void DiscretePeriodicWavelet::makeTransform()
{
m_flag.clear();
m_length.clear();
m_transformedSignal.clear();
m_outputSignal.clear();
if (m_inputSignal.empty()) {
return;
}
dwt(m_inputSignal, m_level, toStdString(m_waveletFunction), m_transformedSignal, m_flag, m_length);
}
void spec_template::sample_log_fwhh_re(size_t t)
{
double log_fwhh_re_prop;
double logratio = 0;
log_fwhh_re_prop=my_normrnd(FTems[t].log_fwhh_re_draw, sqrt(pars.log_fwhh_re_prop_var), rng);
matrix Lprop (L);
vector<double> decon(pars.p,0.0);
FTems[t].build_curve_fwhh_re_prop(pars.x, log_fwhh_re_prop, log_fwhh_draw, pars.freq);
if(WAVELETS)
{
dwt(FTems[t].curve_prop,pars.nlev, pars.h_vec, decon);
Lprop[t] = decon;
}
else
{
Lprop[t] = FTems[t].curve_prop;
}
logratio = calculate_metropolis_ratio_eta_local(&Lprop);
double logprior=0.0;
logprior+=normlogpdf(log_fwhh_re_prop, 0.0, sqrt(pars.log_fwhh_re_prior_var));
logprior-=normlogpdf(FTems[t].log_fwhh_re_draw, 0.0, sqrt(pars.log_fwhh_re_prior_var));
//logratio
//proposal
//cancels out
logratio+=logprior;
//logproposal
double logacceptance=log(my_rand(rng));
if(logratio>logacceptance)
{
FTems[t].prop_accept_log_fwhh_re(log_fwhh_re_prop);
shape_accepcount=shape_accepcount+1;
L[t]=Lprop[t];
FTems[t].log_fwhh_re_draw=log_fwhh_re_prop;
}
}
void spec_template::sample_log_fwhh()
{
double log_fwhh_prop;
double logratio = 0;
log_fwhh_prop=my_normrnd(log_fwhh_draw, sqrt(pars.log_fwhh_prop_var), rng);
matrix Lprop (L);
vector<double> decon(pars.p,0.0);
for (int t = 0; t < pars.l; t++)
{
FTems[t].build_curve(pars.x,log_fwhh_prop, pars.freq);
if(WAVELETS)
{
dwt(FTems[t].curve_prop,pars.nlev, pars.h_vec, decon);
Lprop[t] = decon;
}
else
{
Lprop[t] = FTems[t].curve_prop;
}
}
logratio = calculate_metropolis_ratio_eta_local(&Lprop);
double logprior=0.0;
logprior+=normlogpdf(log_fwhh_prop, pars.log_fwhh_prior_mean, sqrt(pars.log_fwhh_prior_var));
logprior-=normlogpdf(log_fwhh_draw, pars.log_fwhh_prior_mean, sqrt(pars.log_fwhh_prior_var));
logratio+=logprior;
//logproposal
double logacceptance=log(my_rand(rng));
if(logratio>logacceptance)
{
for (int t = 0; t < pars.l; t++)
{
FTems[t].prop_accept_log_fwhh();
}
shape_accepcount=shape_accepcount+1;
L=Lprop;
log_fwhh_draw=log_fwhh_prop;
}
}
template <typename T> cl_int DWTKernel<T>::run(cl_mem in, cl_mem out, int sizeX, int sizeY, int levels){
srcMem = in;
dstMem = out;
dimX = sizeX;
dimY = sizeY;
cl_int error_code = clSetKernelArg(myKernel, 3, sizeof(cl_mem), &srcMem);
if (CL_SUCCESS != error_code)
{
LogError("Error: clSetKernelArg returned %s.\n", TranslateOpenCLError(error_code));
return error_code;
}
error_code = clSetKernelArg(myKernel, 4, sizeof(cl_mem), &dstMem);
if (CL_SUCCESS != error_code)
{
LogError("Error: clSetKernelArg returned %s.\n", TranslateOpenCLError(error_code));
return error_code;
}
dwt(sizeX, sizeY, levels);
return CL_SUCCESS;
}
int main() {
wave_object obj;
wt_object wt;
double *inp,*out,*diff;
int N, i,J;
FILE *ifp;
double temp[1200];
char *name = "db4";
obj = wave_init(name);// Initialize the wavelet
ifp = fopen(FILE_SIGNAL, "r");
i = 0;
if (!ifp) {
printf("Cannot Open File");
exit(100);
}
while (!feof(ifp)) {
fscanf(ifp, "%lf \n", &temp[i]);
i++;
}
N = 256;
inp = (double*)malloc(sizeof(double)* N);
out = (double*)malloc(sizeof(double)* N);
diff = (double*)malloc(sizeof(double)* N);
//wmean = mean(temp, N);
for (i = 0; i < N; ++i) {
inp[i] = temp[i];
//printf("%g \n",inp[i]);
}
J = 3;
wt = wt_init(obj, "dwt", N, J);// Initialize the wavelet transform object
setDWTExtension(wt, "sym");// Options are "per" and "sym". Symmetric is the default option
setWTConv(wt, "direct");
dwt(wt, inp);// Perform DWT
//DWT output can be accessed using wt->output vector. Use wt_summary to find out how to extract appx and detail coefficients
for (i = 0; i < wt->outlength; ++i) {
// printf("%g ",wt->output[i]);
}
idwt(wt, out);// Perform IDWT (if needed)
// Test Reconstruction
for (i = 0; i < wt->siglength; ++i) {
diff[i] = out[i] - inp[i];
}
printf("\n MAX %g \n", absmax(diff, wt->siglength)); // If Reconstruction succeeded then the output should be a small value.
wt_summary(wt);// Prints the full summary.
wave_free(obj);
wt_free(wt);
free(inp);
free(out);
free(diff);
return 0;
}
void ReconstructionTest()
{
wave_object obj;
wt_object wt;
double *inp,*out;
int N, i,J;
double epsilon = 1e-15;
char *type = (char*) "dwt";
N = 79926;
//N = 256;
inp = (double*)malloc(sizeof(double)* N);
out = (double*)malloc(sizeof(double)* N);
//wmean = mean(temp, N);
for (i = 0; i < N; ++i) {
inp[i] = (rand() / (double)(RAND_MAX));
}
std::vector<std::string > waveletNames;
for (unsigned int j = 0; j < 36; j++)
{
waveletNames.push_back(std::string("db") + patch::to_string(j + 1));
}
for (unsigned int j = 0; j < 17; j++)
{
waveletNames.push_back(std::string("coif") + patch::to_string(j + 1));
}
for (unsigned int j = 1; j < 20; j++)
{
waveletNames.push_back(std::string("sym") + patch::to_string(j + 1));
}
waveletNames.push_back("bior1.1");
waveletNames.push_back("bior1.3");
waveletNames.push_back("bior1.5");
waveletNames.push_back("bior2.2");
waveletNames.push_back("bior2.4");
waveletNames.push_back("bior2.6");
waveletNames.push_back("bior2.8");
waveletNames.push_back("bior3.1");
waveletNames.push_back("bior3.3");
waveletNames.push_back("bior3.5");
waveletNames.push_back("bior3.7");
waveletNames.push_back("bior3.9");
waveletNames.push_back("bior4.4");
waveletNames.push_back("bior5.5");
waveletNames.push_back("bior6.8");
waveletNames.push_back("rbior1.1");
waveletNames.push_back("rbior1.3");
waveletNames.push_back("rbior1.5");
waveletNames.push_back("rbior2.2");
waveletNames.push_back("rbior2.4");
waveletNames.push_back("rbior2.6");
waveletNames.push_back("rbior2.8");
waveletNames.push_back("rbior3.1");
waveletNames.push_back("rbior3.3");
waveletNames.push_back("rbior3.5");
waveletNames.push_back("rbior3.7");
waveletNames.push_back("rbior3.9");
waveletNames.push_back("rbior4.4");
waveletNames.push_back("rbior5.5");
waveletNames.push_back("rbior6.8");
for (unsigned int direct_fft = 0; direct_fft < 2; direct_fft++)
{
for (unsigned int sym_per = 0; sym_per < 2; sym_per++)
{
for (unsigned int j = 0; j < waveletNames.size(); j++)
{
char * name = new char[waveletNames[j].size() + 1];
memcpy(name, waveletNames[j].c_str(), waveletNames[j].size() + 1);
obj = wave_init(name);// Initialize the wavelet
for (J = 1; J < 3; J++)
{
//J = 3;
wt = wt_init(obj,(char*) "dwt", N, J);// Initialize the wavelet transform object
if (sym_per == 0)
setDWTExtension(wt, (char*) "sym");// Options are "per" and "sym". Symmetric is the default option
else
setDWTExtension(wt, (char*) "per");
if (direct_fft == 0)
setWTConv(wt, (char*) "direct");
else
setWTConv(wt, (char*) "fft");
dwt(wt, inp);// Perform DWT
idwt(wt, out);// Perform IDWT (if needed)
// Test Reconstruction
if (direct_fft == 0)
epsilon = 1e-8;
else
epsilon = 1e-10;
//BOOST_CHECK_SMALL(RMS_Error(out, inp, wt->siglength), epsilon); // If Reconstruction succeeded then the output should be a small value.
//printf("%g ",RMS_Error(out, inp, wt->siglength));
if (RMS_Error(out, inp, wt->siglength) > epsilon) {
printf("\n ERROR : DWT Reconstruction Unit Test Failed. Exiting. \n");
exit(-1);
}
wt_free(wt);
}
wave_free(obj);
delete[] name;
}
}
}
free(out);
free(inp);
}