parameterLayout->addWidget(thresholdLabel, 0, 0);
threshold = new QSpinBox(this);
threshold->setValue(8);
parameterLayout->addWidget(threshold, 1, 0);
parameterLayout->addWidget(thresholdLabel, 0, 0);
threshold = new QSpinBox(this);
threshold->setValue(8);
parameterLayout->addWidget(threshold, 1, 0);