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TDWTT_2DDh
- 此源代码用以实现二维离散小波变变换,一种基于mallat塔式算法 -This source code is used to achieve the two-dimensional discrete wavelet transform to transform a pyramid algorithm based mallat
erweihundun
- 本文提出了基于二维混沌映射的数字图像水印算法,混沌具有随机性、似噪声及对初始条件的极端敏感性等特点。将经过二维混沌映射置乱后的数字水印信号嵌入图像小波域的低频系数,实现了数字水印的隐蔽性、保密性和稳固性;利用二维混沌映射Arnold变换对水印信号进行置乱,不仅增强了水印信号保密性,同时有效提高了视觉上抵抗图像剪切攻击的能力-failed to translate
Wavelet-Denoising
- 利用小波包变换对一个二维含噪图像进行消噪处理-Using wavelet packet transform to a two-dimensional image with noise denoising
prpmbfay
- 旋转机械二维全息谱计算,采用了小波去噪的思想,IDW距离反比加权方法,正确率可以达到98%,结合PCA的尺度不变特征变换(SIFT)算法,滤波求和方式实现宽带波束形成。- Rotating machinery 2-d holographic spectrum calculation, Using wavelet denoising thought, IDW inverse distance weighting method, Accuracy can reach 98 , Combined wi
Microsoft-Office-Word--
- 利用小波快速傅里叶变换求解二阶、二维波动方程、泊松方程-Using wavelet fast Fourier transform to solve the second order, two-dimensional wave equation