/**
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* @license
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* Copyright 2020 Google LLC. All Rights Reserved.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* =============================================================================
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*/
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/// <amd-module name="@tensorflow/tfjs-core/dist/ops/batch_to_space_nd" />
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import { Tensor } from '../tensor';
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import { TensorLike } from '../types';
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/**
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* This operation reshapes the "batch" dimension 0 into `M + 1` dimensions of
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* shape `blockShape + [batch]`, interleaves these blocks back into the grid
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* defined by the spatial dimensions `[1, ..., M]`, to obtain a result with
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* the same rank as the input. The spatial dimensions of this intermediate
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* result are then optionally cropped according to `crops` to produce the
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* output. This is the reverse of `tf.spaceToBatchND`. See below for a precise
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* description.
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*
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* ```js
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* const x = tf.tensor4d([1, 2, 3, 4], [4, 1, 1, 1]);
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* const blockShape = [2, 2];
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* const crops = [[0, 0], [0, 0]];
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*
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* x.batchToSpaceND(blockShape, crops).print();
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* ```
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*
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* @param x A `tf.Tensor`. N-D with `x.shape` = `[batch] + spatialShape +
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* remainingShape`, where spatialShape has `M` dimensions.
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* @param blockShape A 1-D array. Must have shape `[M]`, all values must
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* be >= 1.
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* @param crops A 2-D array. Must have shape `[M, 2]`, all values must be >= 0.
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* `crops[i] = [cropStart, cropEnd]` specifies the amount to crop from input
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* dimension `i + 1`, which corresponds to spatial dimension `i`. It is required
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* that `cropStart[i] + cropEnd[i] <= blockShape[i] * inputShape[i + 1]`
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*
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* This operation is equivalent to the following steps:
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*
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* 1. Reshape `x` to `reshaped` of shape: `[blockShape[0], ...,
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* blockShape[M-1], batch / prod(blockShape), x.shape[1], ...,
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* x.shape[N-1]]`
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*
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* 2. Permute dimensions of `reshaped` to produce `permuted` of shape `[batch /
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* prod(blockShape),x.shape[1], blockShape[0], ..., x.shape[M],
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* blockShape[M-1],x.shape[M+1], ..., x.shape[N-1]]`
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*
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* 3. Reshape `permuted` to produce `reshapedPermuted` of shape `[batch /
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* prod(blockShape),x.shape[1] * blockShape[0], ..., x.shape[M] *
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* blockShape[M-1],x.shape[M+1], ..., x.shape[N-1]]`
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*
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* 4. Crop the start and end of dimensions `[1, ..., M]` of `reshapedPermuted`
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* according to `crops` to produce the output of shape: `[batch /
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* prod(blockShape),x.shape[1] * blockShape[0] - crops[0,0] - crops[0,1],
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* ..., x.shape[M] * blockShape[M-1] - crops[M-1,0] -
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* crops[M-1,1],x.shape[M+1], ..., x.shape[N-1]]`
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*
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* @doc {heading: 'Tensors', subheading: 'Transformations'}
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*/
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declare function batchToSpaceND_<T extends Tensor>(x: T | TensorLike, blockShape: number[], crops: number[][]): T;
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export declare const batchToSpaceND: typeof batchToSpaceND_;
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export {};
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