Segmentation now running on sub-components, FuzzyClustering added

The segmentation now takes considerably less memory and can run on larger images.

(Optional) fuzzy clustering of seedpoints per component reduces over-segmentation.

detectionview.py

@@ -312,6 +312,7 @@ class ParticleDetectionView(QtWidgets.QWidget):
         self.showseedpoints.stateChanged.connect(self.imglabel.changeSeedDisplay)
         self.showseedpoints.setChecked(True)
         self.setImageCenter()
+        
         group = QtWidgets.QGroupBox("Detection settings", self)
         grid = QtWidgets.QGridLayout()
         self.parameters = []
@@ -327,6 +328,7 @@ class ParticleDetectionView(QtWidgets.QWidget):
                 colstretch = 2
             if p.dtype == np.bool:
                 paramui = QtWidgets.QCheckBox(p.helptext, self)
+                paramui.stateChanged.connect(self.autoUpdateIfDesired)
                 paramui.setChecked(p.value)
                 valuefunc = makeValueLambda(paramui.isChecked)
                 colstretch = 2
@@ -346,6 +348,7 @@ class ParticleDetectionView(QtWidgets.QWidget):
                 paramui.setSingleStep(p.stepsize)
                 paramui.setValue(p.value)
                 paramui.setMinimumWidth(70)
+                paramui.valueChanged.connect(self.autoUpdateIfDesired)
                 valuefunc = makeValueLambda(paramui.value)
             elif p.dtype is None:
                 label = QtWidgets.QLabel(p.helptext, self)
@@ -409,7 +412,7 @@ class ParticleDetectionView(QtWidgets.QWidget):
         self.slider.setOrientation(QtCore.Qt.Horizontal)
         self.slider.sliderMoved.connect(self.imglabel.resetAlpha)
         vbox.addWidget(self.slider)
-
+        
         self.autoUpdateCheckBox = QtWidgets.QCheckBox('Auto-update detection')
         self.autoUpdateCheckBox.setMaximumWidth(200)
         self.autoUpdateCheckBox.setChecked(True)
@@ -538,9 +541,15 @@ class ParticleDetectionView(QtWidgets.QWidget):
         if self.drag:
             self.lastcenter = self.lastmove
         self.drag = False
-        if self.autoUpdateCheckBox.isChecked():
-            self.detectShow(None)
-        
+        self.autoUpdateIfDesired()
+    
+    def autoUpdateIfDesired(self):
+        try:
+            if self.autoUpdateCheckBox.isChecked():
+                self.detectShow(None)
+        except:   #the method is already called when automatically setting default parameters, which causes various errors because initialization is not yet finished...
+            pass
+    
     def setDataSet(self, ds):
         self.dataset = ds
         self.updateImageSeeds()