?? imodwt.c
字號:
#include "mex.h"#include "math.h"/* mex -v -f ./mexopts.sh imodwt.c */void imodwt(double *Win, double *Vin, int *N, int *j, int *L, double *ht, double *gt, double *Vout){ int k, n, t; for(t = 0; t < *N; t++) { k = t; Vout[t] = (ht[0] * Win[k]) + (gt[0] * Vin[k]); for(n = 1; n < *L; n++) { k += (int) pow(2.0, (double) *j - 1.0); if(k >= *N) k -= *N; Vout[t] += (ht[n] * Win[k]) + (gt[n] * Vin[k]); } }}void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[]){ int N, J, L; int m, n; double *Vout; double *Win, *Vin, *ht, *gt; /* Check for proper number of arguments */ if (nrhs != 5) { mexErrMsgTxt("DWT requires five input arguments."); } else if (nlhs > 1) { mexErrMsgTxt("DWT requires one output argument."); } Win = mxGetPr(prhs[0]); Vin = mxGetPr(prhs[1]); ht = mxGetPr(prhs[2]); gt = mxGetPr(prhs[3]); J = (int) mxGetScalar(prhs[4]); mexPrintf("J = %d\n", J); m = mxGetM(prhs[0]); mexPrintf("m = %d\n", m); n = mxGetN(prhs[0]); mexPrintf("n = %d\n", n); /* Create matrices for the return arguments */ plhs[0] = mxCreateDoubleMatrix(m, n, mxREAL); /* Assign pointers to the various parameters */ Vout = mxGetPr(plhs[0]); N = mxGetNumberOfElements(prhs[0]); L = mxGetNumberOfElements(prhs[2]); /* Do the actual computations in a subroutine */ imodwt(Win, Vin, &N, &J, &L, ht, gt, Vout); return;}?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -