opencv实现静态手势识别 opencv实现剪刀石头布游戏


						本文实例为大家分享了opencv实现静态手势识别的具体代码，供大家参考，具体内容如下

要想运行该代码，请确保安装了：python 2.7,opencv 2.4.9

效果如下：

















算法如下：



把图片先进行处理，处理过程：

     1.用膨胀图像与腐蚀图像相减的方法获得轮廓。

     2.用二值化获得图像

     3. 反色

经过如上的处理之后，图片为：



这之后就简单了，设计一个办法把三种图像区分开来即可。

代码如下：





# -*- coding: cp936 -*-

import cv2

import numpy

import time

import random

import os

def judge( ):

 #构造一个3×3的结构元素

 # return 0 stone ,1 jiandao, 2 bu

 img = cv2.imread("wif.jpg",0)

 element = cv2.getStructuringElement(cv2.MORPH_RECT,(11,11))

 dilate = cv2.dilate(img, element)

 erode = cv2.erode(img, element)

 #将两幅图像相减获得边，第一个参数是膨胀后的图像，第二个参数是腐蚀后的图像

 result = cv2.absdiff(dilate,erode);

 #上面得到的结果是灰度图，将其二值化以便更清楚的观察结果

 retval, result = cv2.threshold(result, 40, 255, cv2.THRESH_BINARY);

 

 #反色，即对二值图每个像素取反

 result = cv2.bitwise_not(result);

 result =cv2.medianBlur(result,23)

 a=[]

 posi =[]

 width =[]

 count = 0

 area = 0 

 for i in range(result.shape[1]):

 for j in range(result.shape[0]):

  if(result[j][i]==0):

  area+=1

 for i in range(result.shape[1]):

 if(result[5*result.shape[0]/16][i]==0 and result[5*result.shape[0]/16][i-1]!=0 ):

  count+=1

  width.append(0)

  posi.append(i)

 if(result[5*result.shape[0]/16][i]==0):

  width[count-1]+=1

 """

 print 'the pic width is ',result.shape[1],'\n'

 for i in range(count):

 print 'the ',i,'th',' ','is';

 print 'width ',width[i]

 print 'posi ',posi[i],'\n'

 print count,'\n'

 print 'area is ',area,'\n'

 

 cv2.line(result,(0,5*result.shape[0]/16),(214,5*result.shape[0]/16),(0,0,0))

 cv2.namedWindow("fcuk")

 cv2.imshow("fcuk",result)

 cv2.waitKey(0)

 """

 #判定时间

 

 width_length=0

 width_jiandao = True

 for i in range(count):

 if width[i]>45:

  #print 'bu1';

  return 2;

 if width[i]<=20 or width[i]>=40:

  width_jiandao= False

 width_length += width[i]

 if width_jiandao==True and count==2:

 return 1;

 if(area <8500):

 #print 'shi tou';

 return 0;

 print "width_leng",width_length

 if(width_length<35):

 #这个时候说明照片是偏下的，所以需要重新测定。

 a=[]

 posi =[]

 width =[]

 count = 0

 for i in range(result.shape[1]):

  if(result[11*result.shape[0]/16][i]==0 and result[11*result.shape[0]/16][i-1]!=0 ):

  count+=1

  width.append(0)

  posi.append(i)

  if(result[11*result.shape[0]/16][i]==0):

  width[count-1]+=1

 """

 print 'the pic width is ',result.shape[1],'\n'

 for i in range(count):

  print 'the ',i,'th',' ','is';

  print 'width ',width[i]

  print 'posi ',posi[i],'\n'

 print count,'\n'

 print 'area is ',area,'\n'

 """

 width_length=0

 width_jiandao = True

 for i in range(count):

 if width[i]>45:

  #print 'bu1';

  return 2;

 if width[i]<=20 or width[i]>=40:

  width_jiandao= False

 width_length += width[i]

 if width_jiandao==True and count==2:

 return 1;

 if(area>14000 or count>=3):

 #print 'bu2';

 return 2;

 if(width_length<110):

 #print 'jian dao';

 return 1;

 else:

 #print 'bu3';

 return 2;

 

 

"""

print("这是通过摄像头来玩的剪刀石头布的游戏，输入y开始\n")

s = raw_input()

capture = cv2.VideoCapture(0)

cv2.namedWindow("camera",1)

start_time = time.time()

print("给你5秒的时间把手放到方框的位置\n")

while(s=='y' or s=='Y'):

 ha,img =capture.read()

 end_time = time.time()

 cv2.rectangle(img,(426,0),(640,250),(170,170,0))

 cv2.putText(img,str(int((5-(end_time- start_time)))), (100,100), cv2.FONT_HERSHEY_SIMPLEX, 2, 255)

 cv2.imshow("camera",img)

 

 if(end_time-start_time>5):

 break

 if(cv2.waitKey(30)>=0):

 break

ha,img = capture.read()

capture.release()

cv2.imshow("camera",img)

img = img[0:210,426:640]

cv2.imwrite("wif.jpg",img)

judge() 

cv2.waitKey(0)

print "fuck"

"""

def game():

 fuck =[]

 fuck.append("石头")

 fuck.append("剪刀")

 fuck.append("布")

 capture = cv2.VideoCapture(0)

 cv2.namedWindow("camera",1)

 start_time = time.time()

 print("给你5秒的时间把手放到方框的位置\n")

 while(1):

 ha,img =capture.read()

 end_time = time.time()

 cv2.rectangle(img,(426,0),(640,250),(170,170,0))

 cv2.putText(img,str(int((5-(end_time- start_time)))), (100,100), cv2.FONT_HERSHEY_SIMPLEX, 2, 255)

 cv2.imshow("camera",img)

 if(end_time-start_time>5):

  break

 if(cv2.waitKey(30)>=0):

  break

 ha,img = capture.read()

 capture.release()

 cv2.imshow("camera",img)

 img = img[0:210,426:640]

 cv2.imwrite("wif.jpg",img)

 p1 = judge()

 pc = random.randint(0,2)

 #print p1,' ',pc,'\n'

 print "你出的是",fuck[p1]," 电脑出的是",fuck[pc],"\n"

 cv2.destroyAllWindows()

 if(p1==pc):

 print "平局\n"

 return 0

 if((p1==0 and pc ==1)or(p1==1 and pc ==2)or(p1==2 and pc ==0)):

 print '你赢了\n'

 return 1

 else:

 print '你输了\n'

 return -1

def main():

 you_win=0

 pc_win=0

 print("这是通过摄像头来玩的剪刀石头布的游戏，请输入回车开始游戏\n")

 s = raw_input()

 while(1):

 print "比分(玩家：电脑) ",you_win,":",pc_win,'\n'

 s = raw_input()

 os.system('cls')

 ans =game()

 if(ans == 1):

  you_win+=1

 elif(ans == -1):

  pc_win+=1

 print "为了减少误判，请尽可能将手占据尽可能大的框框"

main()



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