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1/**
2 * @license
3 * Copyright 2021 Google LLC. All Rights Reserved.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * https://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 * =============================================================================
16 */
17/// <amd-module name="@tensorflow/tfjs-core/dist/ops/image/threshold" />
18import { Tensor3D } from '../../tensor';
19import { TensorLike } from '../../types';
20/**
21 * Performs image binarization with corresponding threshold
22 * (depends on the method)value, which creates a binary image from a grayscale.
23 * @param image 3d tensor of shape [imageHeight,imageWidth, depth],
24 * where imageHeight and imageWidth must be positive.The image color
25 * range should be [0, 255].
26 * @param method Optional string from `'binary' | 'otsu'`
27 * which specifies the method for thresholding. Defaults to 'binary'.
28 * @param inverted Optional boolean whichspecifies
29 * if colours should be inverted. Defaults to false.
30 * @param threshValue Optional number which defines threshold value from 0 to 1.
31 * Defaults to 0.5.
32 * @return A 3d tensor of shape [imageHeight,imageWidth, depth], which
33 * contains binarized image.
34 */
35declare function threshold_(image: Tensor3D | TensorLike, method?: string, inverted?: boolean, threshValue?: number): Tensor3D;
36export declare const threshold: typeof threshold_;
37export {};