/** A 2D point in canvas pixel coordinates. */
export type Coordinate = {
    /** X coordinate in pixels, measured from the left edge. */
    x: number;
    /** Y coordinate in pixels, measured from the top edge. */
    y: number;
};
/** The four corner points of an axis-aligned rectangle, e.g. a contour bounding box. */
export type Points = {
    /** Top-left corner. */
    topLeft: Coordinate;
    /** Top-right corner. */
    topRight: Coordinate;
    /** Bottom-left corner. */
    bottomLeft: Coordinate;
    /** Bottom-right corner. */
    bottomRight: Coordinate;
};
/**
 * An axis-aligned bounding box with exclusive `x1` / `y1`.
 * Width is `x1 - x0`; height is `y1 - y0`.
 */
export type BoundingBox = {
    /** Left edge, inclusive. */
    x0: number;
    /** Top edge, inclusive. */
    y0: number;
    /** Right edge, exclusive. */
    x1: number;
    /** Bottom edge, exclusive. */
    y1: number;
};