import { Pixels, Track } from "./Quantity.js";
/**
 * Relates a scan to the tracker bar it was read with.
 *
 * Scanning software numbers the hole columns it finds by their position
 * in the image, so its numbering is offset by however far the roll lay
 * from the edge of the scanner bed. Calibrating means finding that offset,
 * usually from a landmark such as the rewind perforation.
 *
 *     column      = offset + scannerTrack * separation
 *     trackerBar  = scannerTrack + shift
 * @category Format types
 */
export interface TrackCalibration {
    unit: 'px';
    /** Image column of the scanning software's track 0. */
    offset: Pixels;
    /** Distance between the centres of adjacent tracks. */
    separation: Pixels;
    /** Added to the scanning software's numbering to reach the tracker bar. */
    shift: Track;
}
/**
 * Image column at the centre of a tracker bar track.
 * @internal
 */
export declare const columnOf: (position: Track, calibration: TrackCalibration) => Pixels;
/**
 * Tracker bar track covering an image column, unrounded.
 * @internal
 */
export declare const trackAt: (column: Pixels, calibration: TrackCalibration) => Track;
/**
 * The columns covered by a run of tracks, from the outer edge of the
 * first to the outer edge of the last.
 * @internal
 */
export declare const columnsOf: (from: Track, to: Track, calibration: TrackCalibration) => {
    from: Pixels;
    to: Pixels;
    width: Pixels;
};