptographic hash functions that rely on the avalanche effect of small changes in input leading to drastic changes in the output, perceptual hashes are "close" to one another if the inputs are visually or auditorily similar. As a result, perceptual hashes must also be robust enough to take into account transformations that could have been performed on the input.
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Size: 293888 |
Author: ssomsak |
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Description: matlab perceptual image hashing
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Size: 246784 |
Author: parimal |
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Description: 图像的谱哈希算法，输入图像，然后提取图像的gist特征，经过谱哈希算法，产生哈希序列-Spectral image hash algorithm, the input image, and then extract the image of the gist features through spectral hash algorithms produce hash sequence
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Size: 201728 |
Author: 刘洋 |
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Description: 将图像提取gist向量，然后计算各向量之间的欧氏距离，进行比较。-Extracted gist vector image, and then calculate the Euclidean distance between vectors, for comparison.
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Size: 1024 |
Author: 刘洋 |
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Description: 图像认证中的博士论文PDF和答辩PPT，关于Image Hashing技术，最新下载自美国名校The University of Texas at Austin的Brian L. Evans教授的实验室网站
-Thesis on robust image hashing downloaded from Professor Brian L. Evans in University of Texas at Austin in USA
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Size: 2097152 |
Author: yhnc |
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Description: 图像认证中的Image Hashing技术，源码最新下载自美国名校The University of Texas at Austin的Brian L. Evans教授的实验室网站-Matlab programs for image hashing downloaded from Professor Brian L. Evans in University of Texas at Austin in USA
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Size: 2107392 |
Author: yhnc |
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Description: check duplicates for a image after hashing
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Size: 5120 |
Author: prabhav |
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Description: matlab程序 图像哈希实现 用于图像认证领域-image hashing is used in authentication
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Size: 874496 |
Author: 韦贤艺 |
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Description: 基于spectral hash的特征binary化，大大提高图像检索的速度-Based on the characteristics of the spectral hash binary, greatly improving the image retrieval speed
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Size: 945152 |
Author: 曾成斌 |
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Description: 图像高维特征的hash化，大大提高检索速度-Image of high-dimensional feature hash, and greatly improve the retrieval speed
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Size: 161792 |
Author: 曾成斌 |
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Description: combined hashing and watermarking
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Size: 505856 |
Author: neha |
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Description: 主要是图像hash的对比试验可用，这个是图像哈希的一篇论文的实现代码。-image hash code
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Size: 1998848 |
Author: 阮林林 |
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Description: 图像哈希算法，SVD-SVD的编码。可供做图像hash的研究人员做对比试验-image hash SVD-SVD
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Size: 1503232 |
Author: 阮林林 |
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Description: 通过强大和安全的形象散列 非负矩阵因式分解，在信息取证与安全，376-390，2007年IEEE交易。NMF-NMF-SQ哈希- V. Monga, and M. K. Mihcak, Robust and secure image hashing via
non-negative matrix factorizations, IEEE Transactions on Information Forensics and Security, 2(3), 376-390, 2007.
NMF-NMF-SQ Hashing
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Size: 226304 |
Author: Dr_wong |
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Description: may contain objects of multiple categories, are widely involved in many image retri systems. However, in most existing hashing methods for images, the semantic similarities are defined at image level, and each image is represented by one piece of hash code. This setting may be suboptimal for multi-label image retri -may contain objects of multiple categories, are widely involved in many image retri systems. However, in most existing hashing methods for images, the semantic similarities are defined at image level, and each image is represented by one piece of hash code. This setting may be suboptimal for multi-label image retri
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Size: 14336 |
Author: rasul |
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Description: 图像哈希算法phash的源代码，可用于图像搜索的学习(Image hashing algorithm-phash)
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Size: 16030720 |
Author: 验证码去死
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