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https://github.com/simon987/wavelib.git
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commit : test->denoisetest for auxiliary
This commit is contained in:
Rafat Hussain
parent
1bde2f9824
commit
59bd91d4fa
@ -45,6 +45,6 @@ if(BUILD_UT)
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endif()
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add_subdirectory(src)
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add_subdirectory(denoise)
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add_subdirectory(auxiliary)
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install(DIRECTORY ${WAVELIB_SRC_ROOT}/include/ DESTINATION include FILES_MATCHING PATTERN "*.h")
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@ -1,16 +1,18 @@
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include_directories(${CMAKE_CURRENT_SOURCE_DIR})
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set(SOURCE_FILES denoise.c
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waux.c
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)
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set(HEADER_FILES denoise.h
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waux.h
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)
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add_library(denoiselib STATIC ${SOURCE_FILES} ${HEADER_FILES})
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add_library(wauxlib STATIC ${SOURCE_FILES} ${HEADER_FILES})
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target_link_libraries(denoiselib wavelib)
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target_link_libraries(wauxlib wavelib)
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set_property(TARGET denoiselib PROPERTY FOLDER "lib")
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set_property(TARGET wauxlib PROPERTY FOLDER "lib")
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target_include_directories(denoiselib PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
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target_include_directories(wauxlib PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
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@ -1,106 +1,6 @@
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#include "denoise.h"
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int compare_double(const void* a, const void* b)
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{
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double arg1 = *(const double*)a;
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double arg2 = *(const double*)b;
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if (arg1 < arg2) return -1;
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if (arg1 > arg2) return 1;
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return 0;
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}
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double median(double *x, int N) {
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double sigma;
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qsort(x, N, sizeof(double), compare_double);
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if ((N % 2) == 0) {
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sigma = (x[N/2 - 1] + x[N/2] ) / 2.0;
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} else {
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sigma = x[N/2];
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}
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return sigma;
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}
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double mad(double *x, int N) {
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double sigma;
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int i;
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sigma = median(x,N);
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for(i = 0; i < N;++i) {
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x[i] = (x[i] - sigma) > 0 ? (x[i] - sigma) : -(x[i] - sigma);
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}
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sigma = median(x,N);
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return sigma;
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}
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int minindex(double *arr, int N) {
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double min;
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int index,i;
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min = DBL_MAX;
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index = 0;
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for(i = 0; i < N;++i) {
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if (arr[i] < min) {
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min = arr[i];
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index = i;
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}
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}
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return index;
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}
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void getDWTAppx(wt_object wt, double *appx,int N) {
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/*
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Wavelet decomposition is stored as
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[A(J) D(J) D(J-1) ..... D(1)] in wt->output vector
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Length of A(J) , N = wt->length[0]
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*/
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int i;
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for (i = 0; i < N; ++i) {
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appx[i] = wt->output[i];
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}
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}
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void getDWTDetail(wt_object wt, double *detail, int N, int level) {
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/*
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returns Detail coefficents at the jth level where j = 1,2,.., J
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and Wavelet decomposition is stored as
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[A(J) D(J) D(J-1) ..... D(1)] in wt->output vector
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Use getDWTAppx() to get A(J)
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Level 1 : Length of D(J), ie N, is stored in wt->length[1]
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Level 2 :Length of D(J-1), ie N, is stored in wt->length[2]
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....
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Level J : Length of D(1), ie N, is stored in wt->length[J]
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*/
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int i, iter, J;
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J = wt->J;
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if (level > J) {
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printf("The decomposition only has %d levels", J);
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}
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iter = wt->length[0];
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for (i = 1; i < level; ++i) {
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iter += wt->length[i];
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}
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for (i = 0; i < N; ++i) {
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detail[i] = wt->output[i + iter];
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}
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}
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void visushrink(double *signal,int N,int J,char *wname,char *method,char *ext,char *thresh,double *denoised) {
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int filt_len,iter,i,dlen,dwt_len,sgn, MaxIter;
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double sigma,td,tmp;
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@ -4,12 +4,8 @@ Copyright (c) 2017, Rafat Hussain
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#ifndef DENOISE_H_
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#define DENOISE_H_
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <float.h>
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#include <math.h>
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#include "../header/wavelib.h"
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#include "waux.h"
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#ifdef __cplusplus
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extern "C" {
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@ -20,8 +16,6 @@ void visushrink(double *signal,int N,int J,char *wname,char *method,char *ext,ch
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void sureshrink(double *signal,int N,int J,char *wname,char *method,char *ext,char *thresh,double *denoised);
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double mad(double *x, int N);
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#ifdef __cplusplus
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}
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103
auxiliary/waux.c
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103
auxiliary/waux.c
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@ -0,0 +1,103 @@
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#include "waux.h"
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int compare_double(const void* a, const void* b)
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{
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double arg1 = *(const double*)a;
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double arg2 = *(const double*)b;
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if (arg1 < arg2) return -1;
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if (arg1 > arg2) return 1;
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return 0;
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}
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double median(double *x, int N) {
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double sigma;
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qsort(x, N, sizeof(double), compare_double);
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if ((N % 2) == 0) {
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sigma = (x[N/2 - 1] + x[N/2] ) / 2.0;
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} else {
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sigma = x[N/2];
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}
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return sigma;
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}
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double mad(double *x, int N) {
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double sigma;
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int i;
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sigma = median(x,N);
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for(i = 0; i < N;++i) {
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x[i] = (x[i] - sigma) > 0 ? (x[i] - sigma) : -(x[i] - sigma);
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}
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sigma = median(x,N);
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return sigma;
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}
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int minindex(double *arr, int N) {
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double min;
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int index,i;
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min = DBL_MAX;
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index = 0;
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for(i = 0; i < N;++i) {
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if (arr[i] < min) {
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min = arr[i];
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index = i;
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}
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}
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return index;
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}
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void getDWTAppx(wt_object wt, double *appx,int N) {
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/*
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Wavelet decomposition is stored as
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[A(J) D(J) D(J-1) ..... D(1)] in wt->output vector
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Length of A(J) , N = wt->length[0]
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*/
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int i;
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for (i = 0; i < N; ++i) {
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appx[i] = wt->output[i];
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}
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}
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void getDWTDetail(wt_object wt, double *detail, int N, int level) {
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/*
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returns Detail coefficents at the jth level where j = 1,2,.., J
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and Wavelet decomposition is stored as
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[A(J) D(J) D(J-1) ..... D(1)] in wt->output vector
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Use getDWTAppx() to get A(J)
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Level 1 : Length of D(J), ie N, is stored in wt->length[1]
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Level 2 :Length of D(J-1), ie N, is stored in wt->length[2]
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....
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Level J : Length of D(1), ie N, is stored in wt->length[J]
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*/
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int i, iter, J;
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J = wt->J;
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if (level > J) {
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printf("The decomposition only has %d levels", J);
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}
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iter = wt->length[0];
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for (i = 1; i < level; ++i) {
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iter += wt->length[i];
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}
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for (i = 0; i < N; ++i) {
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detail[i] = wt->output[i + iter];
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}
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}
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42
auxiliary/waux.h
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42
auxiliary/waux.h
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@ -0,0 +1,42 @@
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/*
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* waux.h
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*
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* Created on: Aug 22, 2017
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* Author: Rafat Hussain
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*/
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#ifndef AUXILIARY_WAUX_H_
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#define AUXILIARY_WAUX_H_
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <float.h>
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#include <math.h>
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#include "../header/wavelib.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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int compare_double(const void* a, const void* b);
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double median(double *x, int N);
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double mad(double *x, int N);
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int minindex(double *arr, int N);
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void getDWTAppx(wt_object wt, double *appx,int N);
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void getDWTDetail(wt_object wt, double *detail, int N, int level);
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#ifdef __cplusplus
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}
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#endif
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#endif /* AUXILIARY_WAUX_H_ */
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@ -5,7 +5,7 @@
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#include "../header/denoise.h"
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int main() {
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// gcc -Wall -I../header -L../Bin denoisetest.c -o denoise -ldenoiselib -lwavelib -lm
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// gcc -Wall -I../header -L../Bin denoisetest.c -o denoise -lwauxlib -lwavelib -lm
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double *inp,*oup;
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int i,N,J;
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FILE *ifp,*ofp;
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