def _trackFrame(self, frame, requestedColor='r', requestedOutput='raw'):
"""
Get the position of the mouse in frame and append to self.positions
Returns the mask of the current frame with the mouse potentially drawn
:param frame: The video frame to use.
:type: video_frame.Frame
:param str requestedColor: A character (for list of supported charaters see ObjectContour) idicating the color to draw the contour
:param str requestedOutput: Which frame type to output (one of ['raw', 'mask', 'diff'])
:returns: silhouette
:rtype: binary mask or None
"""
treatedFrame = frame.gray()
fast = self.fast
if not isPi and not fast:
treatedFrame = treatedFrame.denoise().blur()
silhouette, diff = self._getSilhouette(treatedFrame)
biggestContour = self._getBiggestContour(silhouette)
plotSilhouette = None
if fast:
requestedOutput = 'mask'
self.positions.append(self.defaultPos)
if biggestContour is not None:
area = cv2.contourArea(biggestContour)
if self.minArea < area < self.maxArea:
if self.plot:
if requestedOutput == 'raw':
plotSilhouette = (frame.color()).copy()
color = requestedColor
elif requestedOutput == 'mask':
plotSilhouette = silhouette.copy()
color = 'w'
elif requestedOutput == 'diff':
plotSilhouette = (diff.color()).copy()
color = requestedColor
else:
raise NotImplementedError("Expected one of ['raw', 'mask', 'diff'] for requestedOutput, got: {}".format(requestedOutput))
else:
color = 'w'
mouse = ObjectContour(biggestContour, plotSilhouette, contourType='raw', color=color)
if plotSilhouette is not None:
mouse.draw()
self.positions[-1] = mouse.centre
else:
if area > self.maxArea:
if not fast:
print('Frame: {}, found something too big in the arena ({} > {})'.format(
self._stream.currentFrameIdx, area, self.maxArea))
else:
if not fast:
print('Frame: {}, biggest structure too small ({} < {})'.format(
self._stream.currentFrameIdx, area, self.minArea))
return None
else:
print('Frame {}, no contour found'.format(self._stream.currentFrameIdx))
return None
self._checkTeleportation(frame, silhouette)
return plotSilhouette if plotSilhouette is not None else silhouette
def paint(self, frame, roiColor='y', arenaColor='m'):
if self.roi is not None:
roiContour = ObjectContour(self.roi.points, frame, contourType='raw', color=roiColor, lineThickness=2)
roiContour.draw()
if self.extractArena:
arenaContour = ObjectContour(self.arena.points, frame, contourType='raw', color=arenaColor, lineThickness=2)
arenaContour.draw()
def paint(self, frame, roiColor='y', arenaColor='m'):
if self.roi is not None:
roiContour = ObjectContour(self.roi.points,
frame,
contourType='raw',
color=roiColor,
lineThickness=2)
roiContour.draw()
if self.extractArena:
arenaContour = ObjectContour(self.arena.points,
frame,
contourType='raw',
color=arenaColor,
lineThickness=2)
arenaContour.draw()
def _trackFrame(self, frame, requestedColor='r', requestedOutput='raw'):
"""
Get the position of the mouse in frame and append to self.positions
Returns the mask of the current frame with the mouse potentially drawn
:param frame: The video frame to use.
:type: video_frame.Frame
:param str requestedColor: A character (for list of supported charaters see ObjectContour) idicating the color to draw the contour
:param str requestedOutput: Which frame type to output (one of ['raw', 'mask', 'diff'])
:returns: silhouette
:rtype: binary mask or None
"""
treatedFrame = frame.gray()
fast = self.fast
if not isPi and not fast:
treatedFrame = treatedFrame.denoise().blur()
silhouette, diff = self._getSilhouette(treatedFrame)
biggestContour = self._getBiggestContour(silhouette)
plotSilhouette = None
if fast:
requestedOutput = 'mask'
self.positions.append(self.defaultPos)
if biggestContour is not None:
area = cv2.contourArea(biggestContour)
if self.minArea < area < self.maxArea:
if self.plot:
if requestedOutput == 'raw':
plotSilhouette = (frame.color()).copy()
color = requestedColor
elif requestedOutput == 'mask':
plotSilhouette = silhouette.copy()
color = 'w'
elif requestedOutput == 'diff':
plotSilhouette = (diff.color()).copy()
color = requestedColor
else:
raise NotImplementedError(
"Expected one of ['raw', 'mask', 'diff'] for requestedOutput, got: {}"
.format(requestedOutput))
else:
color = 'w'
mouse = ObjectContour(biggestContour,
plotSilhouette,
contourType='raw',
color=color)
if plotSilhouette is not None:
mouse.draw()
self.positions[-1] = mouse.centre
else:
if area > self.maxArea:
if not fast:
print((
'Frame: {}, found something too big in the arena ({} > {})'
.format(self._stream.currentFrameIdx, area,
self.maxArea)))
else:
if not fast:
print(
('Frame: {}, biggest structure too small ({} < {})'
.format(self._stream.currentFrameIdx, area,
self.minArea)))
return None
else:
print(('Frame {}, no contour found'.format(
self._stream.currentFrameIdx)))
return None
self._checkTeleportation(frame, silhouette)
return plotSilhouette if plotSilhouette is not None else silhouette