def detectFace(self):
print "stuff"
import sys, getopt
print help_message
args, video_src = getopt.getopt(sys.argv[1:], '', ['cascade=', 'nested-cascade='])
try: video_src = video_src[0]
except: video_src = 0
args = dict(args)
# cascade_fn = args.get('--cascade', "haarcascade_frontalface_alt.xml")
cascade = cv2.CascadeClassifier("haarcascade_frontalface_alt.xml")
cam = create_capture(video_src, fallback='synth:bg=lena.jpg:noise=0.05')
found = False
while True:
ret, img = cam.read()
rects = self.detect(img, cascade)
vis = img.copy()
if(rects != [] and found == False):
print "here"
if goodOrBad(img,cascade):
found = True
cv2.imshow('facedetect', vis)
if 0xFF & cv2.waitKey(5) == 27:
break
cv2.destroyAllWindows()
def image_capture(queue):
'''
Attempts to detect a face in the video feed, and adds a frame to the queue.
'''
import sys, getopt
args, video_src = getopt.getopt(sys.argv[1:], '', ['cascade=', 'nested-cascade='])
try: video_src = video_src[0]
except: video_src = 0
args = dict(args)
cascade_fn = args.get('--cascade', "../metadata/haarcascade_frontalface_alt.xml")
cascade = cv2.CascadeClassifier(cascade_fn)
vidFile = create_capture(video_src, fallback='synth:bg=lena.jpg:noise=0.05')
curr = 1
while True:
try:
flag, frame = vidFile.read() # what does flag mean?
# Flag just tells you if it was able to successfully capture the image or not
frame = frame[frame.shape[1]/2-150:frame.shape[1]/2+200, frame.shape[0]/2-50:frame.shape[0]/2+250]
rects = detect(frame, cascade)
if(rects != []):
if goodOrBad(frame,cascade, curr):
curr = curr +1
found = True
lf.config(bg = "Green")
lf_text.config(text="Face Detected", bg="Green")
else:
lf.config(bg = "Red")
lf_text.confid(text="Searching for a face...", bg="Red")
if flag==0:
break
queue.put(frame) # why is this loading frames onto the queue? because the thread might not
# be able to display frames quickly enough?
#This is a producer/consumer type of problem. The queue is thread safe, one process
# puts things on the queue and another process removes things from ther queue.
except:
continue
