def __init__(self,
replacement=True,
start=0,
equalizeCategories=False,
*args,
**kwargs):
"""
Args:
replacement: Whether the same image can be picked multiple times.
start: Number of random choices to skip at the beginning, useful
when seeding the random number generator.
"""
BaseExplorer.__init__(self, *args, **kwargs)
if type(replacement) not in (bool, int):
raise RuntimeError("'replacement' should be a boolean")
if type(start) is not int:
raise RuntimeError("'start' should be an integer")
self.replacement = replacement
self.start = start
self.equalizeCategories = equalizeCategories
self.imagesByCat = None
if not self.replacement:
self.history = []
def __init__(self, sweepDirections=['left', 'right', 'up', 'down'],
shiftDuringSweep=1, sweepOffObject=False, *args, **kwargs):
"""
Args:
sweepDirections: Directions for sweeping. Must be a list containing
one or more of 'left', 'right', 'up', and 'down' for horizontal and
vertical sweeps, or 'leftup', 'leftdown', 'rightup', and 'rightdown'
for diagonal sweeps (or 'upleft, 'downleft', 'upright', and
'downright'). Can also be the string 'all', for all eight directions.
shiftDuringSweep: Number of pixels to jump with each step (during
a sweep).
sweepOffObject: Whether the sensor can only include a part of the
object, as specified by the bounding box. If False, it will only move
to positions that include as much of the object as possible.
"""
BaseExplorer.__init__(self, *args, **kwargs)
if sweepDirections == 'all':
sweepDirections = ['left', 'right', 'up', 'down',
'leftdown', 'leftup', 'rightdown', 'rightup']
else:
for direction in sweepDirections:
if direction not in ('left', 'right', 'up', 'down',
'leftup', 'upleft', 'leftdown', 'downleft',
'rightup', 'upright', 'rightdown', 'downright'):
raise RuntimeError('Unknown sweep direction: %s' % direction)
if type(shiftDuringSweep) is not int:
raise RuntimeError("'shiftDuringSweep' should be an integer")
if type(sweepOffObject) not in (bool, int):
raise RuntimeError("'sweepOffObject' should be a boolean")
self.sweepDirections = sweepDirections
self.shiftDuringSweep = shiftDuringSweep
self.sweepOffObject = sweepOffObject
def __init__(self, sweepDirections=["right", "down"], shiftDuringSweep=1,
shiftBetweenSweeps=1, sweepOffObject=False, order=None,
*args, **kwargs):
"""
Args:
sweepDirections: Directions for sweeping (a list containing one or
more of 'left', 'right', 'up', and 'down').
shiftDuringSweep: Number of pixels to jump with each step (during a
sweep).
shiftBetweenSweeps: Number of pixels to jump in between sweeps
(for example, when moving down a line after
sweeping across).
sweepOffObject: Whether the sensor can only include a part of the
object, as specified by the bounding box. If False,
it will only move to positions that include as much
of the object as possible. If True, it will sweep
until all of the object moves off the sensor. If
set to a floating point number between 0 and 1,
then it will sweep until that fraction of the
object moves off the sensor.
order: Order in which to iterate (outer to inner). Default progresses
through switching images, filters, and sweeping, where
switching images is the outer loop and sweeping is the inner
loop. Should be a list containing 'image', 'sweep', and
0, 1, ... numFilters-1.
"""
BaseExplorer.__init__(self, *args, **kwargs)
for direction in sweepDirections:
if direction not in ('left', 'right', 'up', 'down'):
raise RuntimeError("Unknown sweep direction: '%s'" % direction)
if type(shiftDuringSweep) is not int:
raise RuntimeError("'shiftDuringSweep' must be an integer")
if type(shiftBetweenSweeps) is not int:
raise RuntimeError("'shiftBetweenSweeps' must be an integer")
if float(sweepOffObject) < 0 or float(sweepOffObject) > 1.0:
raise RuntimeError("'sweepOffObject' should be a boolean, or floating point"
" number between 0 and 1")
if order is not None:
if 'image' not in order or 'sweep' not in order:
raise RuntimeError("'order' must contain both 'image' and 'sweep'")
if len([x for x in order if type(x) == str]) > 2:
raise RuntimeError("'order' must contain no other strings besides "
"'image' and 'sweep'")
self.customOrder = True
else:
self.customOrder = False
self.sweepDirections = sweepDirections
self.shiftDuringSweep = shiftDuringSweep
self.shiftBetweenSweeps = shiftBetweenSweeps
self.sweepOffObject = sweepOffObject
self.order = order
def __init__(self, replacement=True, start=0, equalizeCategories=False,
*args, **kwargs):
"""
Args:
replacement: Whether the same image can be picked multiple times.
start: Number of random choices to skip at the beginning, useful
when seeding the random number generator.
"""
BaseExplorer.__init__(self, *args, **kwargs)
if type(replacement) not in (bool, int):
raise RuntimeError("'replacement' should be a boolean")
if type(start) is not int:
raise RuntimeError("'start' should be an integer")
self.replacement = replacement
self.start = start
self.equalizeCategories = equalizeCategories
self.imagesByCat = None
if not self.replacement:
self.history = []
def __init__(self,
sweepDirections=["right", "down"],
shiftDuringSweep=1,
shiftBetweenSweeps=1,
sweepOffObject=False,
order=None,
*args,
**kwargs):
"""
Args:
sweepDirections: Directions for sweeping (a list containing one or
more of 'left', 'right', 'up', and 'down').
shiftDuringSweep: Number of pixels to jump with each step (during a
sweep).
shiftBetweenSweeps: Number of pixels to jump in between sweeps
(for example, when moving down a line after
sweeping across).
sweepOffObject: Whether the sensor can only include a part of the
object, as specified by the bounding box. If False,
it will only move to positions that include as much
of the object as possible. If True, it will sweep
until all of the object moves off the sensor. If
set to a floating point number between 0 and 1,
then it will sweep until that fraction of the
object moves off the sensor.
order: Order in which to iterate (outer to inner). Default progresses
through switching images, filters, and sweeping, where
switching images is the outer loop and sweeping is the inner
loop. Should be a list containing 'image', 'sweep', and
0, 1, ... numFilters-1.
"""
BaseExplorer.__init__(self, *args, **kwargs)
for direction in sweepDirections:
if direction not in ('left', 'right', 'up', 'down'):
raise RuntimeError("Unknown sweep direction: '%s'" % direction)
if type(shiftDuringSweep) is not int:
raise RuntimeError("'shiftDuringSweep' must be an integer")
if type(shiftBetweenSweeps) is not int:
raise RuntimeError("'shiftBetweenSweeps' must be an integer")
if float(sweepOffObject) < 0 or float(sweepOffObject) > 1.0:
raise RuntimeError(
"'sweepOffObject' should be a boolean, or floating point"
" number between 0 and 1")
if order is not None:
if 'image' not in order or 'sweep' not in order:
raise RuntimeError(
"'order' must contain both 'image' and 'sweep'")
if len([x for x in order if type(x) == str]) > 2:
raise RuntimeError(
"'order' must contain no other strings besides "
"'image' and 'sweep'")
self.customOrder = True
else:
self.customOrder = False
self.sweepDirections = sweepDirections
self.shiftDuringSweep = shiftDuringSweep
self.shiftBetweenSweeps = shiftBetweenSweeps
self.sweepOffObject = sweepOffObject
self.order = order
