‘‘‘‘
Capture?multiple?Faces?from?multiple?users?to?be?stored?on?a?Database?（dataset?directory）
	==>?Faces?will?be?stored?on?a?directory:?dataset/?（if?does?not?exist?pls?create?one）
	==>?Each?face?will?have?a?unique?numeric?integer?ID?as?1?2?3?etc???????????????????????

based?on?original?code?by?Anirban?Kar:?https://github.com/thecodacus/Face-Recognition????

Developed?by?Marcelo?Rovai?-?MJRoBot.org?@?21Feb18????

‘‘‘

import?cv2
import?os

cam?=?cv2.VideoCapture（0）
#cam.set（3?640）????#?set?video?width
#cam.set（4?480）????#?set?video?height

face_detector?=?cv2.CascadeClassifier（‘haarcascade_frontalface_alt2.xml‘）

color?=?（0?255?0）

#?For?each?person?enter?one?numeric?face?id
face_id?=?input（‘\n?Please?enter?user?id?end?press??==>??‘）

print（“\n?[INFO]?Initializing?face?capture.?Look?the?camera?and?wait?...“）
#?Initialize?individual?sampling?face?count
count?=?0

#Start?looping
while（True）:
????
????ret?img?=?cam.read（）
????
????#img?=?cv2.flip（img?-1）??#?flip?video?image?vertically
????
????#?convert?frame?to?grayscale
????gray?=?cv2.cvtColor（img?cv2.COLOR_BGR2GRAY）
????#?Using?the?classifier?to?detect?the?number?of?face?matrices?in?the?grayscale?image?1.3?indicates?the?scaling?ratio?and?5?indicates?the?number?of?valid?points?to?be?detected.
????
????#?Detect?frames?of?different?sizes?list?of?faces?rectangles
????faces?=?face_detector.detectMultiScale（gray?1.3?5）
????
????#?Loops?for?each?faces
????for?（xywh）?in?faces:
????????
????????#?Specify?the?size?of?the?rectangle?and?the?thickness?of?the?rectangle?border
????????cv2.rectangle（img?（xy）?（x+wy+h）?（25500）?2）?#?Crop?the?image?frame?into?rectangle
????????
????????#?Increment?sample?face?image
????????count?+=?1
????????
????????font?=?cv2.FONT_HERSHEY_SIMPLEX
????????cv2.putText（img‘count:%d‘?%?（count）（x+30?y+30）?font?1?（2550255）4）

????????#?Save?the?captured?image?into?the?datasets?folder
????????cv2.imwrite（“dataset/User.“?+?str（face_id）?+?‘.‘?+?str（count）?+?“.jpg“?gray[y:y+hx:x+w]）
?
????????#?Display?the?video?frame?into?the?dataset?folder
????????cv2.imshow（‘image‘?img）

????#?To?stop?taking?video?Press?‘ESC‘?for?exiting?video
????k?=?cv2.waitKey（100）?&?0xff
????if?k?==?27:
????????break
????#?If?image?taken?reach?100?stop?taking?video?
????elif?count?>=?500:?#?Take?30?face?sample?and?stop?video
????????break



#?Do?a?bit?of?cleanup
print（“\n?[INFO]?Exiting?Program?and?cleanup?stuff“）
cam.release（）
cv2.destroyAllWindows（）

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????2202??2019-01-24?14:56??face_training.py
?????目錄???????????0??2019-03-12?16:27??__MACOSX\
?????文件?????????273??2019-01-24?14:56??__MACOSX\._face_training.py
?????文件??????540616??2019-01-08?19:27??haarcascade_frontalface_alt2.xml
?????文件?????????212??2019-01-08?19:27??__MACOSX\._haarcascade_frontalface_alt2.xml
?????文件????????2477??2019-03-12?09:07??face_dataset.py
?????文件?????????176??2019-03-12?09:07??__MACOSX\._face_dataset.py
?????文件??????930127??2018-02-23?11:52??haarcascade_frontalface_default.xml
?????目錄???????????0??2019-01-14?20:27??trainer\
?????文件????????6148??2019-01-14?20:17??trainer\.DS_Store
?????目錄???????????0??2019-03-12?16:27??__MACOSX\trainer\
?????文件?????????120??2019-01-14?20:17??__MACOSX\trainer\._.DS_Store
?????文件???240860526??2019-03-11?09:34??trainer\trainer.yml
?????文件????????2744??2019-02-15?14:17??face_recognition.py
?????文件?????????176??2019-02-15?14:17??__MACOSX\._face_recognition.py