export interface PixelCropArea {
    x: number;
    y: number;
    width: number;
    height: number;
}
export interface CropImageExportOptions {
    fileName?: string;
    quality?: number;
    rotation?: number;
    type?: string;
}
export declare class CropImageLoadError extends Error {
    readonly message: string;
    private readonly __brand;
    constructor(cause?: unknown);
}
export declare class CropImageEnvironmentError extends Error {
    readonly message: string;
    private readonly __brand;
    constructor();
}
export declare class CropImageExportError extends Error {
    readonly message: string;
    private readonly __brand;
    constructor();
}
export declare class CropImageUnknownError extends Error {
    readonly message: string;
    private readonly __brand;
    constructor(cause?: unknown);
}
export type CropImageError = CropImageLoadError | CropImageEnvironmentError | CropImageExportError | CropImageUnknownError;
export type CropResult<T> = {
    success: true;
    data: T;
} | {
    success: false;
    error: CropImageError;
};
export declare function cropImageToCanvas(imageSource: string, cropArea: PixelCropArea, options?: CropImageExportOptions): Promise<CropResult<HTMLCanvasElement>>;
export declare function cropImageToBlob(imageSource: string, cropArea: PixelCropArea, options?: CropImageExportOptions): Promise<CropResult<Blob>>;
export declare function cropImageToFile(imageSource: string, cropArea: PixelCropArea, options?: CropImageExportOptions): Promise<CropResult<File>>;