keras-preprocessing

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Unable to use flow_from_dataframe - y_col must be str,list,tuple

1

Hi, i am trying to train a multi task CNN using flow_from_dataframe. The columns in dataframe are already in str format but the dtypes shows "Object" no matter what I...

obiii

If class_mode="categorical", y_col column values must be type string, list or tuple

3

In [Keras documentation](https://keras.io/preprocessing/image/), it is mentioned that "categorical": 2D numpy array of one-hot encoded labels. Supports multi-label output. but in my case, it does not support. Here is code ```...

talhaanwarch

flow from dataframe with multiple column names fed into y_col generates TYPE ERROR

4

I am using flow from data frame for a multi-label classification problem with 14 possible labels, all column names are placed in a list in string format for example: ______________________________________________________________________________...

drodriguez3

Right now, if we want to save augmented images to directory, we must do what is described below. https://stackoverflow.com/questions/63769334/imagedatagenerator-keras-save-to-dir ImageDataGenerator **is able to read** this : ``` datasets/ -- class...

Napolitain

affine_transformations.py random_shift function tx ty？

1

keras-preprocessing/keras_preprocessing/image/affine_transformations.py line 85 86 tx = np.random.uniform(-hrg, hrg) * h ty = np.random.uniform(-wrg, wrg) * w should be: ty = np.random.uniform(-hrg, hrg) * h tx = np.random.uniform(-wrg, wrg) * w...

chenying99

Adding verbosity arg to ImageDataGenerator.flow_from_directory

2

Fixes https://github.com/tensorflow/tensorflow/issues/42681

ymodak

### Summary Add the missing seed argument to `self.image_data_generator.get_random_transform` for deterministic results. Especially during multi-thread, we cannot set numpy.rand.seed out of the thread, this argument pass is important! ### Related...

ice-tong

Pillow 8.3.0 breaks image.img_to_array()

1

Was incredibly frustrated with an error popping up out of nowhere today on a script that's worked in the past. Turns out that Pillow 8.3.0 was released today, the same...

matthewlehew

### Summary Python supports negative subscripting for all subscriptable types as standard. TimeseriesGenerator and Iterator override `__getitem__` function but does not support negative subscripts. ### Related Issues N/A ### PR...

OrigamiDream

Does ImageDataGenerator randomly select validation images?

2

When setting parameter `validation_split` to a value larger than 0.0, how does the Keras `ImageDataGenerator `select the validation images? Are they randomly selected from the input directory, or are the...

ZheMann