import { CropperOptions, ImageCroppedEvent } from '../interfaces';
import { CropperState } from '../component/cropper.state';
export declare class CropService {
    crop(cropperState: CropperState, output: 'blob'): Promise<ImageCroppedEvent> | null;
    crop(cropperState: CropperState, output: 'base64'): ImageCroppedEvent | null;
    private cropToBlob;
    private getCanvasTranslate;
    private getRatio;
    private getImagePosition;
    private getOffsetImagePosition;
    getResizeRatio(width: number, height: number, options: CropperOptions): number;
    getQuality(options: CropperOptions): number;
}