ImportError: cannot import name '_obtain_input_shape' from keras

Question

In Keras,

I'm trying to import _obtain_input_shape as follows:

from keras.applications.imagenet_utils import _obtain_input_shape

However, I get the following error:

ImportError: cannot import name '_obtain_input_shape'

The reason I'm trying to import _obtain_input_shape is so that I can determine the input shape(so as to load VGG-Face as follows :

I'm using it to determine the correct input shape of the input tensor as follow:

input_shape = _obtain_input_shape(input_shape,
                                  default_size=224,
                                  min_size=48,
                                  data_format=K.image_data_format(),
                                  require_flatten=include_top)`

Please assist? Thanks in advance.

There is probably a better way to do what you're trying. What exactly is it you want to do with `_obtain_input_shape`? — Daniel Möller, Mar 05 '18 at 14:54
Hi @DanielMöller, I have edited my question to include more information . — Tshilidzi Mudau, Mar 05 '18 at 15:02
You know that keras doesn't have a VGG-Face, right? The input shape should be chosen by you when you create a model. If you want the default input shape, just pass `(224,224,3)`. — Daniel Möller, Mar 05 '18 at 15:06
Thanks for the responses Daniel, yes I know. I want to load VGG-face pre-trained weights. I will try what you suggested and let you know . — Tshilidzi Mudau, Mar 05 '18 at 15:13
@Austin You can always go to the original code definition and copy paste the needed code into an own library. Load that library instead. The _obtain_input_shape can be found here : https://github.com/keras-team/keras-applications/blob/master/keras_applications/imagenet_utils.py — Florida Man, Sep 14 '20 at 10:57

score 61 · Accepted Answer · edited Nov 25 '18 at 15:59

61

You don't have to downgrade Keras 2.2.2.

In Keras 2.2.2 there is no _obtain_input_shape method in the keras.applications.imagenet_utils module. You can find it under keras-applications with the modul name keras_applications (underscore).

So you don't have to downgrade your Keras to 2.2.0 just change:

from keras.applications.imagenet_utils import _obtain_input_shape

to

from keras_applications.imagenet_utils import _obtain_input_shape

edited Nov 25 '18 at 15:59

Tshilidzi Mudau

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answered Aug 30 '18 at 16:13

Geeocode

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this should be accepted as the correct answer @Tshilidzi Mudau – Rodrigo Laguna Sep 07 '18 at 23:20
@Geeocode Any idea how to import this through tensorflow.keras? – Austin Feb 07 '19 at 22:20
@Austin Please give me a more specific question to be able to answer. – Geeocode Feb 08 '19 at 16:02
2

@Geeocode can I import _obtain_input_shape from TensorFlow 1.12? – Austin Feb 11 '19 at 14:34

score 11 · Answer 2 · edited Aug 16 '18 at 06:23

11

I have found a method that works well. You just use

from keras_applications.imagenet_utils import _obtain_input_shape

Notice: It is keras_applications instead of keras.application.

edited Aug 16 '18 at 06:23

petezurich

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answered Aug 16 '18 at 05:31

galoiszhang

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I have keras 2.2.4 and after the suggested change also, I see the same problem. Any help, please. – Jyotirmay Jan 29 '19 at 14:23
from keras_applications.imagenet_utils import _obtain_input_shape – Jyotirmay Feb 06 '19 at 11:22

score 7 · Answer 3 · answered Aug 01 '18 at 08:56

7

This issue occured because of the version of keras.

In my case, I was downgrade keras 2.2.2 to 2.2.0, and the problem was solved.

answered Aug 01 '18 at 08:56

user5803658

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how do you upgraded kerns 2.2.2 to version less than 2.2.2 – W. Sam Aug 13 '18 at 01:14
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Use 'pip install keras==2.2.0' – Raein Hashemi Aug 15 '18 at 17:02
1

@W.Sam you don't have to downgrade Keras, see my answer below. – Geeocode Aug 30 '18 at 16:11

score 2 · Answer 4 · edited Apr 30 '21 at 14:19

2

In Colab I solved it by importing Keras and installing :

import keras
!pip install keras_applications
from keras_applications.imagenet_utils import _obtain_input_shape

edited Apr 30 '21 at 14:19

Frightera

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answered Apr 30 '21 at 13:57

Giorgio Malagutti

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score 1 · Answer 5 · answered Sep 13 '20 at 15:16

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keras_applications.imagenet_utils is deprecated

Traceback (most recent call last): File "inception_v3.py", line 36, in from keras_applications.imagenet_utils import _obtain_input_shape ModuleNotFoundError: No module named 'keras_application

answered Sep 13 '20 at 15:16

Mike Chen

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score 1 · Answer 6 · answered Jul 01 '21 at 20:29

1

from keras.applications.imagenet_utils import obtain_input_shape

Not _obtain_input_shape. This works fine with keras==2.5.0rc0 (pip install keras==2.5.0rc0)

answered Jul 01 '21 at 20:29

Thanh Nguyen

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score 0 · Answer 7 · answered Feb 06 '19 at 11:22

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for keras 2.2.4: Change the line like below to make it work.

from keras_applications.imagenet_utils import _obtain_input_shape

Note: It is importing from keras_applications and does not from keras.applications as before.

answered Feb 06 '19 at 11:22

Jyotirmay

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ImportError: cannot import name '_obtain_input_shape' from keras

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