def qc_background_regions(intensity_imp, bg_rois):
"""allow the user to view and correct automatically-determined background regions"""
imp = Duplicator().run(intensity_imp);
imp.setTitle("Background region QC");
imp.show();
imp.setPosition(1);
autoset_zoom(imp);
imp.setRoi(bg_rois[0]);
IJ.setTool("freehand");
notOK = True;
while notOK:
listener = UpdateRoiImageListener(bg_rois, is_area=True);
imp.addImageListener(listener);
dialog = NonBlockingGenericDialog("Background region quality control");
dialog.enableYesNoCancel("Continue", "Use this region for all t");
dialog.setCancelLabel("Cancel analysis");
dialog.addMessage("Please redraw background regions as necessary...")
dialog.showDialog();
if dialog.wasCanceled():
raise KeyboardInterrupt("Run canceled");
elif not(dialog.wasOKed()):
this_roi = imp.getRoi();
bg_rois = [this_roi for _ in listener.getRoiList()];
imp.removeImageListener(listener);
else:
last_roi = imp.getRoi();
qcd_bg_rois = listener.getRoiList();
if imp.getNFrames() > imp.getNSlices():
qcd_bg_rois[imp.getT() - 1] = last_roi;
else:
qcd_bg_rois[imp.getZ() - 1] = last_roi;
notOK = False;
imp.removeImageListener(listener);
imp.changes = False;
imp.close();
return qcd_bg_rois;
