import { NgImage } from './image-model';
import { ImageUtilityService } from './image-utility.service';
import { Observable } from 'rxjs';
import { ResizeOptions } from './resize-options';
import * as i0 from "@angular/core";
export declare class ImageCompressService {
    private imageUtilityService;
    constructor(imageUtilityService: ImageUtilityService);
    private compressImageObject;
    /**
     * compressImage returns an observable of the original image with compressed image
     * set on NgImage.compressedImage
     *
     * @param sourceImage the source image to compress
     * @param options object that describes the resize options
     * */
    compressImage(sourceImage: NgImage, options: ResizeOptions): Observable<NgImage>;
    compressImageList(fileList: FileList, option?: ResizeOptions): Observable<NgImage>;
    compressImageArray(fileList: File[], option?: ResizeOptions): Observable<NgImage>;
    compressNgImages(images: NgImage[], option?: ResizeOptions): Observable<NgImage>;
    static ɵfac: i0.ɵɵFactoryDeclaration<ImageCompressService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ImageCompressService>;
}