代码的未知部分,在人脸识别python程序[opencv]中未检测到未知人脸
请帮帮我。我正在运行一个人脸识别检测器python程序,该程序将显示来自sqllite studio数据库的数据,我编写了一个代码,将未知人脸显示为未知代码的未知部分,在人脸识别python程序[opencv]中未检测到未知人脸,python,python-3.x,opencv,computer-vision,face-recognition,Python,Python 3.x,Opencv,Computer Vision,Face Recognition,请帮帮我。我正在运行一个人脸识别检测器python程序,该程序将显示来自sqllite studio数据库的数据,我编写了一个代码,将未知人脸显示为未知 import cv2,os import sqlite3 import numpy as np from PIL import Image import pickle recognizer = cv2.face.LBPHFaceRecognizer_create() recognizer.read('trainer/trainer.yml'
import cv2,os
import sqlite3
import numpy as np
from PIL import Image
import pickle
recognizer = cv2.face.LBPHFaceRecognizer_create()
recognizer.read('trainer/trainer.yml')
cascadePath = "Classifiers/face.xml"
faceCascade = cv2.CascadeClassifier(cascadePath);
path = 'dataSet'
def getProfile(Id):
conn=sqlite3.connect("facebase.db")
cmd="SELECT * FROM people WHERE ID="+str(Id)
cursor=conn.execute(cmd)
profile=None
for row in cursor:
profile=row
conn.close()
return profile
cam = cv2.VideoCapture(0)
font = cv2.FONT_HERSHEY_SIMPLEX #Creates a font
while True:
ret, im =cam.read()
gray=cv2.cvtColor(im,cv2.COLOR_BGR2GRAY)
faces=faceCascade.detectMultiScale(gray, 1.2,5)
for(x,y,w,h) in faces:
cv2.rectangle(im,(x,y),(x+w,y+h),(225,0,0),2)
Id, conf = recognizer.predict(gray[y:y+h,x:x+w])
profile=getProfile(Id)
if(profile!=None):
cv2.putText(im,str(profile[0]), (x,y+10), font, 2, (255,255,255),3)
cv2.putText(im,str(profile[1]), (x,y+40), font, 2, (255,255,255),3)
else:
Id="Unknown"
cv2.rectangle(im, (x-22,y-90), (x+w+22, y-22), (0,255,0), -1)
cv2.putText(im, str(Id), (x,y-40), font, 2, (255,255,255), 3)
cv2.imshow('im',im)
if cv2.waitKey(10) & 0xFF==ord('q'):
break
cam.release()
cv2.destroyAllWindows()
问题是代码的未知部分正在工作。
例如,如果检测到未知人脸而不是显示未知人脸,则会显示数据库中的随机名称
if(profile!=None):
cv2.putText(im,str(profile[0]), (x,y+10), font, 2, (255,255,255),3)
cv2.putText(im,str(profile[1]), (x,y+40), font, 2, (255,255,255),3)
else:
Id="Unknown"
cv2.rectangle(im, (x-22,y-90), (x+w+22, y-22), (0,255,0), -1)
cv2.putText(im, str(Id), (x,y-40), font, 2, (255,255,255), 3)
我正在使用python 3.4和opencv 3.4,有人能帮我吗???我是python新手
谢谢……我解决了这个问题,conf在大多数情况下测量预测的准确性,因此conf将小于50。未知值将大于50。因此可以通过添加ifconf来解决
if(conf<60):
profile=getProfile(Id)
else:
Id=0
profile=getProfile(Id)
if(profile!=None):
cv2.rectangle(im, (x-22,y-90), (x+w+80, y-22), (0,255,0), -1)
cv2.putText(im,str(profile[0]), (x,y-40), font, 2, (255,255,255), 3)
cv2.putText(im,str(profile[1]), (x+50,y-40), font, 2(255,255,255),3)
if(profile!=None):
cv2.putText(im,str(profile[0]), (x,y+10), font, 2, (255,255,255),3)
cv2.putText(im,str(profile[1]), (x,y+40), font, 2, (255,255,255),3)
else:
Id="Unknown"
cv2.rectangle(im, (x-22,y-90), (x+w+22, y-22), (0,255,0), -1)
cv2.putText(im, str(Id), (x,y-40), font, 2, (255,255,255), 3)