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tf.keras.preprocessing.image.random_zoom

TensorFlow 1 version

Performs a random spatial zoom of a Numpy image tensor.

tf.keras.preprocessing.image.random_zoom(
    x, zoom_range, row_axis=1, col_axis=2, channel_axis=0, fill_mode='nearest',
    cval=0.0, interpolation_order=1
)

Arguments

x: Input tensor. Must be 3D.
zoom_range: Tuple of floats; zoom range for width and height.
row_axis: Index of axis for rows in the input tensor.
col_axis: Index of axis for columns in the input tensor.
channel_axis: Index of axis for channels in the input tensor.
fill_mode: Points outside the boundaries of the input
    are filled according to the given mode
    (one of `{'constant', 'nearest', 'reflect', 'wrap'}`).
cval: Value used for points outside the boundaries
    of the input if `mode='constant'`.
interpolation_order: int, order of spline interpolation.
    see `ndimage.interpolation.affine_transform`

Returns

Zoomed Numpy image tensor.

Raises

ValueError: if `zoom_range` isn't a tuple.