import RTKMeeting from '@cloudflare/realtimekit';
import { SegmentationConfig } from '../core/helpers/segmentationHelper';
import { TFLite } from '../core/hooks/useTFLite';
export type BlendMode = 'screen' | 'linearDodge';
export type JointBilateralFilterConfig = {
    sigmaSpace: number;
    sigmaColor: number;
};
export type PostProcessingConfig = {
    smoothSegmentationMask: boolean;
    jointBilateralFilter: JointBilateralFilterConfig;
    coverage: [number, number];
    lightWrapping: number;
    blendMode: BlendMode;
};
export interface InitParams {
    meeting: RTKMeeting;
    segmentationConfig: SegmentationConfig;
    postProcessingConfig: PostProcessingConfig;
    tflite: TFLite;
}
export default class RealtimeKitVideoBackgroundTransformer {
    #private;
    private constructor();
    /**
     * The `init` method can be used to instantiate the RealtimeKitVideoBackgroundTransformer class.
     * This returns an instance of `RealtimeKitVideoBackgroundTransformer`,
     *  which can be used to create video middlewares for RealtimeKit Meetings.
     */
    static init({ meeting, segmentationConfig: passedSegmentationConfig, postProcessingConfig: passedPostProcessingConfig, }: {
        meeting: RTKMeeting;
        segmentationConfig?: Partial<SegmentationConfig>;
        postProcessingConfig?: Partial<PostProcessingConfig>;
    }): Promise<RealtimeKitVideoBackgroundTransformer>;
    /**
     * Tells if the current browser supports this middleware or not
     * @returns isSupported
     */
    static isSupported(): boolean;
    /**
     * Expects a static background image url and returns a video middleware
     * which adds the given image url as the background.
     * @param staticBackgroundImageURL
     * @returns VideoMiddleware
     */
    createStaticBackgroundVideoMiddleware(staticBackgroundImageURL: string): Promise<import("../common/BackgroundTransformer").VideoMiddleware>;
    createBackgroundBlurVideoMiddleware(blurLength?: number): Promise<import("../common/BackgroundTransformer").VideoMiddleware>;
    destruct(): void;
}