react-webcamera/lib/filter-demos/filters.js

React webcamera component with direct access to the camera data

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.grayScale = grayScale;
exports.filterBlue = filterBlue;
exports.filterRed = filterRed;
function grayScale(data) {
  for (var i = 0; i < data.length; i += 4) {
    var r = data[i];
    var g = data[i + 1];
    var b = data[i + 2];
    var brightness = 3 * r + 4 * g + b >>> 3;
    data[i] = brightness;
    data[i + 1] = brightness;
    data[i + 2] = brightness;
  }
  return data;
}

function filterBlue(data) {
  for (var i = 0; i < data.length; i += 4) {
    var b = data[i + 2];
    b = 0;
    data[i + 2] = b;
  }
  return data;
}

function filterRed(data) {
  for (var i = 0; i < data.length; i += 4) {
    var r = data[i];
    r = 0;
    data[i] = r;
  }
  return data;
}