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keras
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48141423
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keras
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48141423
编写于
6月 22, 2021
作者:
Y
Yash Katariya
提交者:
TensorFlower Gardener
6月 22, 2021
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差异文件
Resize and crop when height and width of crop dimensions are greater than the input image.
PiperOrigin-RevId: 380869424
上级
e24363d8
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
17 addition
and
12 deletion
+17
-12
keras/layers/preprocessing/image_preprocessing.py
keras/layers/preprocessing/image_preprocessing.py
+7
-2
keras/layers/preprocessing/image_preprocessing_test.py
keras/layers/preprocessing/image_preprocessing_test.py
+10
-10
未找到文件。
keras/layers/preprocessing/image_preprocessing.py
浏览文件 @
48141423
...
...
@@ -282,9 +282,14 @@ class RandomCrop(base_layer.Layer):
outputs
=
tf
.
slice
(
resized_inputs
,
bbox_begin
,
bbox_size
)
return
outputs
output
=
control_flow_util
.
smart_cond
(
training
,
random_cropped_inputs
,
resize_and_center_cropped_inputs
)
input_shape
=
inputs
.
shape
.
as_list
()
if
self
.
height
>
input_shape
[
H_AXIS
]
or
self
.
width
>
input_shape
[
W_AXIS
]:
output
=
resize_and_center_cropped_inputs
()
else
:
output
=
control_flow_util
.
smart_cond
(
training
,
random_cropped_inputs
,
resize_and_center_cropped_inputs
)
if
unbatched
:
output_shape
=
[
self
.
height
,
self
.
width
,
input_shape
[
-
1
]]
else
:
...
...
keras/layers/preprocessing/image_preprocessing_test.py
浏览文件 @
48141423
...
...
@@ -299,16 +299,6 @@ class RandomCropTest(keras_parameterized.TestCase):
expected_output_shape
=
(
None
,
expected_height
,
expected_width
,
channels
))
@
parameterized
.
named_parameters
((
'random_crop_5_by_12'
,
5
,
12
),
(
'random_crop_10_by_8'
,
10
,
8
),
(
'random_crop_10_by_12'
,
10
,
12
))
def
test_invalid_random_crop
(
self
,
expected_height
,
expected_width
):
# InternelError is raised by tf.function MLIR lowering pass when TFRT
# is enabled.
with
self
.
assertRaises
((
tf
.
errors
.
InvalidArgumentError
,
tf
.
errors
.
InternalError
)):
with
CustomObjectScope
({
'RandomCrop'
:
image_preprocessing
.
RandomCrop
}):
self
.
_run_test
(
expected_height
,
expected_width
)
def
test_training_with_mock
(
self
):
np
.
random
.
seed
(
1337
)
height
,
width
=
3
,
4
...
...
@@ -389,6 +379,16 @@ class RandomCropTest(keras_parameterized.TestCase):
actual_output
=
layer
(
inp
,
training
=
1
)
self
.
assertAllClose
(
inp
[
2
:
10
,
2
:
10
,
:],
actual_output
)
def
test_input_smaller_than_crop_box
(
self
):
np
.
random
.
seed
(
1337
)
height
,
width
=
10
,
8
inp
=
np
.
random
.
random
((
12
,
3
,
3
,
3
))
with
testing_utils
.
use_gpu
():
layer
=
image_preprocessing
.
RandomCrop
(
height
,
width
)
actual_output
=
layer
(
inp
)
expected_output_shape
=
(
12
,
10
,
8
,
3
)
self
.
assertEqual
(
expected_output_shape
,
actual_output
.
shape
)
class
RescalingTest
(
keras_parameterized
.
TestCase
):
...
...
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