View source on GitHub |
Randomly vary the width of a batch of images during training.
Inherits From: PreprocessingLayer
, Layer
, Module
tf.keras.layers.experimental.preprocessing.RandomWidth(
factor, interpolation='bilinear', seed=None, name=None, **kwargs
)
Adjusts the width of a batch of images by a random factor. The input should be a 4-D tensor in the "channels_last" image data format.
By default, this layer is inactive during inference.
Arguments | ||
---|---|---|
factor
|
A positive float (fraction of original height), or a tuple of size 2
representing lower and upper bound for resizing vertically. When
represented as a single float, this value is used for both the upper and
lower bound. For instance, factor=(0.2, 0.3) results in an output with
width changed by a random amount in the range [20%, 30%] .
factor=(-0.2, 0.3) results in an output with width changed by a random
amount in the range [-20%, +30%]. factor=0.2results in an output with
width changed by a random amount in the range [-20%, +20%].
</td>
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<td> interpolation</td>
<td>
String, the interpolation method. Defaults to bilinear.
Supports bilinear, nearest, bicubic, area, lanczos3, lanczos5, gaussian, mitchellcubic</td>
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<td> seed</td>
<td>
Integer. Used to create a random seed.
</td>
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<td> name`
|
A string, the name of the layer. |
Input shape:
4D tensor with shape:
(samples, height, width, channels)
(data_format='channels_last').
Output shape:
4D tensor with shape:
(samples, height, random_width, channels)
.
Methods
adapt
adapt(
data, reset_state=True
)
Fits the state of the preprocessing layer to the data being passed.
Arguments | |
---|---|
data
|
The data to train on. It can be passed either as a tf.data Dataset, or as a numpy array. |
reset_state
|
Optional argument specifying whether to clear the state of
the layer at the start of the call to adapt , or whether to start
from the existing state. This argument may not be relevant to all
preprocessing layers: a subclass of PreprocessingLayer may choose to
throw if 'reset_state' is set to False.
|