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二维小波变换
- 关于二维小波变换的程序 [精华] 说明：此算法重在概念，速度并不是很快。因为FOR循环的缘故。此程序从循环矩阵的观点出发，把圆周卷积和快速幅里叶变换建立了联系。实现了分解和无失真重构。它只做了一层分解，即将256x256图形分解成为64x64的四个图形，避免了使用WKEEP()的困惑。主要思想为用小波滤波器族构造正交阵W,变换写为B=W*A*W ,反变换为：A=W *A*W,这与所有正交变换无异。W为循环正交矩阵，因此可用FFT实现快速运算，难点就在重构矩阵上。若用矩阵概念明确，一个
mallat11
- 小波谱分析mallat算法经典程序，圆周卷积的快速傅里叶变换-small spectral analysis algorithm Mallat classic procedure, the circular convolution Fast Fourier Transform
conv2_bspline
- B样条函数与图像进行卷积的matlab快速算法。-B-spline function with images fast algorithm matlab convolution.
Graphics4
- 图形算法合集4：快速线性插值、半色调技术、使用lookup查找表的快速卷积、Nurbs曲面三角化等等。-Graphical Collection 4: rapid linear interpolation, halftoning techniques, the use of look-up table lookup fast convolution, Nurbs surface triangulation and so on.
fwt2d_demo
- 小波变换源码，国外VC开发的，效果比较好 I ve been involved with wavelet-analysis since my Ph.D studies and over the years developed various wavelet-transforms C++ libraries. This one concerns 2D implementation of the Fast wavelet transform (FWT). The 2D FWT is used i
shiftsequence
- 开发circonvt函数来计算序列的圆周移位 编写一个matlab函数，实现快速卷积算法-Development circonvt function to calculate the circumference of the shift sequence write a matlab function, fast convolution algorithm
2
- 边缘特征的提取就是求图像梯度的局部最大值和方向。实际计算中，以微分算子的形式表示，并采用快速卷积函数来实现。常用的算子有微分算子，拉普拉斯算子，Canny算子等。其中Canny边缘检测是一种较新的边缘检测算子，具有较好的边缘检测性能，得到越来越广泛的应用。Canny边缘检测法利用高斯函数的一阶微分，它能在噪声抑制和边缘检测之间取得较好的平衡-Edge feature extraction is to seek the local maximum of image gradient and ori
Detection-of-Wood-defectDefect-
- 一个快速的多尺度边缘检测算法是建造时的形象和过滤器做卷积和应用木材缺陷 图像边缘检测。 -A fast multi-scale edge detection algorithm was constructed when the image and filter do convolution and applied to the wood defect image edge detection.
Fast-2-D-convolution
- 图像处理中经常用到卷积运算，它并不能等同于普通的二维矩阵的卷积运算，为了解决边界效应，通常都要采取一些优化手段。请仔细阅读代码，必有收获。- Y = CONVOLVE2(X, M, SHAPE) where SHAPE is a string returns a subsection of the 2-D convolution with size specified by SHAPE
Fresnel
- 菲涅尔变换的一种卷积算法，计算非常快而且很好用-Fresnel transform of a convolution algorithm, the calculation is very fast and it just works
Fr
- 菲涅尔变换的一种卷积算法，计算非常快而且很好用-Fresnel transform of a convolution algorithm, the calculation is very fast and it just works
cuda2Dcov
- cuda 2D 二维图形上的快速卷积操作。C++语言实现-cuda 2D dimensional graphics on the fast convolution operation. C++ language
chuxue15
- 根据制定坐标选择六边形，傅立叶变换，快速卷积，conv2(A，B)直接卷积函数-According to the development coordinate selection hexagon, Fourier transform, fast convolution, conv2 (A, B) convolution function directly
MSc---Orthogonal-vs-Biorthogonal-Wavelets-for-Ima
- E ective image compression requires a non-expansive discrete wavelet transform (DWT) be employed consequently, image border extension is a critical issue. Ideally, the image border extension method should not introduce distortion under compressio