image-js/lib/image/operator/getSeparatedKernel.js

Image processing and manipulation in JavaScript

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = getSeparatedKernel;
var _mlMatrix = require("ml-matrix");
function getSeparatedKernel(kernel) {
  const svd = new _mlMatrix.SVD(kernel, {
    autoTranspose: true
  });
  if (svd.rank !== 1) return null;
  const s = Math.sqrt(svd.s[0]);
  const v = svd.U.to2DArray().map(v => v[0] * s);
  const h = svd.V.to2DArray().map(h => h[0] * s);
  return [v, h];
}