# 1 load xml 2 load jpg 3 haar gray 4 detect 5 draw
import cv2
import numpy as np
# load xml 1 file name
face_xml = cv2.CascadeClassifier('haarcascade_frontalface_default.xml')
eye_xml = cv2.CascadeClassifier('haarcascade_eye.xml')
# load jpg
img = cv2.imread('face.jpg')
cv2.imshow('src',img)
# haar gray
gray = cv2.cvtColor(img,cv2.COLOR_BGR2GRAY)
# detect faces 1 data 2 scale 3 5
faces = face_xml.detectMultiScale(gray,1.3,5)
print('face=',len(faces))
# draw
index = 0
for (x,y,w,h) in faces:
cv2.rectangle(img,(x,y),(x+w,y+h),(255,0,0),2)
roi_face = gray[y:y+h,x:x+w]
roi_color = img[y:y+h,x:x+w]
fileName = str(index)+'.jpg'
cv2.imwrite(fileName,roi_color)
index = index + 1
# 1 gray
eyes = eye_xml.detectMultiScale(roi_face)
print('eye=',len(eyes))
#for (e_x,e_y,e_w,e_h) in eyes:
#cv2.rectangle(roi_color,(e_x,e_y),(e_x+e_w,e_y+e_h),(0,255,0),2)
cv2.imshow('dst',img)
cv2.waitKey(0)
face= 1
eye= 2
image.png
