Pads a tensor with mirrored values.
tf.raw_ops.MirrorPad( input, paddings, mode, name=None )
This operation pads a input
with mirrored values according to the paddings
you specify. paddings
is an integer tensor with shape [n, 2]
, where n is the rank of input
. For each dimension D of input
, paddings[D, 0]
indicates how many values to add before the contents of input
in that dimension, and paddings[D, 1]
indicates how many values to add after the contents of input
in that dimension. Both paddings[D, 0]
and paddings[D, 1]
must be no greater than input.dim_size(D)
(or input.dim_size(D) - 1
) if copy_border
is true (if false, respectively).
The padded size of each dimension D of the output is:
paddings(D, 0) + input.dim_size(D) + paddings(D, 1)
# 't' is [[1, 2, 3], [4, 5, 6]]. # 'paddings' is [[1, 1]], [2, 2]]. # 'mode' is SYMMETRIC. # rank of 't' is 2. pad(t, paddings) ==> [[2, 1, 1, 2, 3, 3, 2] [2, 1, 1, 2, 3, 3, 2] [5, 4, 4, 5, 6, 6, 5] [5, 4, 4, 5, 6, 6, 5]]
Args | |
---|---|
input | A Tensor . The input tensor to be padded. |
paddings | A Tensor . Must be one of the following types: int32 , int64 . A two-column matrix specifying the padding sizes. The number of rows must be the same as the rank of input . |
mode | A string from: "REFLECT", "SYMMETRIC" . Either REFLECT or SYMMETRIC . In reflect mode the padded regions do not include the borders, while in symmetric mode the padded regions do include the borders. For example, if input is [1, 2, 3] and paddings is [0, 2] , then the output is [1, 2, 3, 2, 1] in reflect mode, and it is [1, 2, 3, 3, 2] in symmetric mode. |
name | A name for the operation (optional). |
Returns | |
---|---|
A Tensor . Has the same type as input . |
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Licensed under the Creative Commons Attribution License 3.0.
Code samples licensed under the Apache 2.0 License.
https://www.tensorflow.org/versions/r2.3/api_docs/python/tf/raw_ops/MirrorPad