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rework on slicing and thresholding

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This commit is contained in:
Pavol Rusnak 2011-10-21 21:08:39 +02:00
parent 8039ff529a
commit bc839e5d7c
5 changed files with 75 additions and 67 deletions
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37
qt/mainwindow.cpp
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@ -4,16 +4,12 @@
#include <qdebug.h>
#include <QMessageBox>
#define BLACK 0xFF000000
#define RED 0xFFFF0000
#define WHITE 0xFFFFFFFF
#define BLUE 0xFF0000FF
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
ui->graphicsView->setScene(&scene);
}
MainWindow::~MainWindow()
@ -27,12 +23,11 @@ void MainWindow::on_pushLoad_clicked()
if (filename.isNull()) return;
QFileInfo pathInfo(filename);
if (!vdata.load(pathInfo.path(), pathInfo.fileName())) {
QMessageBox("Error", "Error loading data");
qDebug() << "Error loading data";
} else {
ui->sliderPosition->setMaximum(vdata.getDimZ());
ui->sliderPosition->setMaximum(vdata.getDimZ()-1);
ui->sliderPosition->setValue(vdata.getDimZ()/2);
}
}
/*
@ -134,7 +129,31 @@ void MainWindow::floodfill(QImage &img)
void MainWindow::on_sliderPosition_valueChanged(int value)
{
QPixmap pixmap;
if (ui->checkThreshold->checkState() != Qt::Unchecked) {
int threshold = ui->sliderThreshold->value();
QImage *img = new QImage(*vdata.getSlice(value));
for (int x = 0; x < img->width(); ++x) {
for (int y = 0; y < img->height(); ++y) {
img->setPixel(x,y, ((img->pixel(x,y) & 0xFF) > threshold) ? 255 : 0);
}
}
pixmap.convertFromImage(*img);
delete img;
} else {
pixmap.convertFromImage(*vdata.getSlice(value));
}
scene.clear();
pixmap.convertFromImage(image);
scene.addPixmap(pixmap);
}
void MainWindow::on_sliderThreshold_valueChanged(int value)
{
if (ui->checkThreshold->checkState() != Qt::Unchecked) {
on_sliderPosition_valueChanged(ui->sliderPosition->value());
}
}
void MainWindow::on_checkThreshold_clicked()
{
on_sliderPosition_valueChanged(ui->sliderPosition->value());
}