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Keras API reference /
Layers API /
Preprocessing layers /
Image augmentation layers /
RandomTranslation layer

`RandomTranslation`

class```
tf.keras.layers.RandomTranslation(
height_factor,
width_factor,
fill_mode="reflect",
interpolation="bilinear",
seed=None,
fill_value=0.0,
**kwargs
)
```

A preprocessing layer which randomly translates images during training.

This layer will apply random translations to each image during training,
filling empty space according to `fill_mode`

.

Input pixel values can be of any range (e.g. `[0., 1.)`

or `[0, 255]`

) and
of integer or floating point dtype. By default, the layer will output
floats.

For an overview and full list of preprocessing layers, see the preprocessing guide.

**Arguments**

**height_factor**: a float represented as fraction of value, or a tuple of size 2 representing lower and upper bound for shifting vertically. A negative value means shifting image up, while a positive value means shifting image down. When represented as a single positive float, this value is used for both the upper and lower bound. For instance,`height_factor=(-0.2, 0.3)`

results in an output shifted by a random amount in the range`[-20%, +30%]`

.`height_factor=0.2`

results in an output height shifted by a random amount in the range`[-20%, +20%]`

.**width_factor**: a float represented as fraction of value, or a tuple of size 2 representing lower and upper bound for shifting horizontally. A negative value means shifting image left, while a positive value means shifting image right. When represented as a single positive float, this value is used for both the upper and lower bound. For instance,`width_factor=(-0.2, 0.3)`

results in an output shifted left by 20%, and shifted right by 30%.`width_factor=0.2`

results in an output height shifted left or right by 20%.**fill_mode**: Points outside the boundaries of the input are filled according to the given mode (one of`{"constant", "reflect", "wrap", "nearest"}`

). -*reflect*:`(d c b a | a b c d | d c b a)`

The input is extended by reflecting about the edge of the last pixel. -*constant*:`(k k k k | a b c d | k k k k)`

The input is extended by filling all values beyond the edge with the same constant value k = 0. -*wrap*:`(a b c d | a b c d | a b c d)`

The input is extended by wrapping around to the opposite edge. -*nearest*:`(a a a a | a b c d | d d d d)`

The input is extended by the nearest pixel.**interpolation**: Interpolation mode. Supported values:`"nearest"`

,`"bilinear"`

.**seed**: Integer. Used to create a random seed.**fill_value**: a float represents the value to be filled outside the boundaries when`fill_mode="constant"`

.

**Input shape**

3D (unbatched) or 4D (batched) tensor with shape:
`(..., height, width, channels)`

, in `"channels_last"`

format.

**Output shape**

3D (unbatched) or 4D (batched) tensor with shape:
`(..., height, width, channels)`

, in `"channels_last"`

format.