import { type ResizeRule, type SizeName } from "@paroicms/public-anywhere-lib";
export declare function generateImageSlug(fromName?: string): string | undefined;
export declare function applyPixelRatioToSizeName(renderedSizeName: SizeName, pixelRatio: number): SizeName;
export declare function applyPixelRatioToResizeRule(renderedResizeRule: ResizeRule, pixelRatio: number): ResizeRule;
export declare function rawToRenderedSize(rawResizeR: {
    rawWidth: number;
    rawHeight: number;
}, pixelRatio: number): {
    width: number;
    height: number;
};
export declare function renderedToRawSize(renderedSize: {
    width: number;
    height: number;
}, pixelRatio: number): {
    rawWidth: number;
    rawHeight: number;
};
//# sourceMappingURL=server-image-cache-engine.helper.d.ts.map