pixel-utils/dist/cjs/is-no-data/index.js

Utility Functions for Pixels

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = isNoData;
/**
 * @description check if an RGB pixel is a no data pixel
 * @param {number} no_data_value
 * @param {number[]} pixel - an array of 4 numbers representing [R, G, B, A]
 * @returns {boolean} whether the pixel is a no data pixel
 */
function isNoData(no_data_value, pixel) {
  return pixel[0] === no_data_value;
}