commit : test->denoisetest for auxiliary

auxiliary/denoise.c

@@ -1,106 +1,6 @@
 
 #include "denoise.h"
 
-int compare_double(const void* a, const void* b)
-{
-    double arg1 = *(const double*)a;
-    double arg2 = *(const double*)b;
- 
-    if (arg1 < arg2) return -1;
-    if (arg1 > arg2) return 1;
-    return 0;
- 
-}
-
-double median(double *x, int N) {
-	double sigma;
- 
-    qsort(x, N, sizeof(double), compare_double);
-    
-    if ((N % 2) == 0) {
-		sigma = (x[N/2 - 1] + x[N/2] ) / 2.0;
-	} else {
-		sigma = x[N/2];
-	}
-	
-	return sigma;
-}
-
-double mad(double *x, int N) {
-	double sigma;
-	int i;
-	
-	sigma = median(x,N);
-	
-	for(i = 0; i < N;++i) {
-		x[i] = (x[i] - sigma) > 0 ? (x[i] - sigma) : -(x[i] - sigma);
-	}
-	
-	sigma = median(x,N);
-	
-	return sigma;
-}
-
-int minindex(double *arr, int N) {
-	double min;
-	int index,i;
-
-	min = DBL_MAX;
-	index = 0;
-	for(i = 0; i < N;++i) {
-		if (arr[i] < min) {
-			min = arr[i];
-			index = i;
-		}
-	}
-
-	return index;
-
-}
-
-void getDWTAppx(wt_object wt, double *appx,int N) {
-	/*
-	Wavelet decomposition is stored as
-	[A(J) D(J) D(J-1) ..... D(1)] in wt->output vector
-
-	Length of A(J) , N = wt->length[0]
-	*/
-	int i;
-
-	for (i = 0; i < N; ++i) {
-		appx[i] = wt->output[i];
-	}
-}
-
-void getDWTDetail(wt_object wt, double *detail, int N, int level) {
-	/*
-	returns Detail coefficents at the jth level where j = 1,2,.., J
-	and Wavelet decomposition is stored as
-	[A(J) D(J) D(J-1) ..... D(1)] in wt->output vector
-	Use getDWTAppx() to get A(J)
-	Level 1 : Length of D(J), ie N, is stored in wt->length[1]
-	Level 2 :Length of D(J-1), ie N, is stored in wt->length[2]
-	....
-	Level J : Length of D(1), ie N, is stored in wt->length[J]
-	*/
-	int i, iter, J;
-	J = wt->J;
-
-	if (level > J) {
-		printf("The decomposition only has %d levels", J);
-	}
-
-	iter = wt->length[0];
-
-	for (i = 1; i < level; ++i) {
-		iter += wt->length[i];
-	}
-
-	for (i = 0; i < N; ++i) {
-		detail[i] = wt->output[i + iter];
-	}
-}
-
 void visushrink(double *signal,int N,int J,char *wname,char *method,char *ext,char *thresh,double *denoised) {
 	int filt_len,iter,i,dlen,dwt_len,sgn, MaxIter;
 	double sigma,td,tmp;