/**
 * Image support utilities for VizHub Runtime
 * Handles detection, MIME type resolution, and data URL conversion for image files
 */
export declare const IMAGE_EXTENSIONS: readonly [".jpg", ".jpeg", ".png", ".gif", ".svg", ".webp", ".bmp"];
/**
 * Checks if a filename represents an image file based on its extension
 */
export declare const isImageFile: (filename: string) => boolean;
/**
 * Gets the appropriate MIME type for an image file based on its extension
 */
export declare const getImageMimeType: (filename: string) => string;
/**
 * Converts image file content to a data URL for use in HTML/CSS
 */
export declare const convertImageToDataURL: (filename: string, content: string) => string;
/**
 * Processes HTML content by replacing image src attributes with data URLs
 * when the corresponding image files are available in the file collection
 */
export declare const processHTMLImages: (html: string, files: Record<string, string>) => string;
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