import { Image } from '../core/Image';
import { Keypoint } from '../core/Keypoint';
export declare class BRISK {
    private _T;
    private _octaveCount;
    private _layers;
    private _scale;
    /**
     * Parameters
     */
    private basicSize;
    private scales;
    private scalerange;
    private nRot;
    private sizeList;
    private scaleList;
    private radiusList;
    private numberList;
    T: number;
    octaveCount: number;
    constructor(octaveCount?: number, patternScale?: number);
    computeKeypointsNoOrientation(image: Image): Keypoint[];
    computeDescriptorsAndOrientation(image: Image): Keypoint[];
    getFeatures(image: any): Keypoint[];
    private generateKernel(dMax, dMin);
    private createLayer(index, mode, scale);
}