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Description: DCT余弦变换编码，处理效果还是不错的-DCT cosine transform coding, the treatment effect is still good
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Size: 1024 |
Author: 夏正浩 |
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Description: 基于matlab编写的dct数字水印程序，文件包括有源程序以及简单的说明等-DCT matlab prepared based on digital watermarking procedures, documentation, including source code, as well as simple descriptions
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Size: 1024 |
Author: 张伟 |
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Description: 基于DCT域的鲁棒水印，能抗击一定程度的压缩，剪切等攻击-Based on the DCT domain robust watermarking, can fight against a certain degree of compression, shear, such as attacks
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Size: 43008 |
Author: Robin |
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Description: 利用DCT变化对tif图像进行压缩利用DCT变换进行图像压缩的MATLAB程序-Changes in the use of DCT compression of tif images using DCT transform image compression MATLAB program
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Size: 802816 |
Author: ruiomar |
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Description: 好的水印的matlab dct,dwt代码,-something about watermark
it s good for you
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Size: 620544 |
Author: 秦伟 |
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Description: klt经典程序，可以在matlab里面直接运行-KLT classical procedures, can be run directly in matlab
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Size: 63488 |
Author: yujufeng |
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Description: 在matlab的环境下基于DCT的数字水印研究-matlab
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Size: 3254272 |
Author: 宋巍 |
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Description: 已知两个不同图像块亮度数据如下：
（1）分析DCT原理，采用DCT方法，编程并计算相应的DCT系数，分析系数分布特点。
（2）依据视觉特性分析量化表步长的分布特点，完成DCT系数量化。
（3）采用Z形扫描，实现输出数据的统计编码，形成Video stream。
（4）采用IDCT重建图像亮度数据，计算SAD大小，分析产生误差的原因及采用DCT进行数据压缩的原理。（ ）
（5）分别利用左上角1、3、6个系数重建图像，计算相应的SAD，并由此分析直流和低频系数的重要性。
-Known brightness of two different image data block is as follows: (1) Principles of analysis of DCT, the DCT method, program and calculate the corresponding DCT coefficient, analysis of distribution coefficients. (2) quantitative analysis based on visual characteristics of the distribution of long-form features step-by-step to complete the DCT coefficient quantization. (3) the use of Z-scan output data to achieve statistical encoding, the formation of Video stream. (4) the use of the reconstructed image brightness IDCT data to calculate the SAD size, analysis of the causes of errors and the use of DCT for the principle of data compression. () (5), respectively, a factor of 1,3,6 using the upper left corner of the reconstruction of images, calculating the corresponding SAD, and the resulting analysis of DC and the importance of low-frequency coefficients.
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Size: 1024 |
Author: 张元 |
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Description: 该程序利用matlab实现了基于DWT的数字图像水印-Matlab use the program to achieve the DWT-based Digital Image Watermarking
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Size: 877568 |
Author: yinkexin |
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Description: 在MATLAB里，基于dct域,实现在二维图像中嵌入数字水印 并提取。-In MATLAB, the dct-based domain, the realization of two-dimensional images in the digital watermark embedding and extraction.
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Size: 105472 |
Author: lizhenzhen |
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Description: 基于MATLAB的数字水印技术研究
关键词：数字水印 Matlab Visual C++6.0 DWT DCT
-MATLAB-based digital watermarking technology research Keywords: digital watermarking Matlab Visual C++6.0 DWT DCT
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Size: 6144 |
Author: 晴 |
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Description: 利用dct实现JPEG在Matlab环境下图像压缩程序-Matlab environment in JPEG image compression procedure
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Size: 3072 |
Author: 石头 |
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Description: 基于DCT的SVD算法，对于几何攻击有很强的鲁棒性-DCT-SVD algorithm, robustness on geometry attack
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Size: 561152 |
Author: 宋春霖 |
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Description: 利用matlab的DCT2函数，对图像做变换并压缩。并用8*8对图像分块，对每一块计算均方值作为阈值。-DCT2 use the matlab function, and transform the image so compressed. And 8* 8 image block, a calculation of each mean square value as a threshold.
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Size: 1024 |
Author: 马丁 |
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Description: 数字水印系统的实现——基于DCT的鲁棒水印。图像中数字水印的嵌入，分块DCT反变换-Image digital DCT
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Size: 1024 |
Author: 陈文 |
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Description: bmp DCT 压缩
对原图像进行DCT变换，数据压缩，丢弃右下角高频数据，进行DCT反变换，得到压缩后的图像-bmp DCT compression of the original image DCT transform, data compression, discarding the lower right corner frequency data, DCT inverse transform, the images are compressed
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Size: 156672 |
Author: zjj |
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Description: 好东东哦，希望大家来下载，是 我们本科毕业设计论文成果，基于dct域的数字水印技术
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Size: 4009984 |
Author: Lily |
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Description: 用matlab对一张图片进行DFT变换，DCT变换,比较保留20个DCT变换系数重构的图象与原始图像的差别.-Using matlab on a picture to DFT transform, DCT transform, compared to 20 DCT transform coefficients to retain the image reconstruction of the difference between the original image.
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Size: 455680 |
Author: tosh |
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Description: 基于DCT域数字图像水印的MATLAB实现-DCT domain based on MATLAB implementation of digital image watermarking
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Size: 78848 |
Author: kingkong_code |
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Description: 这个是MATLAB DCT水印源程序代码，提供下载，课程设计非常的实用啊。-This is a MATLAB DCT watermark source code, available for download, curriculum design is very practical ah.
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Size: 1024 |
Author: 木言 |
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