File size: 1,713 Bytes
d02e83e |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 |
# Scene Text Recognition Model Hub
# Copyright 2022 Darwin Bautista
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Extends default ops to accept optional parameters."""
from functools import partial
from timm.data.auto_augment import _LEVEL_DENOM, _randomly_negate, LEVEL_TO_ARG, NAME_TO_OP, rotate
def rotate_expand(img, degrees, **kwargs):
"""Rotate operation with expand=True to avoid cutting off the characters"""
kwargs['expand'] = True
return rotate(img, degrees, **kwargs)
def _level_to_arg(level, hparams, key, default):
magnitude = hparams.get(key, default)
level = (level / _LEVEL_DENOM) * magnitude
level = _randomly_negate(level)
return level,
def apply():
# Overrides
NAME_TO_OP.update({
'Rotate': rotate_expand
})
LEVEL_TO_ARG.update({
'Rotate': partial(_level_to_arg, key='rotate_deg', default=30.),
'ShearX': partial(_level_to_arg, key='shear_x_pct', default=0.3),
'ShearY': partial(_level_to_arg, key='shear_y_pct', default=0.3),
'TranslateXRel': partial(_level_to_arg, key='translate_x_pct', default=0.45),
'TranslateYRel': partial(_level_to_arg, key='translate_y_pct', default=0.45),
})
|