Description: 数字水印常用变换如dct变换小波变换离散傅立叶变换等源代码-transform digital watermark used as Extra transform wavelet transform discrete Fourier transform, and other source code Platform: |
Size: 26953 |
Author:王袍 |
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Description: 数字水印常用变换如dct变换小波变换离散傅立叶变换等源代码-transform digital watermark used as Extra transform wavelet transform discrete Fourier transform, and other source code Platform: |
Size: 26624 |
Author:王袍 |
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Description: 该压缩包中包含了各种波变换，包括最基础的Fourier变换、DCT变换、Ｗalsh变换和小波变换。-The compression package includes a variety of wavelet transform, including the most basic Fourier Transform, DCT transform, Walsh transform and wavelet transform. Platform: |
Size: 577536 |
Author:shi zhenxiang |
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Description: 这是傅立叶梅林变换的MATLAB源代码,很实用,适合做水印或图象处理相关的朋友参考使用.-This is the Fourier Mellin Transform MATLAB source code, very useful, suitable for a watermark or image processing-related friends use and reference. Platform: |
Size: 120832 |
Author:li yong |
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Description: 基于傅立叶变换的数字图像水印嵌入程序源码-Based on the Fourier transform of digital image watermark embedding process source Platform: |
Size: 2525184 |
Author:lee |
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Description:
基于分数阶傅里叶变换的五篇博硕士论文，分别是在数字水印中的应用两篇，图象变换中的应用一篇，滤波中的应用一篇，目标检测中的应用一篇。-Based on Fractional Fourier Transform five Theses, respectively, in the digital watermark in the application of 2, images in the application of a transformation, filtering in the application of a target detection application 1. Platform: |
Size: 14194688 |
Author:刘玉然 |
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Description: Coefficients a and b control the low and high frequency ranges that the watermark affects. Because of the watermark invariant properties, we embed the watermark only in the Fourier descriptor magnitude. We use the inverse Fourier transform of the Fourier coefficients to produce the watermarked curve L . This watermarking method is also applicable in the control points of B-spline contour representations. In both polygonal curves and in B-spline curves, watermark embedding can create curve discontinuities or curve self-crossing. Platform: |
Size: 265216 |
Author:Mr Leo |
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Description: 基于傅里叶变换的数字水印算法，实现了图像里的水印的嵌入和提取。Matlab代码。-Fourier transform-based digital watermarking algorithm to achieve the image in the watermark embedding and extraction. Matlab code. Platform: |
Size: 2048 |
Author:冯桐 |
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Description: 基于傅里叶变换的数字水印算法，在原始图像的傅里叶变换域中对称的嵌入数字水印信息-Fourier transform-based digital watermarking algorithm, the original image of the Fourier transform domain, the embedded digital watermark information symmetry Platform: |
Size: 101376 |
Author:孙晓燕 |
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Description: 该算法把计算出的图像不变质心作为对其进行对数极坐标变换的原
点, 再作傅立叶变换, 取出中频段幅值作为水印嵌入域。该算法具有较好的鲁棒性、可检测性, 能同时抵抗几何攻击和信号
处理攻击, 它在数字图像的版权保护等领域有广泛的应用前景。-The algorithm to calculate the heart of the image does not degenerate as the number of its polar transformation of the origin, further Fourier transform, remove the watermark embedding in the frequency domain as amplitude. The algorithm has better robustness, detectability, can also resist geometric attacks and signal processing attacks, which in the digital image copyright protection and other fields have a wide range of applications. Platform: |
Size: 228352 |
Author:切尔西 |
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Description: 基于傅里叶变换的数字水印嵌入技术，可用于图像加密领域。-Based on the Fourier transform of the digital watermark technology
Platform: |
Size: 1526784 |
Author:allife |
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Description: 分数阶傅里叶数字水印方法实现，水印有很好的透明性和鲁棒性-Fractional Fourier methods to achieve the digital watermark, the watermark has good transparency and robustness Platform: |
Size: 150528 |
Author:liangzz |
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Description: Its a project that embed and detect watermarked image by using Discrete Fourier Transform. Platform: |
Size: 17408 |
Author:Fatima |
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Description: 【转】针对彩色载体图像，提出了一种彩色图像超复数频域的水印算法。它通过对彩色载体图像进行快速超复数傅氏变换，在超复数频域选择合适频段嵌入水印，并且修改其对称系数的值，保证了嵌入水印图像仍然可以用彩色图像的红、绿、蓝三色进行传输。分析表明提出的方法通过超复数傅氏逆变换，可以把水印带来的误差扩散到整幅图像，并且是分散到红、绿、蓝三色的各个分量上，从而实现数字水印的不易感知性和安全性的良好结合。本算法还提出了对水印数据进行“交叉冗余嵌入”的规则，以进一步提高数字水印的鲁棒性。最后给出了实验结果，验证了本算法的优越性-[Turn] for color vector image, proposed a color image watermarking algorithm hypercomplex frequency domain. It is through the color vector images hypercomplex fast Fourier transform in the frequency domain over the complex to choose the right band watermarked, and modify the value of its symmetric coefficients, to ensure that the watermarked image can still use color images of red, green and blue color transmission. Analysis shows that the method proposed by hypercomplex Fourier inverse transform, the error can be caused by diffusion of the watermark to the entire image, and is dispersed to the respective components of red, green, and blue, so that digital watermark is not easy perceptibility and a good combination of safety. The algorithm is also proposed for the watermark data " Cross redundant embedded" rule, in order to further improve the robustness of digital watermarking. Finally, the experimental results verify the superiority of the algorithm Platform: |
Size: 3072 |
Author:柠檬草の味道 |
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Search - fourier watermark