import cv2
import numpy as np
face_cascade = cv2.CascadeClassifier('haarcascade_frontalface_default.xml')
eye_cascade = cv2.CascadeClassifier('haarcascade_eye.xml')
web = cv2.VideoCapture(0)
while True:
ret, img = web.read()
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
faces = face_cascade.detectMultiScale(gray, 1.3, 5)
for (x, y, w, h) in faces:
cv2.rectangle(img,(x,y),(x+w,y+h),(255,255,0),2)
roi_gray = gray[y:y+h, x:x+w]
roi_color = img[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),(0,127,255),2)
cv2.imshow('img', img)
k = cv2.waitKey(30) & 0xFF
if k == 27:
web.release()
cv2.destroyAllWindows()
root@beaglebone:/var/lib/cloud9# python test5.py
File "test5.py", line 25
for (ex,ey,ew,eh) in eyes:
^
IndentationError: unexpected indent
答案 0 :(得分:0)
该行开头的空格/制表符的数量表示结构,例如哪些代码作为if
语句和for
循环的一部分执行。因此,您需要对代码的格式更加系统化……
专为编辑代码而设计的文本编辑器在此方面大有帮助。
另外,if k == 27:
似乎是未终止的,即如果用户按下转义键,您想做什么?