ValueError:值太多,无法解压缩python 2.7
因此,我试图编译以下代码,但它显示了cv2.findContours上的错误。不过,我使用的是Python 2.7版本。有没有理由解释为什么会出现错误:太多的值无法解压Python2.7ValueError:值太多,无法解压缩python 2.7,python,python-2.7,opencv,video,camera,Python,Python 2.7,Opencv,Video,Camera,因此,我试图编译以下代码,但它显示了cv2.findContours上的错误。不过,我使用的是Python 2.7版本。有没有理由解释为什么会出现错误:太多的值无法解压Python2.7 import cv2 import numpy as np import time #Open Camera object cap = cv2.VideoCapture(0) #Decrease frame size cap.set(cv2.CAP_PROP_FRAME_WIDTH, 1000) cap.s
import cv2
import numpy as np
import time
#Open Camera object
cap = cv2.VideoCapture(0)
#Decrease frame size
cap.set(cv2.CAP_PROP_FRAME_WIDTH, 1000)
cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 600)
def nothing(x):
pass
# Function to find angle between two vectors
def Angle(v1,v2):
dot = np.dot(v1,v2)
x_modulus = np.sqrt((v1*v1).sum())
y_modulus = np.sqrt((v2*v2).sum())
cos_angle = dot / x_modulus / y_modulus
angle = np.degrees(np.arccos(cos_angle))
return angle
# Function to find distance between two points in a list of lists
def FindDistance(A,B):
return np.sqrt(np.power((A[0][0]-B[0][0]),2) + np.power((A[0][1]-B[0][1]),2))
# Creating a window for HSV track bars
cv2.namedWindow('HSV_TrackBar')
# Starting with 100's to prevent error while masking
h,s,v = 100,100,100
# Creating track bar
cv2.createTrackbar('h', 'HSV_TrackBar',0,179,nothing)
cv2.createTrackbar('s', 'HSV_TrackBar',0,255,nothing)
cv2.createTrackbar('v', 'HSV_TrackBar',0,255,nothing)
while(1):
#Measure execution time
start_time = time.time()
#Capture frames from the camera
ret, frame = cap.read()
#Blur the image
blur = cv2.blur(frame,(3,3))
#Convert to HSV color space
hsv = cv2.cvtColor(blur,cv2.COLOR_BGR2HSV)
#Create a binary image with where white will be skin colors and rest is black
mask2 = cv2.inRange(hsv,np.array([2,50,50]),np.array([15,255,255]))
#Kernel matrices for morphological transformation
kernel_square = np.ones((11,11),np.uint8)
kernel_ellipse= cv2.getStructuringElement(cv2.MORPH_ELLIPSE,(5,5))
#Perform morphological transformations to filter out the background noise
#Dilation increase skin color area
#Erosion increase skin color area
dilation = cv2.dilate(mask2,kernel_ellipse,iterations = 1)
erosion = cv2.erode(dilation,kernel_square,iterations = 1)
dilation2 = cv2.dilate(erosion,kernel_ellipse,iterations = 1)
filtered = cv2.medianBlur(dilation2,5)
kernel_ellipse= cv2.getStructuringElement(cv2.MORPH_ELLIPSE,(8,8))
dilation2 = cv2.dilate(filtered,kernel_ellipse,iterations = 1)
kernel_ellipse= cv2.getStructuringElement(cv2.MORPH_ELLIPSE,(5,5))
dilation3 = cv2.dilate(filtered,kernel_ellipse,iterations = 1)
median = cv2.medianBlur(dilation2,5)
ret,thresh = cv2.threshold(median,127,255,0)
#Find contours of the filtered frame
contours, hierarchy = cv2.findContours(thresh,cv2.RETR_TREE,cv2.CHAIN_APPROX_SIMPLE) //error!
#Draw Contours
#cv2.drawContours(frame, cnt, -1, (122,122,0), 3)
#cv2.imshow('Dilation',median)
#Find Max contour area (Assume that hand is in the frame)
max_area=100
ci=0
for i in range(len(contours)):
cnt=contours[i]
area = cv2.contourArea(cnt)
if(area>max_area):
max_area=area
ci=i
#Largest area contour
cnts = contours[ci]
#Find convex hull
hull = cv2.convexHull(cnts)
#Find convex defects
hull2 = cv2.convexHull(cnts,returnPoints = False)
defects = cv2.convexityDefects(cnts,hull2)
#Get defect points and draw them in the original image
FarDefect = []
for i in range(defects.shape[0]):
s,e,f,d = defects[i,0]
start = tuple(cnts[s][0])
end = tuple(cnts[e][0])
far = tuple(cnts[f][0])
FarDefect.append(far)
cv2.line(frame,start,end,[0,255,0],1)
cv2.circle(frame,far,10,[100,255,255],3)
#Find moments of the largest contour
moments = cv2.moments(cnts)
#Central mass of first order moments
if moments['m00']!=0:
cx = int(moments['m10']/moments['m00']) # cx = M10/M00
cy = int(moments['m01']/moments['m00']) # cy = M01/M00
centerMass=(cx,cy)
#Draw center mass
cv2.circle(frame,centerMass,7,[100,0,255],2)
font = cv2.FONT_HERSHEY_SIMPLEX
cv2.putText(frame,'Center',tuple(centerMass),font,2,(255,255,255),2)
#Distance from each finger defect(finger webbing) to the center mass
distanceBetweenDefectsToCenter = []
for i in range(0,len(FarDefect)):
x = np.array(FarDefect[i])
centerMass = np.array(centerMass)
distance = np.sqrt(np.power(x[0]-centerMass[0],2)+np.power(x[1]-centerMass[1],2))
distanceBetweenDefectsToCenter.append(distance)
#Get an average of three shortest distances from finger webbing to center mass
sortedDefectsDistances = sorted(distanceBetweenDefectsToCenter)
AverageDefectDistance = np.mean(sortedDefectsDistances[0:2])
#Get fingertip points from contour hull
#If points are in proximity of 80 pixels, consider as a single point in the group
finger = []
for i in range(0,len(hull)-1):
if (np.absolute(hull[i][0][0] - hull[i+1][0][0]) > 80) or ( np.absolute(hull[i][0][1] - hull[i+1][0][1]) > 80):
if hull[i][0][1] <500 :
finger.append(hull[i][0])
#The fingertip points are 5 hull points with largest y coordinates
finger = sorted(finger,key=lambda x: x[1])
fingers = finger[0:5]
#Calculate distance of each finger tip to the center mass
fingerDistance = []
for i in range(0,len(fingers)):
distance = np.sqrt(np.power(fingers[i][0]-centerMass[0],2)+np.power(fingers[i][1]-centerMass[0],2))
fingerDistance.append(distance)
#Finger is pointed/raised if the distance of between fingertip to the center mass is larger
#than the distance of average finger webbing to center mass by 130 pixels
result = 0
for i in range(0,len(fingers)):
if fingerDistance[i] > AverageDefectDistance+130:
result = result +1
#Print number of pointed fingers
cv2.putText(frame,str(result),(100,100),font,2,(255,255,255),2)
#show height raised fingers
#cv2.putText(frame,'finger1',tuple(finger[0]),font,2,(255,255,255),2)
#cv2.putText(frame,'finger2',tuple(finger[1]),font,2,(255,255,255),2)
#cv2.putText(frame,'finger3',tuple(finger[2]),font,2,(255,255,255),2)
#cv2.putText(frame,'finger4',tuple(finger[3]),font,2,(255,255,255),2)
#cv2.putText(frame,'finger5',tuple(finger[4]),font,2,(255,255,255),2)
#cv2.putText(frame,'finger6',tuple(finger[5]),font,2,(255,255,255),2)
#cv2.putText(frame,'finger7',tuple(finger[6]),font,2,(255,255,255),2)
#cv2.putText(frame,'finger8',tuple(finger[7]),font,2,(255,255,255),2)
#Print bounding rectangle
x,y,w,h = cv2.boundingRect(cnts)
img = cv2.rectangle(frame,(x,y),(x+w,y+h),(0,255,0),2)
cv2.drawContours(frame,[hull],-1,(255,255,255),2)
##### Show final image ########
cv2.imshow('Dilation',frame)
###############################
#Print execution time
#print time.time()-start_time
#close the output video by pressing 'ESC'
k = cv2.waitKey(5) & 0xFF
if k == 27:
break
cap.release()
cv2.destroyAllWindows()
导入cv2
将numpy作为np导入
导入时间
#打开摄影机对象
cap=cv2.视频捕获(0)
#减小帧大小
封盖套件(cv2.cap\u PROP\u FRAME\u WIDTH,1000)
盖组件(cv2.cap\u PROP\u FRAME\u HEIGHT,600)
def nothing(x):
通过
#函数查找两个向量之间的角度
def角度(v1、v2):
点=np点(v1,v2)
x_模数=np.sqrt((v1*v1.sum())
y_模数=np.sqrt((v2*v2.sum())
cos_角度=点/x_模数/y_模数
角度=np度(np角(余角))
返回角
#函数查找列表中两点之间的距离
def FindInstance(A、B):
返回np.sqrt(np.power((A[0][0]-B[0][0]),2)+np.power((A[0][1]-B[0][1]),2))
#为HSV轨迹栏创建窗口
cv2.namedWindow(“HSV_轨迹栏”)
#从100开始,以防止掩蔽时出错
h、 s,v=100100
#创建轨迹栏
cv2.createTrackbar('h','HSV_TrackBar',0179,无)
cv2.createTrackbar('s','HSV_TrackBar',0255,无)
cv2.createTrackbar('v','HSV_TrackBar',0255,无)
而(一):
#测量执行时间
开始时间=time.time()
#从相机捕获帧
ret,frame=cap.read()
#模糊图像
模糊=cv2。模糊(帧,(3,3))
#转换为HSV颜色空间
hsv=cv2.cvt颜色(模糊,cv2.COLOR\u BGR2HSV)
#创建一个二值图像,其中白色为皮肤颜色,其余为黑色
mask2=cv2.inRange(hsv,np.数组([2,50,50]),np.数组([15255255]))
#形态变换的核矩阵
核平方=np.ones((11,11),np.uint8)
kernel_椭圆=cv2.getStructuringElement(cv2.MORPH_椭圆,(5,5))
#执行形态变换以滤除背景噪声
#扩张增加肤色面积
#侵蚀增加皮肤颜色区域
扩张=cv2.扩张(mask2,核_椭圆,迭代次数=1)
侵蚀=cv2。侵蚀(膨胀,核平方,迭代次数=1)
扩张2=cv2.扩张(侵蚀,核_椭圆,迭代次数=1)
过滤=cv2.medianBlur(2,5)
kernel_椭圆=cv2.getStructuringElement(cv2.MORPH_椭圆,(8,8))
扩张2=cv2.扩张(过滤,核_椭圆,迭代次数=1)
kernel_椭圆=cv2.getStructuringElement(cv2.MORPH_椭圆,(5,5))
扩张3=cv2.扩张(过滤,核_椭圆,迭代次数=1)
中位数=cv2.medianBlur(2,5)
ret,thresh=cv2。阈值(中位数127255,0)
#查找过滤帧的轮廓
轮廓,层次=cv2.findContours(阈值,cv2.RETR\u树,cv2.CHAIN\u近似值\u简单)//错误!
#画轮廓
#cv2.绘图轮廓(框架,cnt,-1,(122122,0),3)
#cv2.imshow(‘扩张’、中值)
#查找最大轮廓面积(假设手在框架内)
最大面积=100
ci=0
对于范围内的i(透镜(轮廓)):
cnt=等高线[i]
面积=cv2。轮廓面积(cnt)
如果(面积>最大面积):
最大面积=面积
ci=i
#最大面积等高线
cnts=轮廓[ci]
#求凸壳
外壳=cv2.凸形外壳(cnts)
#查找凸缺陷
hull2=cv2.convxhull(CNT,返回点=False)
缺陷=cv2.凸性缺陷(CNT,hull2)
#获取缺陷点并在原始图像中绘制它们
FarDefect=[]
对于范围内的i(缺陷形状[0]):
s、 e,f,d=缺陷[i,0]
start=tuple(cnts[s][0])
end=tuple(cnts[e][0])
far=元组(cnts[f][0])
FarDefect.append(far)
cv2.线(帧,开始,结束,[0255,0],1)
cv2.圆(帧,远,10,[100255255],3)
#求最大轮廓的矩
力矩=cv2.力矩(CNT)
#一阶矩的中心质量
如果时刻['m00']=0:
cx=int(力矩['m10']/力矩['m00'])#cx=m10/m00
cy=int(力矩['m01']/力矩['m00'])#cy=m01/m00
中心质量=(cx,cy)
#画重心
cv2.圆(框架,中心质量,7,[100,0255],2)
font=cv2.font\u HERSHEY\u SIMPLEX
cv2.putText(框架,“中心”,元组(中心质量),字体,2,(255255),2)
#每个手指缺陷(手指织带)到中心质量的距离
fectstocenter=[]之间的距离
对于范围(0,len(FarDefect))中的i:
x=np.数组(fardeffect[i])
中心质量=np.阵列(中心质量)
距离=np.sqrt(np.power(x[0]-中心质量[0],2)+np.power(x[1]-中心质量[1],2))
distanceBetweenDefectsToCenter.append(距离)
#从手指织带到重心的平均三个最短距离
sortedDefectsDistances=已排序(DefectsToCenter之间的距离)
平均缺陷距离=np.平均值(分拣缺陷距离[0:2])
#从轮廓外壳获取指尖点
如果点接近80个像素,则将其视为组中的单点。
手指=[]
对于范围内的i(0,长度(外壳)-1):
如果(np.绝对(外壳[i][0][0]-外壳[i+1][0][0])>80或(np.绝对(外壳[i][0][1]-外壳[i+1][0][1])>80:
如果船体[i][0][1]平均缺陷距离+130:
结果=结果+1
#打印尖手指的数量
cv2.putText(框架,str(结果),(100100),字体,2,(255255),2)
#举起手指显示高度
#cv2.putText(框架,'finger1',元组(finger[0]),字体,2,(255255),2)
#putText(框架,'finger2',元组(finger[1]),字体,2,(255255),2)
#putText(框架,'finger3',元组(finger[2]),字体,2,(255255),2)
#cv2.putText(框架,'finger4',元组(finger[3]),字体,2,(255255),2)
#cv2.putText(框架,'finger5',元组(finger[4]),字体,2,(255255),2)
#cv2.putText(框架,'finger6',元组(finger[5]),字体,2,(255255),2)
#cv2.putText(框架,'finger7',元组(finger[6]),字体,2,(255255),2)
#putText(框架,'finger8',元组(finger[7]),字体,2,(255255),2)
#打印边框
x、 y,w,h=cv2.boundingRect(碳纳米管)
我
contours, hierarchy = cv2.findContours(thresh,cv2.RETR_TREE,cv2.CHAIN_APPROX_SIMPLE)
image, contours, hierarchy = cv2.findContours(thresh,cv2.RETR_TREE,cv2.CHAIN_APPROX_SIMPLE)