client.py
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##################################################
#1. webcam에서 얼굴을 인식합니다.
#2. 얼굴일 영역이 15000 이상인 이미지를 서버에 전송
##################################################
import tkinter as tk
import tkinter.font
import tkinter.messagebox
import tkinter.scrolledtext
import threading
import numpy as np
import cv2
import asyncio
import websockets
import json
import base64
import configparser
from PIL import Image, ImageTk
config = configparser.ConfigParser()
config.read('./client.cnf')
uri = config['server']['uri']
class Client(tk.Frame):
def __init__(self, parent, *args, **kwargs):
tk.Frame.__init__(self, parent, *args, **kwargs)
# URI
self.uri = uri
# Cascade Model
self.cascade = cv2.CascadeClassifier("haarcascade_frontalface_default.xml")
# OpenCV
self.cap = cv2.VideoCapture(0, cv2.CAP_DSHOW)
self.cam_width = 640
self.cam_height = 480
self.cap.set(3, self.cam_width)
self.cap.set(4, self.cam_height)
# Preprocessing
self.margin = int(config['client']['margin'])
image_size = int(config['client']['image_size'])
self.image_size = (image_size, image_size)
# cam에서 MTCNN 적용하는 영역
self.detecting_square = (640, 480)
# 영상 위에 사각형 색상 지정
self.rectangle_color = (0, 0, 255)
# tkinter GUI
self.width = 740
self.height = 700
self.parent = parent
self.parent.title("출석시스템")
self.parent.geometry("%dx%d+100+100" % (self.width, self.height))
self.pack()
self.create_widgets()
# Event loop and Thread
self.event_loop = asyncio.new_event_loop()
self.thread = threading.Thread(target=self.mainthread)
self.thread.start()
def create_widgets(self):
image = np.zeros([self.cam_height, self.cam_width, 3], dtype=np.uint8)
image = Image.fromarray(image)
image = ImageTk.PhotoImage(image)
font = tk.font.Font(family="맑은 고딕", size=15)
self.alert = tk.Label(self, text="출석시스템", font=font)
self.alert.grid(row=0, column=0, columnspan=20)
self.label = tk.Label(self, image=image)
self.label.grid(row=1, column=0, columnspan=20)
self.log = tk.scrolledtext.ScrolledText(self, wrap = tk.WORD, state=tk.DISABLED, width = 96, height = 10)
self.log.grid(row=2, column=0, columnspan=20)
self.quit = tk.Button(self, text="나가기", fg="red", command=self.stop)
self.quit.grid(row=3, column=10)
def logging(self, text):
self.log.config(state=tk.NORMAL)
self.log.insert(tkinter.END, text)
self.log.insert(tkinter.END, '\n')
self.log.config(state=tk.DISABLED)
def detect_face(self, frame):
# detect face with cascade
faces = self.cascade.detectMultiScale(
frame,
scaleFactor=1.2,
minNeighbors=5,
minSize=self.image_size
)
for (x, y, w, h) in faces:
margin = int(self.margin / 2)
image = frame[y-margin:y+h+margin, x-margin:x+w+margin]
# BGR to RGB
converted = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)
return converted, True
return [], False
def mainthread(self):
t = threading.currentThread()
asyncio.set_event_loop(self.event_loop)
x1 = int(self.cam_width / 2 - self.detecting_square[0] / 2)
x2 = int(self.cam_width / 2 + self.detecting_square[0] / 2)
y1 = int(self.cam_height / 2 - self.detecting_square[1] / 2)
y2 = int(self.cam_height / 2 + self.detecting_square[1] / 2)
while getattr(t, "do_run", True):
ret, frame = self.cap.read()
# detect face
face, detected = self.detect_face(frame[y1:y2, x1:x2])
if detected:
self.event_loop.run_until_complete(self.send_face(face))
# 사각형 영역 표시
frame = cv2.rectangle(frame, (x1, y1), (x2, y2), self.rectangle_color, 3)
converted = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
# 거울상으로 보여준다
converted = cv2.flip(converted,1)
image = Image.fromarray(converted)
image = ImageTk.PhotoImage(image)
self.label.configure(image=image)
self.label.image = image # kind of double buffering
@asyncio.coroutine
def set_rectangle_success(self):
self.rectangle_color = (255, 0, 0)
yield from asyncio.sleep(2)
self.rectangle_color = (0, 0, 255)
def set_rectangle_fail(self):
self.rectangle_color = (0, 0, 255)
async def send_face(self, image):
try:
async with websockets.connect(self.uri) as websocket:
img = base64.b64encode(cv2.imencode('.jpg', image)[1]).decode()
send = json.dumps({'action': 'verify', 'image': img})
await websocket.send(send)
recv = await asyncio.wait_for(websocket.recv(), timeout=1000)
data = json.loads(recv)
if data['status'] == 'attend':
student_id = data['student_id']
student_name = data['student_name']
self.logging(student_id + ' ' + student_name + ' is attend')
# change rectangle color
asyncio.ensure_future(self.set_rectangle_success())
elif data['status'] == 'already':
# self.logging('already attend')
# change rectangle color
asyncio.ensure_future(self.set_rectangle_success())
elif data['status'] == 'fail':
self.logging('failed')
self.set_rectangle_fail()
except Exception as e:
self.logging(e)
def stop(self):
self.thread.do_run = False
#self.thread.join()
#self.event_loop.close()
self.cap.release()
self.parent.destroy()
if __name__ == '__main__':
root = tk.Tk()
Client(root)
root.mainloop()