image_size | Get image width | Computer Vision library
kandi X-RAY | image_size Summary
kandi X-RAY | image_size Summary
Get image width and height given a file path using minimal dependencies (no need for PIL, libjpeg, libpng, etc)
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Top functions reviewed by kandi - BETA
- Tests the image size
- Get image metadata from a file
- Return the width and height of an image
- Get image metadata from file
- Get image metadata from a byte string
- Test if the size of the image is in bytesio
- Get image size and metadata from bytesio
- Tests the image metadata from a bytes object
- Read README rst file
- Assert that the image has the correct metadata
image_size Key Features
image_size Examples and Code Snippets
Community Discussions
Trending Discussions on image_size
QUESTION
I am following this Github Repo for the WGAN implementation with Gradient Penalty.
And I am trying to understand the following method, which does the job of unit-testing the gradient-penalty calulations.
...ANSWER
Answered 2022-Apr-02 at 17:11good_gradient = torch.ones(*image_shape) / torch.sqrt(image_size)
First, note the Gradient Penalty term in WGAN is =>
(norm(gradient(interpolated)) - 1)^2
And for the Ideal Gradient (i.e. a Good Gradient), this Penalty term would be 0. i.e. A Good gradient is one which has its gradient_penalty is as close to 0 as possible
This means the following should satisfy, after considering the L2-Norm of the Gradient
(norm(gradient(x')) -1)^2 = 0
i.e norm(gradient(x')) = 1
i.e. sqrt(Sum(gradient_i^2) ) = 1
Now if you just continue simplifying the above (considering how norm
is calculated, see my note below) math expression, you will end up with
good_gradient = torch.ones(*image_shape) / torch.sqrt(image_size)
Since you are passing the image_shape
as (256, 1, 28, 28) - so torch.sqrt(image_size)
in your case is tensor(28.)
Effectively the above line is dividing each element of A 4-D Tensor like [[[[1., 1. ... ]]]] with a scaler tensor(28.)
Separately, note hownorm
is calculated
torch.norm
without extra arguments performs, what is called a Frobenius norm which is effectively reshaping the matrix into one long vector and returning the 2-norm of that.
Given an M * N matrix, The Frobenius Norm of a matrix is defined as the square root of the sum of the squares of the elements of the matrix.
QUESTION
I am creating some batch TensorFlow datasets tf.keras.preprocessing.image_dataset_from_directory:
...ANSWER
Answered 2022-Apr-01 at 12:56The parameter shuffle
of tf.keras.preprocessing.image_dataset_from_directory
is set to True
by default, if you want deterministic results, maybe try setting it to False
:
QUESTION
I have list of labels corresponding numbers of files in directory example: [1,2,3]
...ANSWER
Answered 2022-Apr-01 at 09:37🧸💬 Hi, from the document image_dataset_from_directory it specifically required a label as inferred and none when used but the directory structures are specific to the label name. I am using the cats and dogs image to categorize where cats are labeled '0' and dog is the next label.
[ Sample ]:
QUESTION
I'm working on a project on Image Classification. Here I've 30 images and when I try to plot those images it gives me following error,
...ANSWER
Answered 2021-Oct-22 at 06:56The problem is that you are using train_ds.take(1)
to take exactly one batch from your dataset, which has the BATCH_SIZE = 5
. If you want to display 9 images in a 3x3 plot, then simply change your BATCH_SIZE
to 9. Alternatively, you can adjust the number of subplots
you want to create like this:
QUESTION
I upload the data in BatchDataset using the image_dataset_from_directory method
...ANSWER
Answered 2022-Mar-29 at 12:07You can try using tf.py_function
to integrate PIL
operations in graph mode. Here is an example with a batch size of 1 to keep it simple (you can change the batch size afterwards):
Before
QUESTION
I have a dataset of around 3500 images, divided into 3 folders, that I loaded into Google Collab from my google drive, and I'm trying to make them into an ML algorithm using keras and tensorflow with the following code:
...ANSWER
Answered 2022-Mar-28 at 09:23No neurons in the last layer should be same as the number of classes you want to classify (it should be 3 if you are trying to classify 3 types of flowers not 32) . Added a few convolution layers and pooling layers to improve the performance too.
QUESTION
I am training a VQVAE with this dataset (64x64x3). I have downloaded it locally and loaded it with keras in Jupyter notebook. The problem is that when I ran fit()
to train the model I get this error: ValueError: Layer "vq_vae" expects 1 input(s), but it received 2 input tensors. Inputs received: [, ]
. I have taken most of the code from here and adapted it myself. But for some reason I can't make it work for other datasets. You can ignore most of the code here and check it in the page, help is much appreciated.
The code I have so far:
...ANSWER
Answered 2022-Mar-21 at 06:09This kind of model does not work with labels. Try running:
QUESTION
I have the following code:
...ANSWER
Answered 2022-Mar-17 at 15:43You can use tf.data.Dataset.skip
and tf.data.Dataset.take
:
QUESTION
I'm using fwrite
to write a file (it's an image).
First, I'm writing a header that has a fixed size
...ANSWER
Answered 2022-Mar-16 at 11:08You can create a zero-filled block of data with calloc()
, then write that data to the file in one call (and remember to free
the data afterwards):
QUESTION
I'm trying to train my model to read some x-ray Images, I'm using Jupyter Notebook, I imported the Libraries, Defined the image properties, Prepared the dataset, Created the neural net model, Defined callbacks... and Managed the Data but now I'm stuck on this error trying to train the model.
...ANSWER
Answered 2022-Mar-15 at 14:36In the train folder you have two folders NORMAL and PNEUMONIA ? If so then you need to use flow_from_directory instead of flow_from_dataframe:
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Install image_size
You can use image_size like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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