Reverse

public final class Reverse

Reverses specific dimensions of a tensor.

NOTE tf.reverse has now changed behavior in preparation for 1.0. `tf.reverse_v2` is currently an alias that will be deprecated before TF 1.0.

Given a `tensor`, and a `int32` tensor `axis` representing the set of dimensions of `tensor` to reverse. This operation reverses each dimension `i` for which there exists `j` s.t. `axis[j] == i`.

`tensor` can have up to 8 dimensions. The number of dimensions specified in `axis` may be 0 or more entries. If an index is specified more than once, a InvalidArgument error is raised.

For example: 

# tensor 't' is [[[[ 0,  1,  2,  3],
 #                  [ 4,  5,  6,  7],
 #                  [ 8,  9, 10, 11]],
 #                 [[12, 13, 14, 15],
 #                  [16, 17, 18, 19],
 #                  [20, 21, 22, 23]]]]
 # tensor 't' shape is [1, 2, 3, 4]
 
 # 'dims' is [3] or 'dims' is [-1]
 reverse(t, dims) ==> [[[[ 3,  2,  1,  0],
                         [ 7,  6,  5,  4],
                         [ 11, 10, 9, 8]],
                        [[15, 14, 13, 12],
                         [19, 18, 17, 16],
                         [23, 22, 21, 20]]]]
 
 # 'dims' is '[1]' (or 'dims' is '[-3]')
 reverse(t, dims) ==> [[[[12, 13, 14, 15],
                         [16, 17, 18, 19],
                         [20, 21, 22, 23]
                        [[ 0,  1,  2,  3],
                         [ 4,  5,  6,  7],
                         [ 8,  9, 10, 11]]]]
 
 # 'dims' is '[2]' (or 'dims' is '[-2]')
 reverse(t, dims) ==> [[[[8, 9, 10, 11],
                         [4, 5, 6, 7],
                         [0, 1, 2, 3]]
                        [[20, 21, 22, 23],
                         [16, 17, 18, 19],
                         [12, 13, 14, 15]]]]

Constants

String OP_NAME The name of this op, as known by TensorFlow core engine

Public Methods

Output<T>
asOutput()
Returns the symbolic handle of the tensor.
static <T extends TType> Reverse<T>
create(Scope scope, Operand<T> tensor, Operand<? extends TNumber> axis)
Factory method to create a class wrapping a new Reverse operation.
Output<T>
output()
The same shape as `tensor`.

Inherited Methods

org.tensorflow.op.RawOp
final boolean
equals(Object obj)
final int
hashCode()
Operation
op()
Return this unit of computation as a single Operation.
final String
toString()
boolean
equals(Object arg0)
final Class<?>
getClass()
int
hashCode()
final void
notify()
final void
notifyAll()
String
toString()
final void
wait(long arg0, int arg1)
final void
wait(long arg0)
final void
wait()
org.tensorflow.op.Op
abstract ExecutionEnvironment
env()
Return the execution environment this op was created in.
abstract Operation
op()
Return this unit of computation as a single Operation.
org.tensorflow.Operand
abstract Output<T>
asOutput()
Returns the symbolic handle of the tensor.
abstract T
asTensor()
Returns the tensor at this operand.
abstract Shape
shape()
Returns the (possibly partially known) shape of the tensor referred to by the Output of this operand.
abstract Class<T>
type()
Returns the tensor type of this operand
org.tensorflow.ndarray.Shaped
abstract int
rank()
abstract Shape
shape()
abstract long
size()
Computes and returns the total size of this container, in number of values.

Constants

public static final String OP_NAME

The name of this op, as known by TensorFlow core engine

Constant Value: "ReverseV2"

Public Methods

public Output<T> asOutput ()

Returns the symbolic handle of the tensor.

Inputs to TensorFlow operations are outputs of another TensorFlow operation. This method is used to obtain a symbolic handle that represents the computation of the input.

public static Reverse<T> create (Scope scope, Operand<T> tensor, Operand<? extends TNumber> axis)

Factory method to create a class wrapping a new Reverse operation.

Parameters
scope current scope
tensor Up to 8-D.
axis 1-D. The indices of the dimensions to reverse. Must be in the range `[-rank(tensor), rank(tensor))`.
Returns
  • a new instance of Reverse

public Output<T> output ()

The same shape as `tensor`.