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Imag.ts
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Imag.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 {Imag, ImagInputs, KernelConfig, KernelFunc, TensorInfo} from '@tensorflow/tfjs-core';
import {MathBackendCPU} from '../backend_cpu';
export function imag(args: {inputs: ImagInputs, backend: MathBackendCPU}):
TensorInfo {
const {inputs, backend} = args;
const {input} = inputs;
const imag = backend.data.get(input.dataId).complexTensorInfos.imag;
const imagVal = backend.data.get(imag.dataId).values;
// When complex tensor is disposed, its underlying parts will be disposed too.
// Make new tensor out of the imag value of the complex. This makes sure the
// value is still accessible even if complex tensor is disposed.
return backend.makeTensorInfo(imag.shape, imag.dtype, imagVal);
}
export const imagConfig: KernelConfig = {
kernelName: Imag,
backendName: 'cpu',
kernelFunc: imag as unknown as KernelFunc
};