def __init__(self, thresholdOperation=None):
        self.mNBins = 9
        self.mBlobMaker = BlobMaker()
        self.mThresholdOpeation = thresholdOperation
The threshold operation is a function of the form
dataset/ETHPy150Open sightmachine/SimpleCV/SimpleCV/Features/MorphologyFeatureExtractor.py/MorphologyFeatureExtractor.__init__