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dataRecord.py
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dataRecord.py
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# created by KRC
# KRC Support You
import cv2
from PyQt5.QtCore import QTimer, QRegExp, pyqtSignal
from PyQt5.QtGui import QImage, QPixmap, QIcon, QRegExpValidator, QTextCursor
from PyQt5.QtWidgets import QDialog, QApplication, QWidget, QMessageBox
from PyQt5.uic import loadUi
import logging
import logging.config
import queue
import threading
import sqlite3
import os
import sys
from datetime import datetime
class OperationCancel(Exception):
pass
class RecordDisturbance(Exception):
pass
class DataRecordUI(QWidget):
receiveLogSignal = pyqtSignal(str)
def __init__(self):
super(DataRecordUI, self).__init__()
loadUi('./ui/DataRecord.ui', self)
self.setWindowIcon(QIcon('./icons/icon.png'))
self.setFixedSize(1200, 670)
self.cap = cv2.VideoCapture(0)
self.faceCascade = cv2.CascadeClassifier('./haarcascades/haarcascade_frontalface_default.xml')
self.logQueue = queue.Queue()
self.isExternalCameraUsed = False
self.useExternalCameraCheckBox.stateChanged.connect(
lambda: self.useExternalCamera(self.useExternalCameraCheckBox))
self.startWebcamButton.toggled.connect(self.startWebcam)
self.startWebcamButton.setCheckable(True)
self.timer = QTimer(self)
self.timer.timeout.connect(self.updateFrame)
self.isFaceDetectEnabled = False
self.enableFaceDetectButton.toggled.connect(self.enableFaceDetect)
self.enableFaceDetectButton.setCheckable(True)
self.database = './FaceBase.db'
self.datasets = './datasets'
self.isDbReady = False
self.initDbButton.setIcon(QIcon('./icons/warning.png'))
self.initDbButton.clicked.connect(self.initDb)
self.isUserInfoReady = False
self.userInfo = {'stu_id': '', 'cn_name': '', 'en_name': ''}
self.addOrUpdateUserInfoButton.clicked.connect(self.addOrUpdateUserInfo)
self.migrateToDbButton.clicked.connect(self.migrateToDb)
self.startFaceRecordButton.clicked.connect(lambda: self.startFaceRecord(self.startFaceRecordButton))
# self.startFaceRecordButton.setCheckable(True)
self.faceRecordCount = 0
self.minFaceRecordCount = 100
self.isFaceDataReady = False
self.isFaceRecordEnabled = False
self.enableFaceRecordButton.clicked.connect(self.enableFaceRecord)
self.receiveLogSignal.connect(lambda log: self.logOutput(log))
self.logOutputThread = threading.Thread(target=self.receiveLog, daemon=True)
self.logOutputThread.start()
def useExternalCamera(self, useExternalCameraCheckBox):
if useExternalCameraCheckBox.isChecked():
self.isExternalCameraUsed = True
else:
self.isExternalCameraUsed = False
def startWebcam(self, status):
if status:
if self.isExternalCameraUsed:
camID = 1
else:
camID = 0
self.cap.open(camID)
self.cap.set(cv2.CAP_PROP_FRAME_WIDTH, 640)
self.cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 480)
ret, frame = self.cap.read()
if not ret:
logging.error('Unable to call computer camera{}'.format(camID))
self.logQueue.put('Error:Failed to initialize camera')
self.cap.release()
self.startWebcamButton.setIcon(QIcon('./icons/error.png'))
self.startWebcamButton.setChecked(False)
else:
self.startWebcamButton.setText('Turn off the camera')
self.enableFaceDetectButton.setEnabled(True)
self.timer.start(5)
self.startWebcamButton.setIcon(QIcon('./icons/success.png'))
else:
if self.cap.isOpened():
if self.timer.isActive():
self.timer.stop()
self.cap.release()
self.faceDetectCaptureLabel.clear()
self.faceDetectCaptureLabel.setText('<font color=red>Camera is not turned on</font>')
self.startWebcamButton.setText('Turn on the camera')
self.enableFaceDetectButton.setEnabled(False)
self.startWebcamButton.setIcon(QIcon())
def enableFaceDetect(self, status):
if self.cap.isOpened():
if status:
self.enableFaceDetectButton.setText('Turn off face detection')
self.isFaceDetectEnabled = True
else:
self.enableFaceDetectButton.setText('Turn on face detection')
self.isFaceDetectEnabled = False
def enableFaceRecord(self):
if not self.isFaceRecordEnabled:
self.isFaceRecordEnabled = True
def startFaceRecord(self, startFaceRecordButton):
if startFaceRecordButton.text() == 'Start collecting face data':
if self.isFaceDetectEnabled:
if self.isUserInfoReady:
self.addOrUpdateUserInfoButton.setEnabled(False)
if not self.enableFaceRecordButton.isEnabled():
self.enableFaceRecordButton.setEnabled(True)
self.enableFaceRecordButton.setIcon(QIcon())
self.startFaceRecordButton.setIcon(QIcon('./icons/success.png'))
self.startFaceRecordButton.setText('End the current face collection')
else:
self.startFaceRecordButton.setIcon(QIcon('./icons/error.png'))
self.startFaceRecordButton.setChecked(False)
self.logQueue.put('Error:The operation failed, the system did not detect valid user information')
else:
self.startFaceRecordButton.setIcon(QIcon('./icons/error.png'))
self.logQueue.put('Error:Operation failed, please enable face detection')
else:
if self.faceRecordCount < self.minFaceRecordCount:
text = 'The system currently collects <font color=blue>{}</font> Frame images, too little collected data will lead to larger recognition errors.'.format(self.faceRecordCount)
informativeText = '<b>Please collect at least <font color=red>{}</font> frame image.</b>'.format(self.minFaceRecordCount)
DataRecordUI.callDialog(QMessageBox.Information, text, informativeText, QMessageBox.Ok)
else:
text = 'The system currently collects <font color=blue>{}</font> Frame image, continue to collect can improve the recognition accuracy。'.format(self.faceRecordCount)
informativeText = '<b>Are you sure to end the current face collection?</b>'
ret = DataRecordUI.callDialog(QMessageBox.Question, text, informativeText,
QMessageBox.Yes | QMessageBox.No,
QMessageBox.No)
if ret == QMessageBox.Yes:
self.isFaceDataReady = True
if self.isFaceRecordEnabled:
self.isFaceRecordEnabled = False
self.enableFaceRecordButton.setEnabled(False)
self.enableFaceRecordButton.setIcon(QIcon())
self.startFaceRecordButton.setText('Start collecting face data')
self.startFaceRecordButton.setEnabled(False)
self.startFaceRecordButton.setIcon(QIcon())
self.migrateToDbButton.setEnabled(True)
def updateFrame(self):
ret, frame = self.cap.read()
# self.image = cv2.flip(self.image, 1)
if ret:
self.displayImage(frame)
if self.isFaceDetectEnabled:
detected_frame = self.detectFace(frame)
self.displayImage(detected_frame)
else:
self.displayImage(frame)
def detectFace(self, frame):
gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
faces = self.faceCascade.detectMultiScale(gray, 1.3, 5, minSize=(90, 90))
stu_id = self.userInfo.get('stu_id')
for (x, y, w, h) in faces:
if self.isFaceRecordEnabled:
try:
if not os.path.exists('{}/stu_{}'.format(self.datasets, stu_id)):
os.makedirs('{}/stu_{}'.format(self.datasets, stu_id))
if len(faces) > 1:
raise RecordDisturbance
cv2.imwrite('{}/stu_{}/img.{}.jpg'.format(self.datasets, stu_id, self.faceRecordCount + 1),
gray[y - 20:y + h + 20, x - 20:x + w + 20])
except RecordDisturbance:
self.isFaceRecordEnabled = False
logging.error('Multiple faces or environmental distractions detected')
self.logQueue.put('Warning:Multiple faces or environmental disturbances detected, please fix the problem and continue')
self.enableFaceRecordButton.setIcon(QIcon('./icons/warning.png'))
continue
except Exception as e:
logging.error('An exception occurred while writing the face image file to the computer')
self.enableFaceRecordButton.setIcon(QIcon('./icons/error.png'))
self.logQueue.put('Error:Failed to save face image, failed to capture current capture frame')
else:
self.enableFaceRecordButton.setIcon(QIcon('./icons/success.png'))
self.faceRecordCount = self.faceRecordCount + 1
self.isFaceRecordEnabled = False
self.faceRecordCountLcdNum.display(self.faceRecordCount)
cv2.rectangle(frame, (x - 5, y - 10), (x + w + 5, y + h + 10), (0, 0, 255), 2)
return frame
def displayImage(self, img):
# BGR -> RGB
img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
qformat = QImage.Format_Indexed8
if len(img.shape) == 3: # rows[0], cols[1], channels[2]
if img.shape[2] == 4:
qformat = QImage.Format_RGBA8888
else:
qformat = QImage.Format_RGB888
outImage = QImage(img, img.shape[1], img.shape[0], img.strides[0], qformat)
self.faceDetectCaptureLabel.setPixmap(QPixmap.fromImage(outImage))
self.faceDetectCaptureLabel.setScaledContents(True)
def initDb(self):
conn = sqlite3.connect(self.database)
cursor = conn.cursor()
try:
if not os.path.isdir(self.datasets):
os.makedirs(self.datasets)
cursor.execute('''CREATE TABLE IF NOT EXISTS users (
stu_id VARCHAR(12) PRIMARY KEY NOT NULL,
face_id INTEGER DEFAULT -1,
cn_name VARCHAR(10) NOT NULL,
en_name VARCHAR(16) NOT NULL,
created_time DATE DEFAULT (date('now','localtime'))
)
''')
cursor.execute('SELECT Count(*) FROM users')
result = cursor.fetchone()
dbUserCount = result[0]
except Exception as e:
logging.error('Error reading database, unable to complete database initialization')
self.isDbReady = False
self.initDbButton.setIcon(QIcon('./icons/error.png'))
self.logQueue.put('Error:Failed to initialize database')
else:
self.isDbReady = True
self.dbUserCountLcdNum.display(dbUserCount)
self.logQueue.put('Success:Database initialization is complete')
self.initDbButton.setIcon(QIcon('./icons/success.png'))
self.initDbButton.setEnabled(False)
self.addOrUpdateUserInfoButton.setEnabled(True)
finally:
cursor.close()
conn.commit()
conn.close()
def addOrUpdateUserInfo(self):
self.userInfoDialog = UserInfoDialog()
stu_id, cn_name, en_name = self.userInfo.get('stu_id'), self.userInfo.get('cn_name'), self.userInfo.get(
'en_name')
self.userInfoDialog.stuIDLineEdit.setText(stu_id)
self.userInfoDialog.cnNameLineEdit.setText(cn_name)
self.userInfoDialog.enNameLineEdit.setText(en_name)
self.userInfoDialog.okButton.clicked.connect(self.checkToApplyUserInfo)
self.userInfoDialog.exec()
def checkToApplyUserInfo(self):
if not (self.userInfoDialog.stuIDLineEdit.hasAcceptableInput() and
self.userInfoDialog.cnNameLineEdit.hasAcceptableInput() and
self.userInfoDialog.enNameLineEdit.hasAcceptableInput()):
self.userInfoDialog.msgLabel.setText('<font color=red>Your input is incorrect and the submission failed, please check and try again!</font>')
else:
self.userInfo['stu_id'] = self.userInfoDialog.stuIDLineEdit.text().strip()
self.userInfo['cn_name'] = self.userInfoDialog.cnNameLineEdit.text().strip()
self.userInfo['en_name'] = self.userInfoDialog.enNameLineEdit.text().strip()
stu_id, cn_name, en_name = self.userInfo.get('stu_id'), self.userInfo.get('cn_name'), self.userInfo.get(
'en_name')
self.stuIDLineEdit.setText(stu_id)
self.cnNameLineEdit.setText(cn_name)
self.enNameLineEdit.setText(en_name)
self.isUserInfoReady = True
if not self.startFaceRecordButton.isEnabled():
self.startFaceRecordButton.setEnabled(True)
self.migrateToDbButton.setIcon(QIcon())
self.userInfoDialog.close()
def migrateToDb(self):
if self.isFaceDataReady:
stu_id, cn_name, en_name = self.userInfo.get('stu_id'), self.userInfo.get('cn_name'), self.userInfo.get(
'en_name')
conn = sqlite3.connect(self.database)
cursor = conn.cursor()
try:
cursor.execute('SELECT * FROM users WHERE stu_id=?', (stu_id,))
if cursor.fetchall():
text = 'The database already exists with the student ID of <font color=blue>{}</font> user records.'.format(stu_id)
informativeText = '<b>Override?</b>'
ret = DataRecordUI.callDialog(QMessageBox.Warning, text, informativeText,
QMessageBox.Yes | QMessageBox.No)
if ret == QMessageBox.Yes:
cursor.execute('UPDATE users SET cn_name=?, en_name=? WHERE stu_id=?',
(cn_name, en_name, stu_id,))
else:
raise OperationCancel
else:
cursor.execute('INSERT INTO users (stu_id, cn_name, en_name) VALUES (?, ?, ?)',
(stu_id, cn_name, en_name,))
cursor.execute('SELECT Count(*) FROM users')
result = cursor.fetchone()
dbUserCount = result[0]
except OperationCancel:
pass
except Exception as e:
logging.error('Read and write database exception, unable to insert/update records to database')
self.migrateToDbButton.setIcon(QIcon('./icons/error.png'))
self.logQueue.put('Error:Read and write database exception, synchronization failed')
else:
text = '<font color=blue>{}</font> Added/updated to database.'.format(stu_id)
informativeText = '<b><font color=blue>{}</font> The collection of face data has been completed!</b>'.format(cn_name)
DataRecordUI.callDialog(QMessageBox.Information, text, informativeText, QMessageBox.Ok)
for key in self.userInfo.keys():
self.userInfo[key] = ''
self.isUserInfoReady = False
self.faceRecordCount = 0
self.isFaceDataReady = False
self.faceRecordCountLcdNum.display(self.faceRecordCount)
self.dbUserCountLcdNum.display(dbUserCount)
self.stuIDLineEdit.clear()
self.cnNameLineEdit.clear()
self.enNameLineEdit.clear()
self.migrateToDbButton.setIcon(QIcon('./icons/success.png'))
self.addOrUpdateUserInfoButton.setEnabled(True)
self.migrateToDbButton.setEnabled(False)
finally:
cursor.close()
conn.commit()
conn.close()
else:
self.logQueue.put('Error:The operation failed, you have not completed the face data collection')
self.migrateToDbButton.setIcon(QIcon('./icons/error.png'))
def receiveLog(self):
while True:
data = self.logQueue.get()
if data:
self.receiveLogSignal.emit(data)
else:
continue
def logOutput(self, log):
time = datetime.now().strftime('[%Y/%m/%d %H:%M:%S]')
log = time + ' ' + log + '\n'
self.logTextEdit.moveCursor(QTextCursor.End)
self.logTextEdit.insertPlainText(log)
self.logTextEdit.ensureCursorVisible()
@staticmethod
def callDialog(icon, text, informativeText, standardButtons, defaultButton=None):
msg = QMessageBox()
msg.setWindowIcon(QIcon('./icons/icon.png'))
msg.setWindowTitle('OpenCV Face Recognition System - DataRecord')
msg.setIcon(icon)
msg.setText(text)
msg.setInformativeText(informativeText)
msg.setStandardButtons(standardButtons)
if defaultButton:
msg.setDefaultButton(defaultButton)
return msg.exec()
def closeEvent(self, event):
if self.timer.isActive():
self.timer.stop()
if self.cap.isOpened():
self.cap.release()
event.accept()
class UserInfoDialog(QDialog):
def __init__(self):
super(UserInfoDialog, self).__init__()
loadUi('./ui/UserInfoDialog.ui', self)
self.setWindowIcon(QIcon('./icons/icon.png'))
self.setFixedSize(425, 300)
stu_id_regx = QRegExp('^[0-9]{12}$')
stu_id_validator = QRegExpValidator(stu_id_regx, self.stuIDLineEdit)
self.stuIDLineEdit.setValidator(stu_id_validator)
cn_name_regx = QRegExp('^[ A-Za-z]{1,16}$')
cn_name_validator = QRegExpValidator(cn_name_regx, self.cnNameLineEdit)
self.cnNameLineEdit.setValidator(cn_name_validator)
en_name_regx = QRegExp('^[ A-Za-z]{1,16}$')
en_name_validator = QRegExpValidator(en_name_regx, self.enNameLineEdit)
self.enNameLineEdit.setValidator(en_name_validator)
if __name__ == '__main__':
logging.config.fileConfig('./config/logging.cfg')
app = QApplication(sys.argv)
window = DataRecordUI()
window.show()
sys.exit(app.exec())