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水印系统必然要在算法的鲁棒性、水印的嵌入信息量以及水印嵌入之后的不可觉察性之间达到一个平衡。这涉及鲁棒性算法的原理性设计、水印的构造模型、水印能量和容量的理论估计、-Watermarking system must be robust in the algorithm, the embedded watermark information, as well as after the watermark embedding is not aware of to achieve a balance
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watermarking algorithm in matlab.
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LSB 方式信息隐藏算法鲁棒性较差，为加大水印攻击难度，可采用一段伪随机序列来控制水印嵌入位置。-LSB mode information hiding algorithm less robust, in order to increase the difficulty of watermarking attack, a pseudo-random sequence can be used to control the watermark embedding locations.
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基于小波变换的数字水印算法matlab代码，分析了该信号的时域、频域、倒谱，循环谱等,考虑雨衰 阴影 和多径影响。- Based on wavelet transform digital watermarking algorithm matlab code, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Consider shadow rain attenuation a
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利用最小二乘算法实现对三维平面的拟合，阵列信号处理的高分辨率估计，实现了图像的加水印，去噪，加噪声等功能。- Least-squares algorithm to fit a three-dimensional plane, High-resolution array signal processing estimates, Realize image watermarking, de-noising, plus noise and other functions.
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基于小波变换的数字水印算法matlab代码，旋转机械二维全息谱计算，包含飞行器飞行中的姿态控制，如侧滑角，倾斜角，滚转角，俯仰角。- Based on wavelet transform digital watermarking algorithm matlab code, Rotating machinery 2-d holographic spectrum calculation, It comprises aircraft flight attitude control, such as
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实现了图像的加水印，去噪，加噪声等功能，最终的权值矩阵就是滤波器的系数，包括随机梯度算法，相对梯度算法。- Realize image watermarking, de-noising, plus noise and other functions, The final weight matrix is ??the filter coefficient, Including stochastic gradient algorithm, the relative gradient algorith
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