我是python的新手,正在尝试使用python将图像划分为'n'个不同的多边形。我的目标是将图像转换为n个随机多边形图像。我尝试了Voronoi算法,但是有点混乱。我真的很感谢您的帮助。其他任何细分方法等
我以前的代码:
import random
import matplotlib.pyplot as plt
import numpy as np
from scipy.spatial import Voronoi, voronoi_plot_2d
img = plt.imread("abc.jpg")
fig, ax = plt.subplots()
ax.imshow(img)
def points(radius,rangeX,rangeY,qty):
deltas = set()
for x in range(-radius, radius+1):
for y in range(-radius, radius+1):
if x*x + y*y <= radius*radius:
deltas.add((x,y))
randPoints = []
excluded = set()
i = 0
while i<qty:
x = random.randrange(*rangeX)
y = random.randrange(*rangeY)
if (x,y) in excluded: continue
randPoints.append((x,y))
i += 1
excluded.update((x+dx, y+dy) for (dx,dy) in deltas)
return randPoints
def plot1(randPoints,fig):
points = np.array(randPoints)
vor = Voronoi(points)
print vor.vertices
voronoi_plot_2d(vor,ax = fig.gca())
#plt.savefig('abc.png')
plt.show()
radius = 20
rangeX = (0, 960)
rangeY = (0, 480)
qty = 9
points = points(radius, rangeX, rangeY, qty)
plot1(points,fig)
这是针对n = 9,我将不胜感激。