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dftarea.cpp
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/******************************************************************************
**
** Copyright 2016 Dale Eason
** This file is part of DFTFringe
** is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation version 3 of the License
** DFTFringe is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with DFTFringe. If not, see <http://www.gnu.org/licenses/>.
****************************************************************************/
#include "dftarea.h"
#include "ui_dftarea.h"
#include "dfttools.h"
#include "vortex.h"
#include <queue>
#include "punwrap.h"
#include "zernikeprocess.h"
#include "settings2.h"
#include "myutils.h"
#include "opencv2/imgproc/imgproc.hpp"
#include "utils.h"
#include "showaliasdlg.h"
#include <QLabel>
#include <QShortcut>
#include <opencv2/core/core_c.h>
using namespace cv;
cv::Mat makeMask(CircleOutline outside, CircleOutline center, cv::Mat data,
QVector<std::vector<cv::Point> > poly){
int width = data.cols;
int height = data.rows;
double radm = ceil(outside.m_radius) + 1;
double rady = radm;
mirrorDlg &md = *mirrorDlg::get_Instance();
if (md.isEllipse())
rady = radm * md.m_verticalAxis/md.diameter;
double rado = center.m_radius;
double cx = outside.m_center.x();
double cy = outside.m_center.y();
cv::Mat mask = cv::Mat::zeros(height,width,CV_8UC1);
for (int y = 0; y < height; ++y){
for (int x = 0; x < width; ++x){
double dx = (double)(x - cx)/(radm);
double dy = (double)(y - cy)/(rady);
if (sqrt(dx * dx + dy * dy) <= 1.)
mask.at<uchar>(y,x) = 255;
}
}
cx = center.m_center.x();
cy = center.m_center.y();
if (rado > 0) {
for (int y = 0; y < height; ++y){
for (int x = 0; x < width; ++x){
double dx = (double)(x - (cx))/(rado);
double dy = (double)(y - (cy))/(rado);
if (sqrt(dx * dx + dy * dy) < 1.)
mask.at<uchar>(y,x) = 0;
}
}
}
if (poly.size()>0){
for (int n = 0; n < poly.size(); ++n){
cv::Point points[1][poly[n].size()];
for (std::size_t i = 0; i < poly[n].size(); ++i){
points[0][i] = cv::Point(poly[n][i].x, poly[n][i].y);
}
for (std::size_t j = 0; j < poly[n].size()-1; ++j){
cv::line(mask, points[0][j], points[0][j+1], cv::Scalar(0));
}
const Point* ppt[1] = { points[0]};
int npt[] = { static_cast<int>(poly[n].size()) };
fillPoly( mask, ppt, npt, 1, Scalar(0), 8 );
}
}
if (Settings2::showMask())
showData("DFT mask",mask);
return mask;
}
DFTArea *DFTArea::m_Instance = 0;
DFTArea * DFTArea::get_Instance(QWidget *parent, IgramArea *ip, DFTTools *tools, vortexDebug *vdbug){
if (m_Instance == NULL){
m_Instance = new DFTArea(parent, ip,tools,vdbug);
}
return m_Instance;
}
DFTArea::DFTArea(QWidget *mparent, IgramArea *ip, DFTTools * tools, vortexDebug *vdbug) :
QWidget(mparent),m_size(640), tools(tools),
dftSizeStr("640 X 640"), m_center_filter(10.),ui(new Ui::DFTArea),igramArea(ip),m_smooth(9.),
m_vortexDebugTool(vdbug),zoom(1.)
{
m_outlineComplete = false;
m_PSIstate = 0;
QRect rec = QGuiApplication::primaryScreen()->geometry();
m_Psidlg = new PSI_dlg(nullptr);
rec.setLeft(rec.width()/6);
rec.setTop(rec.height()/4);
rec.setWidth(rec.width()/4);
rec.setHeight(rec.height()/4);
m_Psidlg->setGeometry(rec);
connect(m_Psidlg, SIGNAL(computePhase()),this, SLOT(computePhases()));
ui->setupUi(this);
m_gamma = 2.5;
connect(tools,SIGNAL(dftChannel(const QString&)), this, SLOT(setChannel(const QString&)));
connect(tools,SIGNAL(dftSizeVal(int)), this, SLOT(dftSizeVal(int)));
connect(tools,SIGNAL(dftCenterFilter(double)), this, SLOT(dftCenterFilter(double)));
connect(tools,SIGNAL(makeSurface()), this,SLOT(makeSurface()));
connect(tools,SIGNAL(doDFT()), this,SLOT(doDFT()));
connect(tools,SIGNAL(showResized()),this, SLOT(showResizedDlg()));
QShortcut *shortcut = new QShortcut(QKeySequence(Qt::Key_Plus), this);
QObject::connect(shortcut, SIGNAL(activated()), this, SLOT(zoomPlus()));
shortcut = new QShortcut(QKeySequence(Qt::Key_Minus), this);
QObject::connect(shortcut, SIGNAL(activated()), this, SLOT(zoomMinus()));
shortcut = new QShortcut(QKeySequence(Qt::Key_F), this);
QObject::connect(shortcut, SIGNAL(activated()), this, SLOT(zoomFit()));
tools->connectTo(this);
capture = false;
QSettings set;
m_center_filter = set.value("DFT Center Filter", 10).toDouble();
qDebug() << "init center" << m_center_filter;
emit updateFilterSize(m_center_filter);
installEventFilter(this);
/*
QwtPlot *test = new QwtPlot();
QwtPlotGrid *grid = new QwtPlotGrid();
grid->attach(test);
QPolygonF points;
mirrorDlg &md = *mirrorDlg::get_Instance();
double roc = md.roc;
double diam = md.diameter;
double r3 = roc * roc * roc;
double d4 = diam * diam * diam * diam;
for (double i = 0; i < .03; i += .0001){
double z1 = -i * 384. * r3 * md.lambda * 1.E-6/(d4);
points << QPointF( -i, z1 );
}
test->setAxisTitle( test->xBottom, "Z8" );
test->setAxisTitle( test->yLeft, "Best conic" );
QwtPlotCurve *c3 = new QwtPlotCurve("Best fit Conic");
c3->setSamples(points);
c3->attach(test);
test->resize(800,800);
test->show();
*/
}
#include <QWheelEvent>
void DFTArea::zoomPlus(){
zoom *= 1.1;
update();
}
void DFTArea::zoomMinus(){
zoom /= 1.1;
update();
}
void DFTArea::zoomFit(){
zoom = double(this->size().height())/magIImage.size().height();
update();
}
bool DFTArea::eventFilter(QObject * /*obj*/, QEvent *event) {
if (event->type() == QEvent::Wheel) {
QWheelEvent *w = (QWheelEvent *)event;
if (w->angleDelta().y() > 0){
zoom *= 1.1;
}
else {
zoom /= 1.1;
}
if (zoom < 1.)
zoom = 1.;
//magIImage = magIImage.scaled(magIImage.width() * scale, magIImage.height() * scale);
update();
// Your implementation.
// You can't use QWheelEvent, as Graphicscene works with its own events...
//handleWheelOnGraphicsScene(static_cast<QGraphicsSceneWheelEvent*> (event));
// Don't propagate
return true;
}
// Other events should propagate
return false;
}
DFTArea::~DFTArea()
{
delete m_Psidlg;
delete ui;
}
void DFTArea::setChannel(const QString& val){
channel = val;
}
void DFTArea::dftCenterFilter(double v){
m_center_filter = v;
QSettings set;
set.setValue("DFT Center Filter", v);
emit updateFilterSize(v);
update();
}
void DFTArea::dftSizeVal(int val){
m_size = val;
}
void DFTArea::dftSizeChanged(const QString& val){
dftSizeStr = val;
if (val == "same as Igram"){
int newVal = igramArea->igramGray.width();
emit setDftSizeVal(newVal);
}
if (val == "640 x 640") {
int newVal = 640;
emit setDftSizeVal(newVal);
}
}
cv::Mat DFTArea::grayComplexMatfromImage(QImage &img){
// create an roi that is a square around the outline.
double centerX = igramArea->m_outside.m_center.x();
double centerY = igramArea->m_outside.m_center.y();
mirrorDlg &md = *mirrorDlg::get_Instance();
double pixelsPermm =(igramArea->m_outside.m_radius/(md.diameter/2.));
double reduction = md.aperatureReduction * pixelsPermm;
if (md.m_aperatureReductionEnabled == false)
reduction = 0;
double rad = igramArea->m_outside.m_radius - reduction;
double rady = rad;
if (md.isEllipse()){
rady = rady * md.m_verticalAxis/ md.diameter;
}
double left = centerX - rad;
double top = centerY - rad;
std::vector<Mat > bgr_planes;
top = std::max(top,0.);
left = std::max(left,0.);
int width = 2. * (rad);
int height = width;
width = min(width, img.width());
height = min(height, img.height());
// new center because of crop
double xCenterShift = centerX - left;
double yCenterShift = centerY - top;
cv::Mat iMat(img.height(), img.width(), CV_8UC3, img.bits(), img.bytesPerLine());
cv::Mat tmp = iMat.clone();
cv::Mat roi = iMat(cv::Rect((int)left,(int)top,(int)width,(int)height)).clone();
double centerDx = centerX - igramArea->m_center.m_center.x();
double centerDy = centerY - igramArea->m_center.m_center.y();
roi.convertTo(roi,CV_32FC3);
QSettings set;
int dftSize = set.value("DFTSize", 640).toInt();
double scaleFactor = (double)dftSize/roi.cols;
m_outside = CircleOutline(QPointF(xCenterShift,yCenterShift), rad);
m_center = CircleOutline(QPointF(xCenterShift - centerDx, yCenterShift - centerDy),
igramArea->m_center.m_radius);
//scaleFactor = 1;
if (scaleFactor < 1.){
cv::resize(roi,roi, cv::Size(0,0), scaleFactor, scaleFactor,INTER_AREA);
double roicx = (roi.cols-1)/2.;
double roicy = (roi.rows-1)/2.;
m_outside = CircleOutline(QPointF(roicx,roicy),roicx);
m_center = CircleOutline(QPointF((roicx - centerDx * scaleFactor), (roicy - centerDy * scaleFactor)),
m_center.m_radius * scaleFactor);
}
else {
scaleFactor = 1.;
}
m_poly.clear();
for (int n = 0; n < igramArea->m_polygons.size(); ++n){
m_poly.append(std::vector< cv::Point>());
for (unsigned int i = 0; i < igramArea->m_polygons[n].size(); ++i){
int x = round((igramArea->m_polygons[n][i].x - left) * scaleFactor);
int y = round((igramArea->m_polygons[n][i].y - top) * scaleFactor);
// make sure x and y values of regions are inside our matrix
if (x < 0)
x=0;
if (x >= roi.cols)
x=roi.cols-1;
if (y < 0)
y=0;
if (y >= roi.rows)
y = roi.rows-1;
m_poly.back().push_back(cv::Point(x,y));
}
}
// split image into three color planes
split( roi, bgr_planes );
cv::Scalar mean;
mean = cv::mean(bgr_planes[0]);
n = 0;
cv::Mat padded = bgr_planes[0].clone();
padded = padded - mean[0];
// disabled adding optomizing DFT boarder.
Mat planes[] = {Mat_<float>(padded), Mat::zeros(padded.size(), CV_32F)};
m_mask = makeMask(m_outside,m_center,*planes, m_poly);
if (Settings2::showMask())
showData("Mask", m_mask);
cv::Mat tmpMask;
planes[0].copyTo(tmpMask,m_mask); // Convert image to binary
planes[0] = tmpMask.clone();
mean = cv::mean(planes[0],m_mask);
planes[0] -= mean;
Mat complexI;
merge(planes, 2, complexI); // Add to the expanded another plane with zeros
if (scaleFactor == 1.){
tools->imageSize(QString("DFT Size will be %1").arg(width));
}
else
tools->imageSize(QString("Image is resized from %1 to %2 pixels").arg(width).arg(complexI.cols));
return complexI;
}
//swap quadrants
void shiftDFT(cv::Mat &magI){
// crop the spectrum, if it has an odd number of rows or columns
magI = magI(Rect(0, 0, magI.cols & -2, magI.rows & -2));
// rearrange the quadrants of Fourier image so that the origin is at the image center
int cx = magI.cols/2;
int cy = magI.rows/2;
Mat q0(magI, Rect(0, 0, cx, cy)); // Top-Left - Create a ROI per quadrant
Mat q1(magI, Rect(cx, 0, cx, cy)); // Top-Right
Mat q2(magI, Rect(0, cy, cx, cy)); // Bottom-Left
Mat q3(magI, Rect(cx, cy, cx, cy)); // Bottom-Right
Mat tmp; // swap quadrants (Top-Left with Bottom-Right)
q0.copyTo(tmp);
q3.copyTo(q0);
tmp.copyTo(q3);
q1.copyTo(tmp); // swap quadrant (Top-Right with Bottom-Left)
q2.copyTo(q1);
tmp.copyTo(q2);
}
void showData(const std::string& txt, cv::Mat mat, bool useLog){
cv::Mat tmp = mat.clone();
if (useLog){
tmp = mat+1;
log(tmp, tmp);
}
cv::namedWindow(txt, WINDOW_NORMAL);
normalize(tmp, tmp,0,255,CV_MINMAX);
tmp.convertTo(tmp,CV_8U);
cvtColor(tmp,tmp, cv::COLOR_GRAY2RGB);
cv::imshow(txt, tmp);
cv::waitKey(1);
}
QImage showMag(cv::Mat complexI, bool show, const char* title, bool doLog, double gamma){
// compute the magnitude and switch to logarithmic scale
// => log(1 + sqrt(Re(DFT(I))^2 + Im(DFT(I))^2))
Mat planes[2];
split(complexI, planes); // planes[0] = Re(DFT(I), planes[1] = Im(DFT(I))
magnitude(planes[0], planes[1], planes[0]);// planes[0] = magnitude
Mat magI = planes[0];
double mmin;
double mmax;
minMaxIdx(magI, &mmin,&mmax);
magI-= mmin;
if (doLog)
log((magI+0.1), magI);
if (gamma != 0.){
cv::pow(magI,gamma,magI);
}
normalize(magI, magI,0,255,CV_MINMAX, CV_8U);
minMaxIdx(magI, &mmin,&mmax);
cv::Mat tmp = magI.clone();
cv::waitKey(1);
cvtColor(magI,magI, cv::COLOR_GRAY2RGB);
if (show){
imshow(title, magI);
waitKey(1);
}
return QImage((uchar*)magI.data, magI.cols, magI.rows, magI.step, QImage::Format_RGB888).copy();
}
RNG rng(12345);
void DFTArea::doDFT(){
QApplication::setOverrideCursor(Qt::WaitCursor);
QImage img = igramArea->igramGray;
cv::Mat complexI = grayComplexMatfromImage(img);
cv::Mat planes[2];
split(complexI,planes);
cv::Scalar mean,std;
cv::meanStdDev(planes[0],mean,std, m_mask);
//qDebug() << "Mean " << mean[0];
planes[0] -= mean[0];
//cv::imshow("input", planes[0].clone());
//cv::waitKey(1);
cv::merge(planes,2,complexI);
dft(complexI, complexI);
cv::Mat realImage;
dft(complexI,realImage,DFT_INVERSE);
split(realImage,planes);
shiftDFT(complexI);
m_dft.release();
m_dft = complexI/complexI.size().area();
magIImage = showMag(complexI,false,"", true, m_gamma);
magIImage = magIImage.scaled(magIImage.width() , magIImage.height() );
setMinimumSize(magIImage.size());
emit selectDFTTab();
update();
zoom = double(this->size().height())/magIImage.size().height();
QSettings set;
if (set.value("showDFTHelp", true).toBool()){
if (QMessageBox::Yes == QMessageBox::question(0,"Did you know you can use the Scroll wheel to zoom this image?.","Select yes to not display this message again."))
{
set.setValue("showDFTHelp",false);
}
}
//if (Settings2::showDFT())
//emit dftReady(magIImage); //Creates a thumbnail dft area
QApplication::restoreOverrideCursor();
}
void DFTArea::gamma(int i){
double v = 1. + 5. * (double)i/99.;
m_gamma = v;
doDFT();
}
void DFTArea::paintEvent(QPaintEvent *)
{
QPainter painter(this);
QPixmap rp = QPixmap::fromImage(magIImage);
QPainter dftpainter(&rp);
dftpainter.drawImage(QPoint(0,0),magIImage);
dftpainter.setBrush(QColor(0,0,100,50));
int centerx = (magIImage.width()+1)/2;
int centery = (magIImage.height()+1)/2;
dftpainter.drawEllipse(QPointF(centerx, centery),
m_center_filter, m_center_filter);
if (m_center_filter > 0.) {
double val = (double)m_center_filter;
val *= val;
int last = 0;
for (int i = 0; i < magIImage.width()-1; ++i){
double rho = i -magIImage.width()/2;
rho *= rho;
double a =1-exp (-rho/(.25 * val));
int y = magIImage.height()/2 + 50 -a * 50;
dftpainter.drawLine(i,last,i+1,y);
last = y;
}
}
int xoffset = -centerx * (zoom -1) +(width() - magIImage.width() )/2;
int yoffset = -centery * (zoom -1) + (height() - magIImage.height())/2;
painter.drawPixmap(xoffset,yoffset,rp.scaled( zoom * rp.width(), zoom * rp.height()));
}
#define WRAP(x) (((x) > 0.5) ? ((x)-1.0) : (((x) <= -0.5) ? ((x)+1.0) : (x)))
#define WRAPPI(x) (((x) > M_PI) ? ((x)-2*M_PI) : (((x) <= -M_PI) ? ((x)+2*M_PI) : (x)))
#define BORDER 0x1
#define UNWRAPPED 0x2
double *g_qmap;
class comp_qual {
public:
int operator() (const int &p1, const int &p2) {
return (g_qmap[p1] < g_qmap[p2]);
}
};
#define unwrap_and_insert(ndx, val) \
{ \
unwrapped[ndx] = val; \
flags[ndx] |= UNWRAPPED; \
path[ndx] = order++; \
todo.push (ndx); \
}
// Quality-guided path following phase unwrapper.
void qg_path_follower_vortex (Size size, double *phase, double *qmap,
double *unwrapped, double *path)
{
std::priority_queue<int, std::vector<int>, comp_qual> todo;
int total = size.area();
int order = 0;
g_qmap = qmap;
// Initialize the flags array to mark the border.
char *flags = new char[total];
for (int k=0; k < total; ++k)
flags[k] = phase[k] == 0.0;
// Repeat while still elements to unwrap (handles disjoint regions).
while (1) {
// Find the point of highest quality.
double m = -HUGE_VAL;
int mndx;
for (int k=0; k < total; ++k)
if (qmap[k] > m && ! flags[k])
m = qmap[mndx = k];
if (m == -HUGE_VAL) break;
// Unwrap the first point.
unwrap_and_insert (mndx, phase[mndx]);
// Unwrap the rest of the points in order of quality.
while (!todo.empty()) {
int ndx = todo.top();
todo.pop();
int x = ndx%size.width;
int y = ndx/size.width;
double val = unwrapped[ndx];
if (x > 0 && ! flags[ndx-1])
unwrap_and_insert (ndx-1, val+WRAP(phase[ndx-1]-phase[ndx]));
if (x < size.width-1 && ! flags[ndx+1])
unwrap_and_insert (ndx+1, val+WRAP(phase[ndx+1]-phase[ndx]));
if (y > 0 && ! flags[ndx-size.width])
unwrap_and_insert (ndx-size.width, val+WRAP(phase[ndx-size.width]-phase[ndx]));
if (y < size.height-1 && ! flags[ndx+size.width])
unwrap_and_insert (ndx+size.width, val+WRAP(phase[ndx+size.width]-phase[ndx]));
}
}
delete[] flags;
}
cv::Mat DFTArea::vortex(QImage &img, double low)
{
try
{
showmem("start Vortex");
cv::Mat image = grayComplexMatfromImage(img);
// convert from 32 to 64 bit double values
cv::Mat imageMat;
image.convertTo(imageMat, numType);
image.release();
int xsize = imageMat.cols;
int ysize = imageMat.rows;
int size = xsize*ysize;
double smooth = .01 * m_vortexDebugTool->m_smooth * xsize/2.;
double *dir = new double[size];
double *path = new double[size];
double *qmap = new double[size];
double *orient = new double[size];
//double *fdom[2]; fdom[0] = new double[size]; fdom[1] = new double[size];
double *d1[2]; d1[0] = new double[size]; d1[1] = new double[size];
double *d2[2]; d2[0] = new double [size]; d2[1] = new double [size];
double *spiralRe = new double [size];
double *spiralIm = new double[size];
if (m_vortexDebugTool->m_showInput){
double *imReTmp = new double[size];
{
cv::Mat tmp = cv::Mat(ysize,xsize,numType, imReTmp);
cv::Mat xx;
tmp.convertTo(xx,CV_32F);
cv::imshow("input", xx);
cv::waitKey(1);
} // delete imReTmp after tmp is destructed by end of scope
delete[] imReTmp;
}
cv::Mat fdomMat;
cv::Mat fdomPlanes[2];
dft(imageMat,fdomMat);
split(fdomMat, fdomPlanes);
// Create rho and theta arrays for later use.
int *ix = new int[xsize];
int *iy = new int[ysize];
for (int i=0; i<=xsize/2; ++i) ix[i] = -i;
for (int i=1; i<=xsize/2; ++i) ix[xsize-i] = i;
for (int i=0; i<=ysize/2; ++i) iy[i] = -i;
for (int i=1; i<=ysize/2; ++i) iy[ysize-i] = i;
double *rho = new double[size];
double *theta = new double[size];
for (int j=0; j<ysize; ++j) {
int base = j*xsize;
for (int i=0; i<xsize; ++i) {
rho[base+i] = sqrt (ix[i]*ix[i] + iy[j]*iy[j]);
theta[base+i] = atan2 (iy[j], ix[i]);
}
}
delete[] ix;
delete[] iy;
// High-pass filter the Fourier domain to remove the background.
double *planes[2] = {fdomPlanes[0].ptr<double>(0), fdomPlanes[1].ptr<double>(0)};
if (low > 0)
{
for (int i=0; i<size; ++i) {
double a = 1.0 - exp (-(rho[i]*rho[i])/(low*low));
planes[0][i] *= a;
planes[1][i] *= a;
}
}
merge(fdomPlanes,2, fdomMat);
if (m_vortexDebugTool->m_showFdom){
showMag(fdomMat.clone(),true,"fdom");
}
// Take the inverse Fourier transform to get the cleaned igram.
//p = fftw_plan_dft_2d (ysize, xsize, fdom, im, FFTW_BACKWARD, FFTW_ESTIMATE);
//fftw_execute (p);
dft(fdomMat, imageMat, DFT_INVERSE);
cv::Mat imPlanes[2];
split(imageMat,imPlanes);
imPlanes[0]/= size;
cv::Mat tmp;
imPlanes[0].copyTo(tmp, m_mask);
imPlanes[0] = tmp.clone();
tmp.release();
// Normalize the image by removing the exterior and centering values.
cv::Scalar mean,std;
cv::meanStdDev(imPlanes[0],mean,std, m_mask);
double sum = 0;
double *q = imPlanes[0].ptr<double>(0);
merge(imPlanes,2, imageMat);
dft(imageMat,fdomMat);
imageMat.release();
double dc = fdomMat.at<double>(0,0,0);
dc/=size;
int count = 0;
bool *bp = m_mask.ptr<bool>(0);
for (int i = 0; i < size; ++i){
if (bp[i]){
sum += q[i];
if (q[i] != 0.0)
++count;
}
}
double m2 = sum/count;
imPlanes[0] -= m2;
imPlanes[1] *= 0.;
double *imRe = (double *)(imPlanes[0].data);
if (0) { //(0 == strcmp (what, "im2")) {
showData("im border added", imPlanes[0].clone());
}
// Calculate the intermediate values d1 and d2.
for (int i=0; i<size; ++i) {
spiralRe[i] = cos(theta[i]);
spiralIm[i] = sin(theta[i]);
}
delete[] theta;
split(fdomMat,fdomPlanes);
double *fdomRe = (double*)(fdomPlanes[0].data);
double *fdomIm = (double *)(fdomPlanes[1].data);
for (int i=0; i<size; ++i) {
double re = fdomRe[i]*spiralRe[i] - fdomIm[i]*spiralIm[i];
double im = fdomRe[i]*spiralIm[i] + fdomIm[i]*spiralRe[i];
fdomRe[i] = re;
fdomIm[i] = im;
}
merge(fdomPlanes,2,fdomMat);
cv::Mat d1Mat;
dft(fdomMat,d1Mat, DFT_INVERSE);
//p = fftw_plan_dft_2d (ysize, xsize, fdomMat, d1Mat, FFTW_BACKWARD, FFTW_ESTIMATE);
//fftw_execute (p);
d1Mat/= size;
if (0){ //(0 == strcmp (what, "d1")) {
showMag(d1Mat.clone(), true, "D1");
}
for (int i=0; i<size; ++i) {
double re = fdomRe[i]*spiralRe[i] - fdomIm[i]*spiralIm[i];
double im = fdomRe[i]*spiralIm[i] + fdomIm[i]*spiralRe[i];
fdomRe[i] = re;
fdomIm[i] = im;
}
cv::Mat d2Mat;
merge(fdomPlanes,2, fdomMat);
dft(fdomMat,d2Mat,DFT_INVERSE);
//p = fftw_plan_dft_2d (ysize, xsize, fdom, d2, FFTW_BACKWARD, FFTW_ESTIMATE);
//fftw_execute (p);
d2Mat/= size;
if (0){//(0 == strcmp (what, "d2")) {
showMag(d2Mat.clone(),true, "D2");
}
cv::Mat rMat;
cv::Mat rPlanes[2] = {cv::Mat::zeros(Size(xsize,ysize),numType), cv::Mat::zeros(Size(xsize,ysize),numType)};
cv::Mat d1Planes[2];
cv::Mat d2Planes[2];
split(d1Mat,d1Planes);
d1Mat.release();
split(d2Mat,d2Planes);
d2Mat.release();
double *d1Re = (double *)(d1Planes[0].data);
double *d1Im = (double *)(d1Planes[1].data);
double *d2Re = (double *)(d2Planes[0].data);
double *d2Im = (double *)(d2Planes[1].data);
double *rRe = (double *)(rPlanes[0].data);
double *rIm = (double *)(rPlanes[1].data);
// Calculate the orientation and the quality map for unwrapping.
for (int i=0; i<size; ++i) {
rRe[i] = d1Re[i]*d1Re[i] - d1Im[i]*d1Im[i] - imRe[i]*d2Re[i];
rIm[i] = d1Re[i]*d1Im[i] + d1Im[i]*d1Re[i] - imRe[i]*d2Im[i];
}
//smooth = 0;
if (smooth > 0) {
merge(rPlanes,2, rMat);
cv::Mat temp;
cv::Mat tempPlanes[2];
// Low-pass filter r to smooth it.
dft(rMat,temp);
//p = fftw_plan_dft_2d (ysize, xsize, r, temp, FFTW_FORWARD, FFTW_ESTIMATE);
//fftw_execute (p);
split(temp,tempPlanes);
double *tempRe = (double *)(tempPlanes[0].data);
double *tempIm = (double *)(tempPlanes[1].data);
for (int i=0; i<size; ++i) {
double a = exp (-(rho[i]*rho[i])/(smooth * smooth));
tempRe[i] *= a;
tempIm[i] *= a;
}
delete[] rho;
merge(tempPlanes,2,temp);
tempPlanes[0].release();
tempPlanes[1].release();
dft(temp,rMat,DFT_INVERSE);
temp.release();
//p = fftw_plan_dft_2d (ysize, xsize, temp, r, FFTW_BACKWARD, FFTW_ESTIMATE);
//fftw_execute (p);
rMat/= size;
split(rMat,rPlanes);
rMat.release();
}
for (int i=0; i<size; ++i)
orient[i] = atan2 (rIm[i], rRe[i]);
if (m_vortexDebugTool->m_showOrientation){
cv::Mat orm(ysize,xsize,numType,orient);
showData("orient", orm.clone());
}
for (int i=0; i<size; ++i) {
qmap[i] = sqrt (rRe[i]*rRe[i] + rIm[i]*rIm[i]);
orient[i] /= (2.*M_PI); // put in range -.5..5 for unwrap
}
// Unwrap the orientation to get the direction.
qg_path_follower_vortex (Size(xsize,ysize), orient, qmap, dir, path);
for (int i=0; i<size; ++i)
dir[i] = WRAPPI(dir[i]*M_PI);
// Calculate the quadrature.
imPlanes[1] = cv::Mat::zeros(Size(xsize,ysize), numType);
double *imIm = (double *)(imPlanes[1].data);
for (int i=0; i<size; ++i)
imIm[i] = d1Re[i]*cos(-dir[i]) - d1Im[i]*sin(-dir[i]);
// Display the isolated side lobe.
if (m_vortexDebugTool->m_showFdom3){
cv::Mat sideLobe;
merge(imPlanes,2,sideLobe);
shiftDFT(sideLobe);
dft(sideLobe,fdomMat);
shiftDFT(fdomMat);\
showMag(fdomMat, true, "fdom3");
sideLobe.release();
}
cv::Mat phase(Size(xsize,ysize), numType);
double *p = (double *)(phase.data);
for (int i=0; i<size; ++i) {
p[i] = atan2 (imIm[i], imRe[i]);
}
imPlanes[0].release();
imPlanes[1].release();
// mask to only the mirror portion.
phase.copyTo(tmp, m_mask);
phase = tmp.clone();
if (m_vortexDebugTool->m_showWrapped){
cv::Mat tt = phase.clone();
cv::normalize(tt,tt,0.f,1.f,CV_MINMAX);
cv::imshow(" wrapped ", tt);
cv::waitKey(1);
}
delete[] qmap;
delete[] orient;
delete[] d1[0];
delete[] d1[1];
delete[] d2[0];
delete[] d2[1];
delete[] spiralRe;
delete[] spiralIm;
delete[] dir;
delete[] path;
tmp.release();
return phase;
}
catch (std::bad_alloc &e){
showmem();
qDebug() << QString("Error %1").arg(e.what());
//cv::Mat phase = cv::Mat::zeros(Size(100,100), numType);
return cv::Mat();
}
catch ( std::exception &e){
qDebug() << QString(" some Error %1").arg(e.what());
cv::Mat phase = cv::Mat::zeros(Size(0,0), numType);
return phase;
}
catch (...){
qDebug() << QString(" Unknown error ");
cv::Mat phase = cv::Mat::zeros(Size(100,100), numType);
return phase;
}
}
cv::Mat_<double> subtractPlane(cv::Mat_<double> phase, cv::Mat_<bool> mask){
cv::Mat_<double> coeff(3,1);
cv::Mat_<double> X(phase.rows * phase.cols,3);
cv::Mat_<double> Z(phase.rows * phase.cols,1);
int ndx = 0;
for (int y = 0; y < phase.rows; ++y){
for (int x = 0; x < phase.cols; ++x){
if (mask(y,x)){
Z(ndx) = phase(y,x);
X(ndx,0) = x;
X(ndx,1) = y;
X(ndx++,2) = 1.;
}
}
}
cv::solve(X,Z,coeff,CV_SVD);
// plane generation, Z = Ax + By + C
// distance calculation d = Ax + By - z + C / sqrt(A^2 + B^2 + C^2)
cv::Mat_<double> newPhase(phase.size());
for (int y = 0; y < phase.rows; ++y){
for (int x = 0; x < phase.cols; ++x){
int b = (int)mask(y,x);
if (b == 0 ){
continue;
}
double val = x * coeff(0) + y * coeff(1) + coeff(2) - phase(y,x);
double z = val/sqrt(coeff(0) * coeff(0) + coeff(1) * coeff(1) + 1);
newPhase(y,x) = z;
}
}
return newPhase;
}
// make a surface from the image using DFT and vortex transfroms.
void DFTArea::makeSurface(){
if (!tools->wasPressed)
return;
MainWindow::me->m_outlinePlots->hide();
if (igramArea->igramGray.isNull()){
QMessageBox::warning(0,"warning","First load an interferogram and circle the mirror.");
return;
}
QApplication::setOverrideCursor(Qt::WaitCursor);
tools->wasPressed = false;
if (Settings2::getInstance()->m_igram->m_autoSaveOutline){
igramArea->writeOutlines(igramArea->makeOutlineName()); // save outlines including center filter
}
cv::Mat phase;
try {
phase = vortex(igramArea->igramGray, m_center_filter);
}
catch (std::exception const& e){