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webcamera.py
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webcamera.py
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import numpy as np
import cv2
face_cascade = cv2.CascadeClassifier('haarcascade_frontalface_default.xml')
eye_cascade = cv2.CascadeClassifier('haarcascade_eye.xml')
cap = cv2.VideoCapture(0)
while(True):
ret, frame = cap.read()
gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
faces = face_cascade.detectMultiScale(gray, 1.3, 5)
for (x,y,w,h) in faces:
frame = cv2.rectangle(frame,(x,y),(x+w,y+h),(255,0,0),2)
roi_gray = gray[y:y+h, x:x+w]
roi_color = frame[y:y+h, x:x+w]
eyes = eye_cascade.detectMultiScale(roi_gray)
for (ex,ey,ew,eh) in eyes:
cv2.rectangle(roi_color,(ex,ey),(ex+ew,ey+eh),(0,255,0),2)
cv2.imshow("frame",frame)
k = cv2.waitKey(1) & 0xFF # キー操作取得。64ビットマシンの場合,& 0xFFが必要
prop_val = cv2.getWindowProperty("frame", cv2.WND_PROP_ASPECT_RATIO) # ウィンドウが閉じられたかを検知する用
# qが押されるか、ウィンドウが閉じられたら終了
if k == ord("q") or (prop_val < 0):
break
cap.release()
cv2.destroyAllWindows()