Python基于分水岭算法解决走迷宫游戏示例
作者：白交_Robin
这篇文章主要介绍了Python基于分水岭算法解决走迷宫游戏,结合具体实例形式分析了分水岭算法解决迷宫问题的相关步骤与操作技巧,需要的朋友可以参考下
本文实例讲述了Python基于分水岭算法解决走迷宫游戏。分享给大家供大家参考，具体如下：
#Solving maze with morphological transformation
"""
usage:Solving maze with morphological transformation
needed module:cv2/numpy/sys
ref:
1.http://www.mazegenerator.net/
2.http://blog.leanote.com/post/leeyoung/539a629aab35bc44e2000000
@author:Robin Chen
"""
import cv2
import numpy as np
import sys
def SolvingMaze(image):
#load an image
try:
img = cv2.imread(image)
except Exception,e:
print 'Error:can not open the image!'
sys.exit()
#show image
#cv2.namedWindow('image', cv2.WINDOW_NORMAL)
cv2.imshow('maze_image',img)
#convert to gray
gray_image = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
#show gray image
#cv2.imshow('gray_image',gray_image)
#convert to binary image
retval,binary_image = cv2.threshold(gray_image, 10,255, cv2.THRESH_BINARY_INV)
#cv2.imshow('binary_image',binary_image)
contours,hierarchy = cv2.findContours(binary_image, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_NONE)
if len(contours) != 2:
sys.exit("This is not a 'perfect maze' with just 2 walls!")
h, w, d = img.shape
#The first wall
path = np.zeros((h,w),dtype = np.uint8)#cv2.CV_8UC1
cv2.drawContours(path, contours, 0, (255,255,255),-1)#cv2.FILLED
#cv2.imshow('The first wall',path)
#Dilate the wall by a few pixels
kernel = np.ones((19, 19), dtype = np.uint8)
path = cv2.dilate(path, kernel)
#cv2.imshow('Dilate the wall by a few pixels',path)
#Erode by the same amount of pixels
path_erode = cv2.erode(path, kernel);
#cv2.imshow('Erode by the same amount of pixels',path_erode)
#absdiff
path = cv2.absdiff(path, path_erode);
#cv2.imshow('absdiff',path)
#solution
channels = cv2.split(img);
channels[0] &= ~path;
channels[1] &= ~path;
channels[2] |= path;
dst = cv2.merge(channels);
cv2.imshow("solution", dst);
#waiting for any key to close windows
cv2.waitKey(0)
cv2.destroyAllWindows()
if __name__ == '__main__':
image = sys.argv[-1]
SolvingMaze(image)
更多关于Python相关内容可查看本站专题：《Python游戏开发技巧总结》、《Python数据结构与算法教程》、《Python Socket编程技巧总结》、《Python函数使用技巧总结》、《Python字符串操作技巧汇总》、《Python入门与进阶经典教程》及《Python文件与目录操作技巧汇总》
希望本文所述对大家Python程序设计有所帮助。