Laserphile/JS-Telecortex-2-Server

/**
 * Build a gamma table for a particular value
 * Stolen from https://github.com/ajfisher/node-pixel/blob/9f956c26cd5dbe16f6066eb659cf08350c8b3fea/lib/pixel.js#L401
 */
export const createGammaTable = (steps, gamma) =>
  Array.from({ length: steps }).map((_, i) => Math.floor((i / 255.0) ** gamma * 255 + 0.5));