def curve(self, image, width=4, number=6, color=None):
dx, height = image.size
dx /= number
path = [(dx * i, random.randint(0, height))
for i in xrange(1, number)]
bcoefs = self._bezier.make_bezier(number - 1)
points = []
for coefs in bcoefs:
points.append(tuple(sum([coef * p for coef, p in zip(coefs, ps)])
for ps in zip(*path)))
Draw(image).line(points, fill=color if color else self._color, width=width)
return image
def noise(self, image, number=50, level=2, color=None):
width, height = image.size
dx = width / 10
width -= dx
dy = height / 10
height -= dy
draw = Draw(image)
for i in xrange(number):
x = int(random.uniform(dx, width))
y = int(random.uniform(dy, height))
draw.line(((x, y), (x + level, y)), fill=color if color else self._color, width=level)
return image