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flip_left_right.ts
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flip_left_right.ts
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/**
* @license
* Copyright 2020 Google LLC. All Rights Reserved.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* =============================================================================
*/
import {ENGINE} from '../../engine';
import {FlipLeftRight, FlipLeftRightInputs} from '../../kernel_names';
import {Tensor4D} from '../../tensor';
import {NamedTensorMap} from '../../tensor_types';
import {convertToTensor} from '../../tensor_util_env';
import {TensorLike} from '../../types';
import * as util from '../../util';
import {op} from '../operation';
/**
* Flips the image left to right. Currently available in the CPU, WebGL, and
* WASM backends.
*
* @param image 4d tensor of shape `[batch, imageHeight, imageWidth, depth]`.
*/
/** @doc {heading: 'Operations', subheading: 'Images', namespace: 'image'} */
function flipLeftRight_(image: Tensor4D|TensorLike): Tensor4D {
const $image = convertToTensor(image, 'image', 'flipLeftRight', 'float32');
util.assert(
$image.rank === 4,
() => 'Error in flipLeftRight: image must be rank 4,' +
`but got rank ${$image.rank}.`);
const inputs: FlipLeftRightInputs = {image: $image};
const res =
ENGINE.runKernel(FlipLeftRight, inputs as unknown as NamedTensorMap, {});
return res as Tensor4D;
}
export const flipLeftRight = /* @__PURE__ */ op({flipLeftRight_});