Source code for matx.vision.tv_transforms.pad

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from typing import Any, Tuple, List
import sys
matx = sys.modules['matx']
from .. import ASYNC, PadWithBorderOp
from ._base import BaseInterfaceClass, BatchBaseClass
from ._common import _torch_padding_mode, _assert


[docs]class Pad(BaseInterfaceClass):
[docs] def __init__(self, padding: List[int], fill: List[int] = [0], padding_mode: str = "constant", device_id: int = -2, sync: int = ASYNC) -> None: super().__init__(device_id=device_id, sync=sync) self._padding: List[int] = padding self._fill: List[int] = fill self._padding_mode: str = padding_mode
[docs] def __call__(self, device: Any, device_str: str, sync: int) -> Any: return PadImpl(device, device_str, self._padding, self._fill, self._padding_mode, sync)
class PadImpl(BatchBaseClass): def __init__(self, device: Any, device_str: str, padding: List[int], fill: List[int] = [0], padding_mode: str = "constant", sync: int = ASYNC) -> None: super().__init__() self.device_str: str = device_str if len(padding) == 1: self.padding: List[int] = [padding[0]] * 4 elif len(padding) == 2: self.padding: List[int] = [padding[0], padding[1], padding[0], padding[1]] elif len(padding) == 4: # left, top, right, bottom self.padding: List[int] = [padding[0], padding[1], padding[2], padding[3]] else: _assert( False, "Padding must be an int or a 1, 2, or 4 element tuple, not a {} element tuple".format( len(padding))) if len(fill) == 1: self.fill: Tuple[int, int, int] = (fill[0], fill[0], fill[0]) else: self.fill: Tuple[int, int, int] = (fill[0], fill[1], fill[2]) #_assert(padding_mode in _torch_padding_mode_list, "padding_mode not found") self.padding_mode: str = _torch_padding_mode(padding_mode) self.sync: int = sync self.op: PadWithBorderOp = PadWithBorderOp(device, self.fill, self.padding_mode) self.name: str = "Pad" def _process(self, imgs: List[matx.NDArray]) -> List[matx.NDArray]: return self.op( imgs, [ self.padding[1]], [ self.padding[3]], [ self.padding[0]], [ self.padding[2]], sync=self.sync) def __repr__(self) -> str: return self.name + '(padding={0}, fill={1}, padding_mode={2}, device={3}, sync={4})'.\ format(self.padding, self.fill, self.padding_mode, self.device_str, self.sync)