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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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Size: 168192 |
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:
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Size: 2048 |
Author: AMY |
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Description: 在图像加密中用到的md5算法，也就是哈希置换-In the image of the md5 encryption algorithm used, that is, hash replacement
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Size: 1024 |
Author: guaiguai |
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Description: 这是一篇基于Hash函数敏感性的医学图像精确认证.本文提出了一种基于提升格式的整数小波变换和Hash函数敏感性相结合的易碎水印方法-This is a Hash Function Based on the sensitivity of the medical image accurate authentication. In this paper, a lifting scheme based on integer wavelet transform and Hash function that combines the sensitivity of fragile watermarking method
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Size: 616448 |
Author: hj |
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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: 論文探討關於以圖像做為密碼，以杜絕鍵盤側錄偷竊密碼-We have design and implemented a method that uses a
strengthened cryptographic hash function to compute fast and
secure passwords for arbitrarily many accounts while requiring
the user to memorize only few memorable points in the image.
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Size: 402432 |
Author: |
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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: 在c++中调用hash算法，并运用hash算法实现图像置乱-Achieve hash image scrambling
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Size: 2048 |
Author: 聂凯旋 |
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Description: 在Matlab中的图像哈希Toobox。
该hashingdemo执行一两个图像匹配自动测试演示了知觉。这是通过计算哈希做了两个图像的方法和比较向量中包含的哈希是一种有意义的图像-Matlab in image hash Toobox. A two images of the execution of the hashingdemo match the automatic test demo consciousness. This is done by calculating the hash hash contained in the method and comparison of the two images in the vector is a meaningful image
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Size: 932864 |
Author: 范小娟 |
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Description: image hash using radon transform
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Size: 119808 |
Author: vous |
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Description: 利用感知哈希算法将N幅图片用汉明距离表示出来进行对比，可求其相似度-Hash algorithm using the perception of N pictures that come out with a Hamming distance by comparing the similarity rectifiable
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Size: 207872 |
Author: 李语丝 |
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Description: Digital image hash function
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Size: 78848 |
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: 计算求解图像HASH码的python代码-Computing for image HASH code python code
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Size: 1024 |
Author: 高利鹏 |
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Description: An excellent reference for image resampling is Digital Image Warping.Pointer to routine to upsample a single component.
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Size: 18432 |
Author: kenhingds |
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Description: 数字水印，利用稀疏编码的哈希算法对图像进行处理后的数据。-watermark, the sparse coding is used to hash the image.Therefore it s very convient to retrieve.
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Size: 414720 |
Author: 张昊 |
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Description: 感知哈希比较图像的相似度，先将图像归一化，然后在比较图片-
Perceptual similarity hash comparison image, the first image normalization, then the comparison image
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Size: 4227072 |
Author: 董林佳 |
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Description: 感知hash对比图片，提取图像特征，然后得到hash值，从而对比图片-Perceive hash contrast pictures, extract image features, and then get hash values, thus comparing pictures
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Size: 6924288 |
Author: 曾义员 |
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