'**SUMMARY**
Returns the average color within the circle.
**RETURNS**
Returns an RGB triplet that corresponds to the mean color of the feature.
**EXAMPLE**
>>> img = Image("lenna")
>>> c = img.findCircle()
>>> c[-1].meanColor()'

def meanColor(self):

    if (self.avgColor is None):
        mask = self.image.getEmpty(1)
        cv.Zero(mask)
        cv.Circle(mask, (self.x, self.y), self.r, color=(255, 255, 255), thickness=(-1))
        temp = cv.Avg(self.image.getBitmap(), mask)
        self.avgColor = (temp[0], temp[1], temp[2])
    return self.avgColor
