import { CBARProcessNode } from "./CBARProcessNode";
import { CBARFrame } from "../CBARFrame";
import { CBARPipeline } from "./CBARPipeline";
import { Size } from "mirada";
export declare type CBARClassifierNodeConfig = {
    classifierPath: string;
    maxRegions?: number;
    updateMS?: number;
    scale?: number;
    minSize?: Size | undefined;
    maxSize?: Size | undefined;
};
export declare type _CBARClassifierNodeConfig = {
    classifierPath: string;
    maxRegions: number;
    updateMS: number;
    scale: number;
    minSize?: Size | undefined;
    maxSize?: Size | undefined;
};
export declare class CBARClassifierNode extends CBARProcessNode {
    config: _CBARClassifierNodeConfig;
    constructor(context: CBARPipeline, _config: CBARClassifierNodeConfig);
    private _classifier;
    private _tracker;
    private _lastExecTime?;
    private _busy;
    update(frame: CBARFrame): void;
    private _featureAspectRatio;
    private detect;
    debug(canvas: HTMLCanvasElement): void;
    destroy(): void;
}