#!/usr/bin/env?python
#?-*-?coding:?utf-8?-*-

#?Copyright?（c）?Philipp?Wagner.?All?rights?reserved.
#?Licensed?under?the?BSD?license.?See?LICENSE?file?in?the?project?root?for?full?license?information.

import?sys
import?os
import?cv2
import?numpy?as?np

class?Detector:
	def?detect（self?src）:
		raise?NotImplementedError（“Every?Detector?must?implement?the?detect?method.“）

class?SkinDetector（Detector）:
	“““
	Implements?common?color?thresholding?rules?for?the?RGB?YCrCb?and?HSV?color?
	space.?The?values?are?taken?from?a?paper?which?I?can‘t?find?right?now?so
	be?careful?with?this?detector.
	
	“““
	def?_R1（selfBGR）:
		#?channels
		B?=?BGR[::0]
		G?=?BGR[::1]
		R?=?BGR[::2]
		e1?=?（R>95）?&?（G>40）?&?（B>20）?&?（（np.maximum（Rnp.maximum（GB））?-?np.minimum（R?np.minimum（GB）））>15）?&?（np.abs（R-G）>15）?&?（R>G）?&?（R>B）
		e2?=?（R>220）?&?（G>210）?&?（B>170）?&?（abs（R-G）<=15）?&?（R>B）?&?（G>B）
		return?（e1|e2）
	
	def?_R2（selfYCrCb）:
		Y?=?YCrCb[::0]
		Cr?=?YCrCb[::1]
		Cb?=?YCrCb[::2]
		e1?=?Cr?<=?（1.5862*Cb+20）
		e2?=?Cr?>=?（0.3448*Cb+76.2069）
		e3?=?Cr?>=?（-4.5652*Cb+234.5652）
		e4?=?Cr?<=?（-1.15*Cb+301.75）
		e5?=?Cr?<=?（-2.2857*Cb+432.85）
		return?e1?&?e2?&?e3?&?e4?&?e5
	
	def?_R3（selfHSV）:
		H?=?HSV[::0]
		S?=?HSV[::1]
		V?=?HSV[::2]
		return?（（H<25）?|?（H>230））
	
	def?detect（self?src）:
		if?np.ndim（src）?			return?np.ones（src.shape?dtype=np.uint8）
		if?src.dtype?!=?np.uint8:
			return?np.ones（src.shape?dtype=np.uint8）
		srcYCrCb?=?cv2.cvtColor（src?cv2.COLOR_BGR2YCR_CB）
		srcHSV?=?cv2.cvtColor（src?cv2.COLOR_BGR2HSV）
		skinPixels?=?self._R1（src）?&?self._R2（srcYCrCb）?&?self._R3（srcHSV）
		return?np.asarray（skinPixels?dtype=np.uint8）

class?CascadedDetector（Detector）:
	“““
	Uses?the?OpenCV?cascades?to?perform?the?detection.?Returns?the?Regions?of?Interest?where
	the?detector?assumes?a?face.?You?probably?have?to?play?around?with?the?scaleFactor?
	minNeighbors?and?minSize?parameters?to?get?good?results?for?your?use?case.?From?my?
	personal?experience?all?I?can?say?is:?there‘s?no?parameter?combination?which?*just?
	works*.	
	“““
	def?__init__（self?cascade_fn=“./cascades/haarcascade_frontalface_alt2.xml“?scaleFactor=1.2?minNeighbors=5?minSize=（3030））:
		if?not?os.path.exists（cascade_fn）:
			raise?IOError（“No?valid?cascade?found?for?path=%s.“?%?cascade_fn）
		self.cascade?=?cv2.CascadeClassifier（cascade_fn）
		self.scaleFactor?=?scaleFactor
		self.minNeighbors?=?minNeighbors
		self.minSize?=?minSize
	
	def?detect（self?src）:
		if?np.ndim（src）?==?3:
			src?=?cv2.cvtColor（src?cv2.COLOR_BGR2GRAY）
		src?=?cv2.equalizeHist（src）
		rects?=?self.cascade.detectMultiScale（src?scaleFactor=self.scaleFactor?minNeighbors=self.minNeighbors?minSize=self.minSize）
		if?len（rects）?==?0:
			return?np.ndarray（（0））
		rects[:2:]?+=?rects[::2]
		return?rects

class?SkinFaceDetector（Detector）:
	“““
	Uses?the?SkinDetector?to?accept?only?faces?over?a?given?skin?color?tone?threshold?（ignored?for?
	grayscale?images）.?Be?careful?with?skin?color?tone?threshol

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2016-12-29?10:52??開源大作業\
?????目錄???????????0??2016-12-05?08:02??開源大作業\face\
?????目錄???????????0??2016-12-03?12:23??開源大作業\face\project\
?????文件????????5067??2016-12-01?18:51??開源大作業\face\project\detector.py
?????文件????????7443??2016-12-03?11:16??開源大作業\face\project\detector.pyc
?????文件????????4633??2016-12-06?17:59??開源大作業\face\project\face.py
?????目錄???????????0??2016-12-05?08:02??開源大作業\face\project\faces\
?????目錄???????????0??2016-12-05?08:02??開源大作業\face\project\faces\qkl\
?????文件???????11382??2016-12-03?12:24??開源大作業\face\project\faces\qkl\1.bmp
?????文件???????11382??2016-12-03?12:24??開源大作業\face\project\faces\qkl\2.bmp
?????文件???????11382??2016-12-03?12:24??開源大作業\face\project\faces\qkl\3.bmp
?????文件???????11382??2016-12-03?12:24??開源大作業\face\project\faces\qkl\4.bmp
?????文件???????11382??2016-12-03?12:24??開源大作業\face\project\faces\qkl\5.bmp
?????文件???????11382??2016-12-03?12:24??開源大作業\face\project\faces\qkl\6.bmp
?????文件???????11382??2016-12-03?12:24??開源大作業\face\project\faces\qkl\7.bmp
?????目錄???????????0??2016-12-03?13:33??開源大作業\face\project\faces\zq\
?????文件???????11382??2016-12-03?13:33??開源大作業\face\project\faces\zq\1.bmp
?????文件???????11382??2016-12-03?13:33??開源大作業\face\project\faces\zq\10.bmp
?????文件???????11382??2016-12-03?13:33??開源大作業\face\project\faces\zq\2.bmp
?????文件???????11382??2016-12-03?13:33??開源大作業\face\project\faces\zq\3.bmp
?????文件???????11382??2016-12-03?13:33??開源大作業\face\project\faces\zq\4.bmp
?????文件???????11382??2016-12-03?13:33??開源大作業\face\project\faces\zq\5.bmp
?????文件???????11382??2016-12-03?13:33??開源大作業\face\project\faces\zq\6.bmp
?????文件???????11382??2016-12-03?13:33??開源大作業\face\project\faces\zq\7.bmp
?????文件???????11382??2016-12-03?13:33??開源大作業\face\project\faces\zq\8.bmp
?????文件???????11382??2016-12-03?13:33??開源大作業\face\project\faces\zq\9.bmp
?????目錄???????????0??2016-12-04?16:47??開源大作業\face\project\faces\zxq\
?????文件???????11382??2016-12-04?16:47??開源大作業\face\project\faces\zxq\1.bmp
?????文件???????11382??2016-12-04?16:47??開源大作業\face\project\faces\zxq\10.bmp
?????文件???????11382??2016-12-04?16:47??開源大作業\face\project\faces\zxq\2.bmp
?????文件???????11382??2016-12-04?16:47??開源大作業\face\project\faces\zxq\3.bmp
............此處省略14個文件信息