def init(self):
"""
Descript. :
"""
current_path = os.path.dirname(os.path.abspath(__file__)).split(os.sep)
current_path = os.path.join(*current_path[1:-1])
image_path = "/" + current_path + "/tests/fakeimg.jpg"
self.image = QPixmap(image_path)
self.image_dimensions = (self.image.width(), self.image.height())
self.setIsReady(True)
GenericVideoDevice.init(self)
def get_new_image(self):
"""
Descript. :
"""
raw_buffer, width, height = self.get_image()
if raw_buffer is not None and raw_buffer.any():
if self.cam_type == "basler":
raw_buffer = self.decoder(raw_buffer)
qimage = QImage(raw_buffer, width, height,
width * 3,
QImage.Format_RGB888)
else:
qimage = QImage(raw_buffer, width, height,
QImage.Format_RGB888)
if self.cam_mirror is not None:
qimage = qimage.mirrored(self.cam_mirror[0], self.cam_mirror[1])
if self.scale != 1:
dims = self.get_image_dimensions() # should be already scaled
qimage = qimage.scaled(QSize(dims[0], dims[1]))
qpixmap = QPixmap(qimage)
self.emit("imageReceived", qpixmap)
return qimage.copy()
def refresh_video(self):
"""
Descript. : reads new image into member variable, scales it and emits
imageReceived event. Added for compatibility.
"""
image = self.get_new_image()
if image is not None:
self.image = QPixmap.fromImage(image.scaled(self.width, self.height))
self.emit("imageReceived", self.image)
def refresh_video(self):
"""
Descript. : reads new image into member variable, scales it and emits
imageReceived event. Added for compatibility.
"""
image = self.get_new_image()
if image is not None:
self.image = QPixmap.fromImage(image.scaled(self.width, self.height))
self.emit("imageReceived", self.image)
def _do_imagePolling(self, sleep_time):
"""
Descript. : worker method
"""
while True:
image = self.get_new_image()
if image is not None:
self.image = QPixmap.fromImage(image.scaled(self.width, self.height))
self.emit("imageReceived", self.image)
gevent.sleep(sleep_time)
def _do_imagePolling(self, sleep_time):
"""
Descript. : worker method
"""
while True:
image = self.get_new_image()
if image is not None:
self.image = QPixmap.fromImage(image.scaled(self.width, self.height))
self.emit("imageReceived", self.image)
gevent.sleep(sleep_time)
def init(self):
"""
Descript. :
"""
current_path = os.path.dirname(os.path.abspath(__file__)).split(os.sep)
current_path = os.path.join(*current_path[1:-1])
image_path = "/" + current_path + "/tests/fakeimg.jpg"
self.image = QPixmap(image_path)
self.image_dimensions = (self.image.width(), self.image.height())
self.setIsReady(True)
GenericVideoDevice.init(self)
def get_new_image(self):
"""
Descript. :
"""
raw_buffer, width, height = self.get_image()
if raw_buffer is not None:
qimage = QImage(raw_buffer, width, height, QImage.Format_RGB888)
qpixmap = QPixmap(qimage)
self.emit("imageReceived", qpixmap)
return qimage
def load(icon_name):
"""
Descript. : Try to load an icon from file and return the QPixmap object
"""
filename = path.join(ICONS_DIR, icon_name)
if not path.exists(filename):
for ext in ['png', 'xpm', 'gif', 'bmp']:
f = '.'.join([filename, ext])
if path.exists(f):
filename = f
break
try:
icon = QPixmap(filename)
except:
return QPixmap(path.join(ICONS_DIR, 'brick.png'))
else:
if icon.isNull():
return QPixmap(path.join(ICONS_DIR, 'brick.png'))
else:
return icon
def get_new_image(self):
"""
Descript. :
"""
raw_buffer, width, height = self.get_image()
if raw_buffer is not None:
if self.cam_type == "basler":
raw_buffer = self.decoder(raw_buffer)
qimage = QImage(raw_buffer, width, height, width * 3,
QImage.Format_RGB888)
else:
qimage = QImage(raw_buffer, width, height,
QImage.Format_RGB888)
if self.cam_mirror is not None:
qimage = qimage.mirrored(self.cam_mirror[0],
self.cam_mirror[1])
qpixmap = QPixmap(qimage)
self.emit("imageReceived", qpixmap)
return qimage
class Qt4_VideoMockup(GenericVideoDevice):
"""
Descript. :
"""
def __init__(self, name):
"""
Descript. :
"""
GenericVideoDevice.__init__(self, name)
self.force_update = None
self.image_type = None
self.image = None
def init(self):
"""
Descript. :
"""
current_path = os.path.dirname(os.path.abspath(__file__)).split(os.sep)
current_path = os.path.join(*current_path[1:-1])
image_path = os.path.join("/", current_path,
"ExampleFiles/fakeimg.jpg")
self.image = QPixmap(image_path)
self.image_dimensions = (self.image.width(), self.image.height())
self.setIsReady(True)
GenericVideoDevice.init(self)
def get_image_dimensions(self):
return self.image_dimensions
def get_new_image(self):
self.emit("imageReceived", self.image)
def save_snapshot(self, filename, image_type='PNG'):
qimage = QImage(self.image)
qimage.save(filename, image_type)
def get_snapshot(self, bw=None, return_as_array=None):
qimage = QImage(self.image)
if return_as_array:
qimage = qimage.convertToFormat(4)
ptr = qimage.bits()
ptr.setsize(qimage.byteCount())
image_array = np.array(ptr).reshape(qimage.height(),
qimage.width(), 4)
if bw:
return np.dot(image_array[..., :3], [0.299, 0.587, 0.144])
else:
return image_array
else:
if bw:
return qimage.convertToFormat(QImage.Format_Mono)
else:
return qimage
def get_contrast(self):
return 34
def set_contrast(self, contrast_value):
return
def get_brightness(self):
return 54
def set_brightness(self, brightness_value):
return
def get_gain(self):
return 32
def set_gain(self, gain_value):
return
def get_gamma(self):
return 22
def set_gamma(self, gamma_value):
return
def get_exposure_time(self):
return 0.23
def get_video_live(self):
return True
class Qt4_VideoMockup(GenericVideoDevice):
"""
Descript. :
"""
def __init__(self, name):
"""
Descript. :
"""
GenericVideoDevice.__init__(self, name)
self.force_update = None
self.image_type = None
self.image = None
def init(self):
"""
Descript. :
"""
current_path = os.path.dirname(os.path.abspath(__file__)).split(os.sep)
current_path = os.path.join(*current_path[1:-1])
image_path = "/" + current_path + "/tests/fakeimg.jpg"
self.image = QPixmap(image_path)
self.image_dimensions = (self.image.width(), self.image.height())
self.setIsReady(True)
GenericVideoDevice.init(self)
def get_image_dimensions(self):
return self.image_dimensions
def get_new_image(self):
self.emit("imageReceived", self.image)
def save_snapshot(self, filename, image_type='PNG'):
qimage = QImage(self.image)
qimage.save(filename, image_type)
def get_snapshot(self, bw=None, return_as_array=None):
qimage = QImage(self.image)
if return_as_array:
qimage = qimage.convertToFormat(4)
ptr = qimage.bits()
ptr.setsize(qimage.byteCount())
image_array = np.array(ptr).reshape(qimage.height(), qimage.width(), 4)
if bw:
return np.dot(image_array[...,:3], [0.299, 0.587, 0.144])
else:
return image_array
else:
if bw:
return qimage.convertToFormat(QImage.Format_Mono)
else:
return qimage
def get_contrast(self):
return 34
def set_contrast(self, contrast_value):
return
def get_brightness(self):
return 54
def set_brightness(self, brightness_value):
return
def get_gain(self):
return 32
def set_gain(self, gain_value):
return
def get_gamma(self):
return 22
def set_gamma(self, gamma_value):
return
def get_exposure_time(self):
return 0.23
def get_video_live(self):
return True