Search - DCT - CodeBus

Search - DCT - List

[Industry research] Image-Hashing-based-on-Human-Visual-System DL : 0: 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.
Date : 2025-12-22 Size : 164kb User : kurt
[Industry research] zuixinwenzhang DL : 0: 数字水印具有很大参考价值的文章基于DCT变换、分块DCT混沌脆弱水印、自嵌入水印、图像篡改定位及恢复的脆弱水印等15篇最新水印技术文章-Digital Watermarking of great reference value to the article based on the DCT transform, DCT block chaotic fragile watermarking, since the embedded watermark, image tampering localization and recovery fragile watermarking, such as the latest 15 articles watermarking technology
Date : 2025-12-22 Size : 5.97mb User : zhangyiyi
[Industry research] AsynchronousBundledDCT DL : 0: Efficient Asynchronous Bundled-data Pipelines for DCT Matrix-Vector Multiplication
Date : 2025-12-22 Size : 432kb User : photo26
[Industry research] 2010lisanyuxian DL : 0: 使用delphi开发的关于dct算法程序，希望能帮到大家，多多下载！-Developed using the delphi program on dct algorithm, hope can help everyone, lots of downloads!
Date : 2025-12-22 Size : 51kb User : 波少
[Industry research] DCT_TR802.pdf DL : 0: The Discrete Cosine Transform (DCT) Theory and Application
Date : 2025-12-22 Size : 977kb User : naresh
[Industry research] dct8x8 DL : 0: this is a code which is for data upload and dct calulation
Date : 2025-12-22 Size : 1.79mb User : ashu
[Industry research] detection-model-for-DCT-coefficient DL : 0: 这是一种基于DCT系数量化的检测模型，非常的一篇文献-An improved detection model for DCT coefficient quantization
Date : 2025-12-22 Size : 361kb User : 牛子蛋
[Industry research] synth_report DL : 0: Contains the synthesis report for DCT with and without feedback RAM
Date : 2025-12-22 Size : 17kb User : Prashanth
[Industry research] DCT-SIM DL : 0: Contains simulation snapshots for 2D DCT
Date : 2025-12-22 Size : 634kb User : Prashanth
[Industry research] aa DL : 0: Adaptive Blind Video Watermarking Algorithm using DCT transform
Date : 2025-12-22 Size : 1.05mb User : leelasaladi
[Industry research] pcmi7 DL : 0: dct matlab understanding on watermark
Date : 2025-12-22 Size : 40kb User : alok raj