def _apply_settings(self, frame):
"""Apply custom settings received from GUI (in self.pos).
Args:
frame -- original frame
Returns:
result -- modified frame according to users adjustments
"""
# Translate frame to (i_x, i_y)
if (self.pos['i_x'] != 0) or (self.pos['i_y'] != 0):
frame = translate(frame, int(self.pos['i_x']), \
int(self.pos['i_y']))
# Scale frame
if self.pos['scale'] != 1:
frame_scaled = scale(frame, self.pos['scale'])
frame = fit_into(frame_scaled, self.height, self.width)
# Adjust brightness/contrast
result = frame.copy()
result = brightness_contrast(result, self.pos['contrast'], \
self.pos['brightness'])
# Apply face detection mask (if ON)
if self.pos['tracking_on']:
if self.face_ex == None:
self.face_ex = FaceDetection(self.height, self.width)
tr_mask = self.face_ex.track_faces(frame)
result = apply_mask(result, tr_mask)
# GrabCut face(fg) extraction
if self.pos['gc_iters'] > 0:
gc_mask = self.grab_cut.gc_mask( img=frame, \
iters=self.pos['gc_iters'])
result = apply_mask(result, gc_mask)
# Create triangle mask
# Add decorator here
self.mask = create_triangle_mask(height=self.height, \
width=self.width, \
side=self.pos['m_side'], \
centre=self.pos['m_cntr'], \
bottom=self.pos['m_btm'])
self.cap.loop_video = self.pos['loop_video']
return result
def _apply_settings(self, frame):
"""Apply custom settings received from GUI (in self.pos).
Args:
frame -- original frame
Returns:
result -- modified frame according to users adjustments
"""
# Translate frame to (i_x, i_y)
if (self.pos['i_x'] != 0)or(self.pos['i_y'] != 0):
frame = translate(frame, int(self.pos['i_x']), \
int(self.pos['i_y']))
# Scale frame
if self.pos['scale'] != 1:
frame_scaled = scale(frame, self.pos['scale'])
frame = fit_into(frame_scaled, self.height, self.width)
# Adjust brightness/contrast
result = frame.copy()
result = brightness_contrast(result, self.pos['contrast'], \
self.pos['brightness'])
# Apply face detection mask (if ON)
if self.pos['tracking_on']:
if self.face_ex == None:
self.face_ex = FaceDetection(self.height, self.width)
tr_mask = self.face_ex.track_faces(frame)
result = apply_mask(result, tr_mask)
# GrabCut face(fg) extraction
if self.pos['gc_iters'] > 0:
gc_mask = self.grab_cut.gc_mask( img=frame, \
iters=self.pos['gc_iters'])
result = apply_mask(result, gc_mask)
# Create triangle mask
# Add decorator here
self.mask = create_triangle_mask(height=self.height, \
width=self.width, \
side=self.pos['m_side'], \
centre=self.pos['m_cntr'], \
bottom=self.pos['m_btm'])
self.cap.loop_video = self.pos['loop_video']
return result
class Ghost(object):
"""Pepper's Ghost video processor."""
def __init__(self, source=0):
self.cap = Capture(source) # Input instance:
# def. source == 0 (webcamera)
self.out = Output()
self.height = self.cap.height # Frame height
self.width = self.cap.width # Frame width
self.output_img_height = self.height * 2
self.output_img_width = self.output_img_height
self.output_img_centre_x = self.height
self.output_img_centre_y = self.height
self.fps = self.cap.fps
self.ORD_DICT = {'q':ord('q'), \
'f':ord('f'), \
'o':ord('o'), \
'r':ord('r'), \
'p':ord('p'), \
'm':ord('m')}
self.grab_cut = GrabCut(self.height, self.width)
self.face_ex = None
self.pos = {} # Dict with trackbars values
self.pos['m_cntr'] = 0 # Centre of the mask in output_img
self.pos['m_btm'] = 1 # Mask bottom corner position
self.pos['m_side'] = 1.5 # Mask side corners pos
self.pos['m_y_offset'] = 1 # Offset ratio of y mask coord.
self.pos['i_x'] = int(self.width / 2) # frame x pos
self.pos['i_y'] = int(self.height / 2) # frame y pos
self.pos['scale'] = 1 # frame scale factor
self.pos['loop_video'] = 1 # on/off
self.pos['tracking_on'] = 0 # FaceTracking on/off
self.pos['gc_iters'] = 0 # GrabCut iterations
self.pos['contrast'] = 1 # contrast adj.
self.pos['brightness'] = 0 # brightness adj.
self.gui = Gui(self.height, self.width, self.pos) # GUI instance
self.counter = 0 # Frame counter
def run(self):
"""Video processing."""
self.start = time()
while self.cap.is_opened():
frame = self.cap.next_frame()
# Create output_img with all settings/segmentations applied to frame
frame_mod = self._apply_settings(frame)
output_img = self._create_output_img(frame=frame_mod, \
y_offset_ratio=self.pos['m_y_offset'])
if self.out.is_opened: # Send output_img to output
self.out.write(output_img)
# Operation routines
self.print_fps(self.gui.C_HDR)
self.gui.preview(output_img) # Preview into Output window
key_pressed = cv2.waitKey(1) & 0xFF
if not self._process_key(key_pressed):
break
self.counter += 1
self.end = time()
self.fps = self.get_fps()
self.stop()
def get_fps(self):
fps = round(self.counter / (self.end - self.start), 2)
if self.counter == 100:
self.counter = 0
self.start = self.end
return fps
def print_fps(self, window_hrd='FPS'):
canvas = np.zeros((70, 500, 3), np.uint8)
cv2.putText(canvas, 'FPS: {0:.1f}'.format(self.fps), \
(10, 50), cv2.FONT_HERSHEY_PLAIN, 3, \
(255,255,255), 3, cv2.LINE_AA)
cv2.imshow(window_hrd, canvas)
def stop(self):
"""Release input/output if job is finished. And exit GUI."""
self.cap.release()
self.out.release()
self.gui.exit()
def _apply_settings(self, frame):
"""Apply custom settings received from GUI (in self.pos).
Args:
frame -- original frame
Returns:
result -- modified frame according to users adjustments
"""
# Translate frame to (i_x, i_y)
if (self.pos['i_x'] != 0) or (self.pos['i_y'] != 0):
frame = translate(frame, int(self.pos['i_x']), \
int(self.pos['i_y']))
# Scale frame
if self.pos['scale'] != 1:
frame_scaled = scale(frame, self.pos['scale'])
frame = fit_into(frame_scaled, self.height, self.width)
# Adjust brightness/contrast
result = frame.copy()
result = brightness_contrast(result, self.pos['contrast'], \
self.pos['brightness'])
# Apply face detection mask (if ON)
if self.pos['tracking_on']:
if self.face_ex == None:
self.face_ex = FaceDetection(self.height, self.width)
tr_mask = self.face_ex.track_faces(frame)
result = apply_mask(result, tr_mask)
# GrabCut face(fg) extraction
if self.pos['gc_iters'] > 0:
gc_mask = self.grab_cut.gc_mask( img=frame, \
iters=self.pos['gc_iters'])
result = apply_mask(result, gc_mask)
# Create triangle mask
# Add decorator here
self.mask = create_triangle_mask(height=self.height, \
width=self.width, \
side=self.pos['m_side'], \
centre=self.pos['m_cntr'], \
bottom=self.pos['m_btm'])
self.cap.loop_video = self.pos['loop_video']
return result
def _create_output_img(self, frame, y_offset_ratio=1):
"""Create projections rotated by 'angle' deg. CCW
Args:
frame -- processed frame
y_offset_ratio -- mask y coord offset ratio
Returns:
output_img -- resulting img.
"""
# Create blank output_img
output_img = np.zeros(
(self.output_img_height, self.output_img_width, 3), np.uint8)
# Calculate frame position in the output_img
frame_x = self.output_img_centre_x - self.width // 2
frame_y = self.output_img_centre_y - self.height * y_offset_ratio
# Apply triangle mask on projection
projection = apply_mask(frame, self.mask)
# Apply projection to Bottom Centre of output_img
output_img[frame_y : frame_y + self.height, \
frame_x : frame_x + self.width] = projection
# Add Top projection
output_img = cv2.add(output_img, cv2.flip(output_img, -1))
# Add Left and Right projections
output_img = cv2.add(output_img, cv2.flip(cv2.transpose(output_img),
1))
return output_img
def _process_key(self, key_pressed):
"""Method called from while loop in run(). Porcesses the key pressed.
returns 0 if EXIT button (def. 'q') is pressed. Else returns 1.
Args:
key_pressed -- ord value of key pressed
Reurns:
1 -- take an action and go ahead in the loop
0 -- take an action and BREAK the loop
"""
if key_pressed == self.ORD_DICT['q']: # Wait for 'q' to exit
return 0
elif key_pressed == self.ORD_DICT['f']: # Fullscreen on/off
self.gui.toggle_fullscreen()
elif key_pressed == self.ORD_DICT['o']: # Set output
self.out.set_output(self.output_img_height, self.output_img_width)
elif key_pressed == self.ORD_DICT['r']: # Release output
self.out.release()
elif key_pressed == self.ORD_DICT['p']: # Preview on/off
self.gui.toggle_preview()
elif key_pressed == self.ORD_DICT[
'm']: # Change monitor (switch ratio)
self.gui.change_monitor()
return 1
class Ghost(object):
"""Pepper's Ghost video processor."""
def __init__(self, source=0):
self.cap = Capture(source) # Input instance:
# def. source == 0 (webcamera)
self.out = Output()
self.height = self.cap.height # Frame height
self.width = self.cap.width # Frame width
self.output_img_height = self.height * 2
self.output_img_width = self.output_img_height
self.output_img_centre_x = self.height
self.output_img_centre_y = self.height
self.fps = self.cap.fps
self.ORD_DICT = {'q':ord('q'), \
'f':ord('f'), \
'o':ord('o'), \
'r':ord('r'), \
'p':ord('p'), \
'm':ord('m')}
self.grab_cut = GrabCut(self.height, self.width)
self.face_ex = None
self.pos = {} # Dict with trackbars values
self.pos['m_cntr'] = 0 # Centre of the mask in output_img
self.pos['m_btm'] = 1 # Mask bottom corner position
self.pos['m_side'] = 1.5 # Mask side corners pos
self.pos['m_y_offset'] = 1 # Offset ratio of y mask coord.
self.pos['i_x'] = int(self.width / 2) # frame x pos
self.pos['i_y'] = int(self.height / 2) # frame y pos
self.pos['scale'] = 1 # frame scale factor
self.pos['loop_video'] = 1 # on/off
self.pos['tracking_on'] = 0 # FaceTracking on/off
self.pos['gc_iters'] = 0 # GrabCut iterations
self.pos['contrast'] = 1 # contrast adj.
self.pos['brightness'] = 0 # brightness adj.
self.gui = Gui(self.height, self.width, self.pos) # GUI instance
self.counter = 0 # Frame counter
def run(self):
"""Video processing."""
self.start = time()
while self.cap.is_opened():
frame = self.cap.next_frame()
# Create output_img with all settings/segmentations applied to frame
frame_mod = self._apply_settings(frame)
output_img = self._create_output_img(frame=frame_mod, \
y_offset_ratio=self.pos['m_y_offset'])
if self.out.is_opened: # Send output_img to output
self.out.write(output_img)
# Operation routines
self.print_fps(self.gui.C_HDR)
self.gui.preview(output_img) # Preview into Output window
key_pressed = cv2.waitKey(1) & 0xFF
if not self._process_key(key_pressed):
break
self.counter += 1
self.end = time()
self.fps = self.get_fps()
self.stop()
def get_fps(self):
fps = round(self.counter / (self.end - self.start), 2)
if self.counter == 100:
self.counter = 0
self.start = self.end
return fps
def print_fps(self, window_hrd='FPS'):
canvas = np.zeros((70, 500, 3), np.uint8)
cv2.putText(canvas, 'FPS: {0:.1f}'.format(self.fps), \
(10, 50), cv2.FONT_HERSHEY_PLAIN, 3, \
(255,255,255), 3, cv2.LINE_AA)
cv2.imshow(window_hrd, canvas)
def stop(self):
"""Release input/output if job is finished. And exit GUI."""
self.cap.release()
self.out.release()
self.gui.exit()
def _apply_settings(self, frame):
"""Apply custom settings received from GUI (in self.pos).
Args:
frame -- original frame
Returns:
result -- modified frame according to users adjustments
"""
# Translate frame to (i_x, i_y)
if (self.pos['i_x'] != 0)or(self.pos['i_y'] != 0):
frame = translate(frame, int(self.pos['i_x']), \
int(self.pos['i_y']))
# Scale frame
if self.pos['scale'] != 1:
frame_scaled = scale(frame, self.pos['scale'])
frame = fit_into(frame_scaled, self.height, self.width)
# Adjust brightness/contrast
result = frame.copy()
result = brightness_contrast(result, self.pos['contrast'], \
self.pos['brightness'])
# Apply face detection mask (if ON)
if self.pos['tracking_on']:
if self.face_ex == None:
self.face_ex = FaceDetection(self.height, self.width)
tr_mask = self.face_ex.track_faces(frame)
result = apply_mask(result, tr_mask)
# GrabCut face(fg) extraction
if self.pos['gc_iters'] > 0:
gc_mask = self.grab_cut.gc_mask( img=frame, \
iters=self.pos['gc_iters'])
result = apply_mask(result, gc_mask)
# Create triangle mask
# Add decorator here
self.mask = create_triangle_mask(height=self.height, \
width=self.width, \
side=self.pos['m_side'], \
centre=self.pos['m_cntr'], \
bottom=self.pos['m_btm'])
self.cap.loop_video = self.pos['loop_video']
return result
def _create_output_img(self, frame, y_offset_ratio=1):
"""Create projections rotated by 'angle' deg. CCW
Args:
frame -- processed frame
y_offset_ratio -- mask y coord offset ratio
Returns:
output_img -- resulting img.
"""
# Create blank output_img
output_img = np.zeros((self.output_img_height, self.output_img_width, 3), np.uint8)
# Calculate frame position in the output_img
frame_x = self.output_img_centre_x - self.width // 2
frame_y = self.output_img_centre_y - self.height * y_offset_ratio
# Apply triangle mask on projection
projection = apply_mask(frame, self.mask)
# Apply projection to Bottom Centre of output_img
output_img[frame_y : frame_y + self.height, \
frame_x : frame_x + self.width] = projection
# Add Top projection
output_img = cv2.add(output_img, cv2.flip(output_img, -1))
# Add Left and Right projections
output_img = cv2.add(output_img, cv2.flip(cv2.transpose(output_img), 1))
return output_img
def _process_key(self, key_pressed):
"""Method called from while loop in run(). Porcesses the key pressed.
returns 0 if EXIT button (def. 'q') is pressed. Else returns 1.
Args:
key_pressed -- ord value of key pressed
Reurns:
1 -- take an action and go ahead in the loop
0 -- take an action and BREAK the loop
"""
if key_pressed == self.ORD_DICT['q']: # Wait for 'q' to exit
return 0
elif key_pressed == self.ORD_DICT['f']: # Fullscreen on/off
self.gui.toggle_fullscreen()
elif key_pressed == self.ORD_DICT['o']: # Set output
self.out.set_output(self.output_img_height, self.output_img_width)
elif key_pressed == self.ORD_DICT['r']: # Release output
self.out.release()
elif key_pressed == self.ORD_DICT['p']: # Preview on/off
self.gui.toggle_preview()
elif key_pressed == self.ORD_DICT['m']: # Change monitor (switch ratio)
self.gui.change_monitor()
return 1
