/**
 * Sample distance (meters) from a ROS2 depth image topic.
 * Copied from OpenClaw adapter so we don't depend on the full plugin.
 */
import type { RosTransport } from "@agenticros/core";
export declare function sampleDepthMeters(width: number, height: number, step: number, encoding: string, data: Uint8Array, centerFraction?: number, isBigEndian?: boolean): number[];
export interface DepthSampleResult {
    distance_m: number;
    median_m: number;
    valid: boolean;
    topic: string;
    encoding: string;
    width: number;
    height: number;
    sample_count: number;
    min_m: number;
    max_m: number;
}
export declare function getDepthDistance(transport: RosTransport, topic: string, timeoutMs?: number): Promise<DepthSampleResult>;
//# sourceMappingURL=depth.d.ts.map