python马赛克程序mozaic.py
"""
马赛克效果测试程序.py
mozaic.py
"""
import numpy as np
from PIL import Image
def mozaic(im,k):
k = 1/k
w,h = im.size
new_w,new_h = int(w*k),int(h*k)
new_w = max(1,new_w)
new_h = max(1,new_h)
rows = h//new_h # 行数
cols = w//new_w # 列数
if cols>1:
im_small = im.resize((new_w,new_h))# 小图像
im_small = np.array(im_small)
# 水平连接
arrh = np.hstack((im_small, im_small))
for _ in range(cols-2):
arrh = np.hstack((arrh, im_small))
arrv = np.vstack((arrh, arrh))
for _ in range(rows-2):
arrv = np.vstack((arrv, arrh))
return Image.fromarray(arrv)
else:
return im
mozaic(Image.open("c:/nvtaiji.png"),10).save('c:/马赛克.png')
