Using trained file for predictions
Hello, I am trying to create a way to recognize faces. In one file the code generates a trainner.yml. Then in another file I am trying to load the file so then it can (when it detects there is a face) recognize the face and give the id. Here is the trainer code:
import cv2,os
import numpy as np
from PIL import Image
recognizer = cv2.face.LBPHFaceRecognizer_create()
detector= cv2.CascadeClassifier("haarcascade_frontalface_default.xml")
def getImagesAndLabels(path):
#get the path of all the files in the folder
imagePaths=[os.path.join(path,f) for f in os.listdir(path)]
#create empth face list
faceSamples=[]
#create empty ID list
Ids=[]
#now looping through all the image paths and loading the Ids and the images
for imagePath in imagePaths:
#loading the image and converting it to gray scale
pilImage=Image.open(imagePath).convert('L')
#Now we are converting the PIL image into numpy array
imageNp=np.array(pilImage,'uint8')
#getting the Id from the image
Id=int(os.path.split(imagePath)[-1].split(".")[1])
# extract the face from the training image sample
faces=detector.detectMultiScale(imageNp)
#If a face is there then append that in the list as well as Id of it
for (x,y,w,h) in faces:
faceSamples.append(imageNp[y:y+h,x:x+w])
Ids.append(Id)
return faceSamples,Ids
faces,Ids = getImagesAndLabels('dataSet')
recognizer.train(faces, np.array(Ids))
recognizer.save('trainner/trainner.yml')
Here is the code that tries to recognize the face:
import cv2
import numpy as np
recognizer = cv2.face.LBPHFaceRecognizer_create()
recognizer.load('trainner/trainner.yml')
cascadePath = "haarcascade_frontalface_default.xml"
faceCascade = cv2.CascadeClassifier(cascadePath)
cam = cv2.VideoCapture(0)
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])
if(conf<50):
if(Id==1):
Id="asciime"
elif(Id==2):
Id="Something"
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()
The error that I am getting is:
File "faceRecog.py", line 5, in <module>
recognizer.load('trainner/trainner.yml')
AttributeError: 'cv2.face_LBPHFaceRecognizer' object has no attribute 'load'
I am using python 3, and openCV 3.3.
I figured this out. Now because I'm a new user I need to wait until tomorrow - No need to find this out.
and, what happens ?
'3.3.0'
When I was installing this on my computer, I accidentally made the import cv2, not cv3
it's still cv2
So how would I change it to cv3?
there is no "load()" method in the (opencv 3.3) interface.
also see here, similar problem in java
there is no such thing as cv3
How would I load the .yml file into the program?