export declare enum InterpolationMethod {
    Nearest = "nearest"
}
/**
 * Resizes an image from the source dimensions to target dimensions.
 *
 * @param {Uint8ClampedArray} imageData The source image data in Uint8ClampedArray format.
 * @param {number} srcWidth The width of the source image.
 * @param {number} srcHeight The height of the source image.
 * @param {number} targetWidth The width of the target image.
 * @param {number} targetHeight The height of the target image.
 *
 * @returns {Uint8ClampedArray} The target image data in Uint8ClampedArray format.
 *
 * @example
 * const targetData = resizeImage(sourceData, 800, 600, 400, 300);
 *
 * @note The function uses a "nearest neighbor" algorithm for resizing,
 * which is fast but might not provide the best quality for all images.
 */
export declare const resizeImage: (imageData: Uint8ClampedArray, srcWidth: number, srcHeight: number, targetWidth: number, targetHeight: number) => Uint8ClampedArray;
/**
 * Upsamples an image using the bilinear interpolation method. The input image is expected to be in
 * Float32Array format. The output image is in Uint8ClampedArray format. The input image is expected
 * to be in the [0, 1] range. The output image is in the [0, 255] range.
 *
 * @param {Float32Array} input The input image data in Float32Array format.
 * @param {number} srcWidth The width of the source image.
 * @param {number} srcHeight The height of the source image.
 * @param {number} targetWidth The width of the target image.
 * @param {number} targetHeight The height of the target image.
 *
 * @returns {Uint8ClampedArray} The upsampled image data in Uint8ClampedArray format.
 *
 */
export declare function bilinearUpsample(input: Float32Array, srcWidth: number, srcHeight: number, targetWidth: number, targetHeight: number): Uint8ClampedArray;
/**
 * Upsamples an image using the Lanczos3 interpolation method. The input image is expected to be in
 * Float32Array format. The output image is in Uint8ClampedArray format. The input image is expected
 * to be in the [0, 1] range. The output image is in the [0, 255] range.
 *
 * @param {Float32Array} input The input image data in Float32Array format.
 * @param {number} srcWidth The width of the source image.
 * @param {number} srcHeight The height of the source image.
 * @param {number} targetWidth The width of the target image.
 * @param {number} targetHeight The height of the target image.
 *
 * @returns {Uint8ClampedArray} The upsampled image data in Uint8ClampedArray format.
 */
export declare function lanczos3Upsample(input: Float32Array, srcWidth: number, srcHeight: number, targetWidth: number, targetHeight: number): Uint8ClampedArray;
export declare function compileShader(gl: WebGL2RenderingContext, shader_type: number, source: string): WebGLShader;
export declare function linkProgram(gl: WebGL2RenderingContext, vertex_shader: WebGLShader, fragment_shader: WebGLShader): WebGLProgram;
/**
 * Determines if a URI is already resolved.
 * A resolved URI is either:
 *  - A blob URL (starts with 'blob:')
 *  - A fully qualified URL (e.g., http:// or https://)
 *
 * @param uri - The URI to check.
 * @returns Whether the URI is already resolved.
 */
export declare function isResolvedUri(uri: string): boolean;
export declare const toAbsoluteURI: (relativeURL: string, baseURL?: string) => string;