/**
 * @license
 * Copyright 2021 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
 *
 * https://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 { Padding } from './interfaces/common_interfaces';
import { Detection } from './interfaces/shape_interfaces';
/**
 * Adjusts detection locations on the letterboxed image to the corresponding
 * locations on the same image with the letterbox removed (the input image to
 * the graph before image transformation).
 *
 * @param detections A list of detection boxes on an letterboxed image.
 * @param letterboxPadding A `padding` object representing the letterbox padding
 *     from the 4 sides: left, top, right, bottom, of the letterboxed image,
 *     normalized by the letterboxed image dimensions.
 * @returns detections: A list of detection boxes representing detections with
 *     their locations adjusted to the letterbox-removed (non-padded) image.
 */
export declare function removeDetectionLetterbox(detections: Detection[], letterboxPadding: Padding): Detection[];