gistfile1.txt

    def findShaftTransition(self,img,left_guess,right_guess,top_cutoff):
        """
        Walk the line on the shaft find where it starts to bulge out
        """
        def transformFromROI(roi, points):
            return np.array([(p[0] + roi[0], p[1] + roi[1]) for p in points])
            
        
        right_guess = sorted(right_guess, key = lambda l: l[1]) #make sure it's bottom, top
        roi_delta = 50
        right_roi = [right_guess[0][0] - roi_delta, top_cutoff, roi_delta * 2, img.height]
        right_crop = img.crop(*right_roi)
        
        edge_locations = np.where(right_crop.getGrayNumpy() > 127)
        right_points = transformFromROI(right_roi, zip(*edge_locations))
        
        rhs = np.sort(right_points[right_points[:,0] == right_guess[0][0]], axis = 1)[0]