image-js/lib/utils/interpolateBorder.d.ts

Image processing and manipulation in JavaScript

import type { BorderInterpolationFunction } from './utils.types.js';
export declare const BorderType: {
    readonly CONSTANT: "constant";
    readonly REPLICATE: "replicate";
    readonly REFLECT: "reflect";
    readonly WRAP: "wrap";
    readonly REFLECT_101: "reflect101";
};
export type BorderType = (typeof BorderType)[keyof typeof BorderType];
/**
 * Pick the border interpolation algorithm.
 * The different algorithms are illustrated here:
 * @see {@link https://vovkos.github.io/doxyrest-showcase/opencv/sphinx_rtd_theme/enum_cv_BorderTypes.html}
 * @param type - The border type.
 * @param value - A pixel value if BorderType.CONSTANT is used.
 * @returns The border interpolation function.
 */
export declare function getBorderInterpolation(type: BorderType, value: number | number[]): BorderInterpolationFunction;
/**
 * Interpolate using a constant point.
 * @param point - The point to interpolate.
 * @param length  - The length of the image.
 * @returns The interpolated point.
 */
export declare function interpolateConstantPoint(point: number, length: number): number;
/**
 * Interpolate by replicating the border.
 * @param point - The point to interpolate.
 * @param length - The length of the image.
 * @returns The interpolated point.
 */
export declare function interpolateReplicatePoint(point: number, length: number): number;
/**
 * Interpolate by reflecting the border.
 * @param point - The point to interpolate.
 * @param length - The length of the image.
 * @returns The interpolated point.
 */
export declare function interpolateReflectPoint(point: number, length: number): number;
/**
 * Interpolate by wrapping the border.
 * @param point - The point to interpolate.
 * @param length - The length of the image.
 * @returns The interpolated point.
 */
export declare function interpolateWrapPoint(point: number, length: number): number;
/**
 * Interpolate by reflecting the border.
 * @param point - The point to interpolate.
 * @param length - The length of the image.
 * @returns The interpolated point.
 */
export declare function interpolateReflect101Point(point: number, length: number): number;
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