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：
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# -*- 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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以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/u013480370/article/details/38389089