用於人臉識別的Python中的OpenCV

我正在做一個關於人臉識別的簡單項目，我被卡在一個似乎與opencv相關的錯誤中。我創建了一個名稱爲識別器的文件夾來存儲trainner.yml文件。但該文件沒有被生成。用於人臉識別的Python中的OpenCV

以下是訓練數據集圖像的代碼。

import cv2 
import os 
import numpy as np 
from PIL import Image 

recognizer = cv2.createLBPHFaceRecognizer() 
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: 
     token = imagePath.split(".") 
     if(token[1] =='jpeg'): 
      #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) 
       cv2.imshow("Adding faces to trainning set. . . ",imageNp[y:y+h,x:x+w]) 
       cv2.waitKey(50) 
    return faceSamples,Ids 

faces,Ids = getImagesAndLabels('dataSet') 
recognizer.train(faces, np.array(Ids)) 
recognizer.save('trainner/trainner.yml')

我對着錯誤是這樣：

Traceback (most recent call last): 
    File "C:\Users\User\Desktop\python opencv\Face Recog\trainner.py", line 37, in <module> 
    recognizer.train(faces, np.array(Ids)) 
error: ..\..\..\..\opencv\modules\contrib\src\facerec.cpp:917: error: (-210) Empty training data was given. You'll need more than one sample to learn a model. in function cv::LBPH::train

來源

2017-04-12 Arshad Ali

在返回您的數據對於我的錯誤是非常明顯的，可能你沒有正確加載數據集。 –

-1

我認爲你需要的OpenCV的的contrib模塊！所以，你可以安裝python 3.5，然後OpenCV的3 +的contrib：http://www.lfd.uci.edu/~gohlke/pythonlibs/

來源

2017-04-12 15:15:27

-1

這是因爲你已經在數據集中的一些數據所有你需要的是一個數組

來源

2017-05-14 12:40:50 Alfy

用於人臉識別的Python中的OpenCV

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