-
Segmentation
This matlab code implements the region split and merge segmentation of an image
- 2011-08-24 22:19:21下载
- 积分:1
-
xiashan
MATLAB 牛顿下山法的一个小程序,原理就不详细说了。因牛顿迭代法受初值选取的限制,为防止迭代发散,对迭代过程再附加一项要求:|f(x(k+1))|<|f(x(k))|,将牛顿法迭代的结果:x(k+1) =x(k)-f(x(k))/f (x(k))和前一近似值x(k)适当加权平均做为新的改进值:x(k+1)=u*x(k+1) +(1-u)*x(k),其中u(0<>
迭代时u取1开始,逐次减半计算,直至附加要求符合为止。实例计算中x(k)=x(0)不变,只更新u和x(k+1),直至:|f(x(k+1))|<|f(x(k))|(即|f(x(1))|<|f(x(0))|),然后更新下山因子为u=1,继续以牛顿法迭代。(MATLAB Newton-down a small program, the principle is not explained in detail. Newton iteration by the initial value of the selected limit, in order to prevent additional iterative divergence, the iterative process a request: | f (x (k+1)) | < | f (x (k)) | Newton iteration Results: x (k+1) ' = X (k)-f (x (k))/f' (x (k)) and a previous approximation x (k), appropriately weighted average as a new improved value: x (k+1 ) = u* x (k+1) ' + (1-u)* x (k), where u (0 < u> iteration take successive calculated at 50 until the additional requirements found so far. examples of calculation of X ( k) = x (0) unchanged profile u and x (k+1, hungry) until: | f (x (k+1)) | < | f (x (k)) | (i.e. | f (x (1)) | < | f (x (0)) |), then profile downhill factor for u = 1, to continue to Newton iteration.)
- 2013-05-15 08:52:09下载
- 积分:1
-
Filters
各种滤波器,包括LMS、RLS、Wiener,Kalman,Median等滤波器源码,都是原创(A variety of filters, including the LMS, RLS, Wiener, Kalman, Median filter, such as source code, are original)
- 2009-01-19 17:04:18下载
- 积分:1
-
Gne
应用遗传算法对多目标问题的优化,matlab实现(Gne. algorithm)
- 2009-10-31 10:55:04下载
- 积分:1
-
lifting_97
实现9/7小波正反变换
注1: 采用标准正交方法,对行列采用不同矩阵(和matlab里不同)
注2: 为了保证正交,所有边界处理,全部采用循环处理
注3: 正交性验证,将单位阵带入函数,输出仍是单位阵(matlab不具有此性质)
注4: 此程序是矩阵实现,所以图像水平分量和垂直分量估计被交换位置
注5: 此程序实现的是类小波(wavelet-like)变换,是介于小波包变换与小波变换之间的变换
注6: 此程序每层变换相对原图像矩阵,产生的矩阵都是正交阵,这和小波包一致
注7: 但小波变换每层产生的矩阵,是相对每个待分解子块的正交矩阵,而不是原图像的正交矩阵
注8: 且小波变换产生的正交矩阵维数,随分解层数2分减少
注9: 提升系数可以在MATLAB7.0以上版本,用liftwave( 9.7 )获取,这里直接给出,考虑兼容性
注10:由于MATLAB数组下标从1开始,所以注意奇偶序列的变化
注11:d为对偶上升,即预测;p为原上升,即更新(Note 1: The standard orthogonal method, the ranks of the different matrices (and matlab where different)
Note 2: In order to ensure orthogonality, all boundary treatment, all with recycling
Note 3: Orthogonal validation, the identity matrix into the function, the output is still the unit matrix (matlab does not have this property)
Note 4: This program is a matrix to achieve, so the image horizontal and vertical components is estimated to be swapped
Note 5: This class implements the wavelet (wavelet-like) transformation, is between the wavelet packet transform and wavelet transform between
Note 6: This procedure transforms each image relative to the original matrix, the resulting matrix are orthogonal matrix, consistent with this and wavelet packet
Note 7: But each generation wavelet transform matrix, is to be broken down for each sub-block relative to the orthogonal matrix, rather than the original image of the orthogonal matrix
Note 8: Wavelet transf)
- 2011-08-30 17:51:56下载
- 积分:1
-
MCBPSK_Matlab
多载波的采用二进制移相键控BPSK调制的性能matlab仿真(none)
- 2009-11-04 14:26:03下载
- 积分:1
-
ipexhistology
It is related to image processing
- 2011-06-22 17:14:37下载
- 积分:1
-
LTE_conv_decoder
conventional decoder for LTE-A
- 2014-10-20 22:33:08下载
- 积分:1
-
5678000pid
在MATLAB的simulink环境中搭建的PID控制模型,用于温度控制(In the MATLAB simulink environment built PID control model for temperature control)
- 2013-06-02 01:02:35下载
- 积分:1
-
blackjack
matlab,关于扑克牌识别的matlab程序,很不错(matlab, on identification cards matlab procedures, very good)
- 2008-12-11 14:44:09下载
- 积分:1