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MMM-Face-Reco-DNN.js
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MMM-Face-Reco-DNN.js
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/* Magic Mirror
* Module: MMM-Face-Reco-DNN
*
* By Thierry Nischelwitzer http://nischi.ch
* MIT Licensed.
*/
/*global log*/
'use strict';
// eslint-disable-next-line no-undef
Module.register('MMM-Face-Reco-DNN', {
defaults: {
// Logout 15 seconds after user was not detecte anymore, if they will be detected between this 15
// Seconds, they delay will start again
logoutDelay: 15000,
// How many time the recognition starts, with a RasPi 3+ it would be good every 2 seconds
checkInterval: 2000,
// Module set used for when there is no face detected ie no one is in front of the camera
noFaceClass: 'noface',
// Module set used for when there is an unknown/unrecognised face detected
unknownClass: 'unknown',
// Module set used for when there is a known/recognised face detected
knownClass: 'known',
// Module set used for strangers and if no user is detected
defaultClass: 'default',
// Set of modules which should be shown for any user ie when there is any face detected
everyoneClass: 'everyone',
// Set of modules that are always shown - show if there is a face or no face detected
alwaysClass: 'always',
// xml to recognize with haarcascae
cascade: 'modules/MMM-Face-Reco-DNN/model/haarcascade_frontalface_default.xml',
// pre encoded pickle with the faces
encodings: 'modules/MMM-Face-Reco-DNN/model/encodings.pickle',
// Brightness (0-100)
brightness: 0,
// Contrast (0-127)
contrast: 0,
// Rotate camera image (-1 = no rotation, 0 = 90°, 1 = 180°, 2 = 270°)
rotateCamera: -1,
// method of face recognition (dnn = deep neural network, haar = haarcascade)
method: 'dnn',
// which face detection model to use. "hog" is less accurate but faster on CPUs. "cnn" is a more accurate
// deep-learning model which is GPU/CUDA accelerated (if available). The default is "hog".
detectionMethod: 'hog',
// how fast in ms should the modules hide and show (face effect)
animationSpeed: 0,
// Path to Python to run the face recognition (null / '' means default path)
pythonPath: null,
// Boolean to toggle welcomeMessage
welcomeMessage: true,
// Dictionary for person name mapping in welcome message
// Allows for displaying name with complex character sets in welcome message
// e.g. jerome => Jérôme, hideyuki => 英之, mourad => مراد
usernameDisplayMapping: null,
// Save some pictures from recognized people, if unknown we save it in folder "unknown"
// So you can extend your dataset and retrain it afterwards for better recognitions
extendDataset: false,
// if extenDataset is set, you need to set the full path of the dataset
dataset: 'modules/MMM-Face-Reco-DNN/dataset/',
// How much distance between faces to consider it a match. Lower is more strict.
tolerance: 0.6,
// allow multiple concurrent user logins, 0=no, any other number is the maximum number of concurrent logins
multiUser: 0,
// resoltuion of the image
resolution: [1920, 1080],
// width of the image for processing
processWidth: 500,
// output image on mm
outputmm: 0,
// turn on extra debugging 0=no, 1=yes
debug: 0,
// If specified, conditionally run face recognition when a notification with a name as specified by this
// option is received with a boolean true/false payload. A True payload activates face recognition, False
// deactivates it. An empty string here disables this functionality so face recognition always runs. Use for
// exmaple with with MMM-Pir with notification name 'MMM_PIR-SCREEN_POWERSTATUS' to only run face
// recognition when screen is on.
external_trigger_notification: '',
},
timouts: {},
users: [],
userClasses: [],
image: '',
// ----------------------------------------------------------------------------------------------------
start: function () {
this.sendSocketNotification('CONFIG', this.config);
Log.log('Starting module: ' + this.name);
this.config.debug && Log.log(this.config);
// there are 3 states (noface, unknown face, known face). Each of these has classes that allow them
// this configuration defines which classes provide which states
this.config.classes_noface = [this.config.noFaceClass, this.config.defaultClass, this.config.alwaysClass];
this.config.classes_unknown = [this.config.unknownClass, this.config.defaultClass, this.config.everyoneClass, this.config.alwaysClass];
this.config.classes_known = [this.config.knownClass, this.config.everyoneClass, this.config.alwaysClass];
},
// ----------------------------------------------------------------------------------------------------
// Define required translations.
getTranslations: function () {
return {
en: 'translations/en.json',
de: 'translations/de.json',
es: 'translations/es.json',
zh: 'translations/zh.json',
nl: 'translations/nl.json',
sv: 'translations/sv.json',
fr: 'translations/fr.json',
id: 'translations/id.json',
it: 'translations/it.json',
bg: 'translations/bg.json',
ru: 'translations/ru.json',
nb: 'translations/nb.json',
};
},
// ----------------------------------------------------------------------------------------------------
login_user: function (name) {
var thisUserClasses;
var existingClasses;
var newClassList;
this.config.debug && Log.log('User list before login:' + this.users);
Log.log('Logged in user:' + name);
// user not currently logged in so add them to the list of logged in users
this.users.push(name);
this.config.debug && Log.log('User list after login:' + this.users);
if (this.users.length === 1) {
// this is the login of the first user
// this means we are coming from a noface state
existingClasses = this.config.classes_noface;
} else if (this.users.length > 1) {
// there is at least one user already logged in so the list of existing classes comes from this.userClasses
existingClasses = this.get_class_set(this.userClasses);
}
this.config.debug && Log.log('User Classes Before Login');
this.config.debug && Log.log(existingClasses);
// what we do here depends on if we recognise the user or not
if (name === 'unknown') {
// this is the state of an unknown face
// we want to show the new classes allowed by this target state (unknown state)
thisUserClasses = this.config.classes_unknown;
} else {
// this is the state of a known face
// we want to show the new classes allowed by this target state (known state)
// copy the config classes to a new array
var newClasses = this.config.classes_known.slice();
this.config.debug && Log.log('Adding ' + name + ' to classlist:' + this.config.classes_known);
// add the specific classes for this new known user
newClasses.push(name.toLowerCase());
thisUserClasses = newClasses;
}
// add the new user's classes to the list of user classes
this.userClasses[name] = thisUserClasses;
this.config.debug && Log.log('User Classes After Login');
this.config.debug && Log.log(this.userClasses);
// so the full list of all classes that should be shown is now in userClasses
newClassList = this.get_class_set(this.userClasses);
// show all the new classes from the new user except the existing classes
this.show_modules(newClassList, existingClasses);
// we want to hide the old classes from the previous state, except those shown by the new user
this.hide_modules(existingClasses, newClassList);
// now show a welcome message
if (this.config.welcomeMessage) {
var person = name;
var welcomeMessage;
// We get unknown from Face-Reco and then it should be translated to stranger
if (person === 'unknown') {
person = this.translate('stranger');
welcomeMessage = this.translate('unknownlogin').replace('%person', person);
} else {
// set up the slightly different message for a known person, attempt to find a Name mapping for display purposes
var personDisplayName = person;
if (this.config.usernameDisplayMapping && this.config.usernameDisplayMapping[person]) {
personDisplayName = this.config.usernameDisplayMapping[person];
}
welcomeMessage = this.translate('knownlogin').replace('%person', personDisplayName);
}
this.sendNotification('SHOW_ALERT', {
type: 'notification',
message: welcomeMessage,
title: this.translate('title'),
});
}
},
// ----------------------------------------------------------------------------------------------------
logout_user: function (name) {
this.config.debug && Log.log('User list before logout:' + this.users);
Log.log('Logged out user:' + name);
// just double check the the user we are logging out is actually logged in
if (this.users.includes(name)) {
// it does include the user so all good
// remove the user from the list of users
this.users = this.users.filter(function (u) {
return u !== name;
});
this.config.debug && Log.log('User list after logout:' + this.users);
// remove the users property from the list of classes
// copy the class list to another array before deleting the logging out user
this.config.debug && Log.log('User Classes Before Logout');
this.config.debug && Log.log(this.userClasses);
var oldUserClasses = Object.assign({}, this.userClasses); // assign works doing a shallow copy because the object is simply enough
// delete the user from the list of user classes
delete this.userClasses[name];
// see how many users are left
if (this.users.length === 0) {
// no users left, so we are going to the noface state
// the name of the logging out user determines what state we are coming from
// what we do here depends on if we recognise the user or not
if (name === 'unknown') {
// this is the transition from the unknown state to the noface state
// we want to show the new classes allowed by this target state (noface state)
this.show_modules(this.config.classes_noface, this.config.classes_unknown);
// we want to hide the old classes from the previous state (unknown state)
this.hide_modules(this.config.classes_unknown, this.config.classes_noface);
} else {
// this is the transition from the known state to the noface state
// we want to show the new classes allowed by this target state (noface state)
// copy the config classes to a new array
var oldClasses = this.config.classes_known.slice();
this.config.debug && Log.log('Adding ' + name + ' to classlist: ' + this.config.classes_known);
oldClasses.push(name.toLowerCase());
// we want to show the new classes allowed by this target state (noface state)
this.show_modules(this.config.classes_noface, oldClasses);
// we want to hide the old classes from the previous state (known state)
this.hide_modules(oldClasses, this.config.classes_noface);
}
} else {
// in this transition we go from multiple users to a lower number of users, leaving one or more logged in
// to do this properly you have to go through all the remaining users and work out what classes would be left after we remove this one user
this.config.debug && Log.log('User Classes Remaining');
this.config.debug && Log.log(this.userClasses);
// build shownClasses to be the list of classes that are showing now
var shownClasses = this.get_class_set(oldUserClasses);
this.config.debug && Log.log('Returned Showing List of Classes');
this.config.debug && Log.log(shownClasses);
// build remainingClasses to be the list of classes that still should be shown
var remainingClasses = this.get_class_set(this.userClasses);
this.config.debug && Log.log('Returned Remaining List of Classes');
this.config.debug && Log.log(remainingClasses);
this.config.debug && Log.log('Hide:' + shownClasses + ' except:' + remainingClasses);
this.hide_modules(shownClasses, remainingClasses);
}
} else {
// not how we get to here, but we do. It should be stopped in the socketNotificationReceived function but somehow either something else calls this function or that code does not work
this.config.debug && Log.log('Detected a logout_user call for ' + name + ' but they were not logged in.');
}
},
// ----------------------------------------------------------------------------------------------------
get_class_set: function (userClasses) {
// all the classes from all the logged in users are in this.userClasses like
// this.userClasses[user1]=array of classes
// this.userClasses[user2]=array of classes
// etc
var classList = [];
var finalClasses = [];
Object.values(userClasses).forEach(function (classes) {
// classes is an array of classes for a user
classes.forEach(val => (classList[val] = 1));
});
// classList should now have a unique list of the classes as properties
Object.keys(classList).forEach(function (val) {
// val is a string which is the name of a class
finalClasses.push(val);
});
return finalClasses;
},
// ----------------------------------------------------------------------------------------------------
show_modules: function (showClasses, exceptClasses) {
// show modules with "showClasses" except for those with "exceptClasses"
var self = this;
this.config.debug && Log.log('Showing all new classes:' + showClasses + ', except old classes:' + exceptClasses);
// eslint-disable-next-line no-undef
MM.getModules()
.withClass(showClasses)
.exceptWithClass(exceptClasses)
.enumerate(function (module) {
module.show(
self.config.animationSpeed,
function () {
Log.log(module.name + ' is shown.');
},
{
lockString: self.identifier,
},
);
});
},
// ----------------------------------------------------------------------------------------------------
hide_modules: function (hideClasses, exceptClasses) {
// hide modules with "hideClasses" except for those with "exceptClasses"
var self = this;
// there must be a fancier javascript way to do this if with just runs that same getModules code but with different collections of selectors
// look to fix this later
if (hideClasses === 0) {
this.config.debug && Log.log('Hiding all classes except new classes:' + exceptClasses);
// eslint-disable-next-line no-undef
MM.getModules()
.exceptWithClass(exceptClasses)
.enumerate(function (module) {
module.hide(
self.config.animationSpeed,
function () {
Log.log(module.name + ' is hidden.');
},
{
lockString: self.identifier,
},
);
});
} else if (exceptClasses === 0) {
this.config.debug && Log.log('Hiding old classes:' + hideClasses);
// eslint-disable-next-line no-undef
MM.getModules()
.withClass(hideClasses)
.enumerate(function (module) {
module.hide(
self.config.animationSpeed,
function () {
Log.log(module.name + ' is hidden.');
},
{
lockString: self.identifier,
},
);
});
} else {
this.config.debug && Log.log('Hiding all old classes:' + hideClasses + ', except new classes:' + exceptClasses);
// eslint-disable-next-line no-undef
MM.getModules()
.withClass(hideClasses)
.exceptWithClass(exceptClasses)
.enumerate(function (module) {
module.hide(
self.config.animationSpeed,
function () {
Log.log(module.name + ' is hidden.');
},
{
lockString: self.identifier,
},
);
});
}
},
// ----------------------------------------------------------------------------------------------------
socketNotificationReceived: function (notification, payload) {
var self = this;
var user;
if (notification === 'camera_image') {
this.image = payload.image;
this.updateDom(this.config.animationSpeed);
}
// somebody has logged in
if (payload.action === 'login') {
var loginCount = 0;
for (user of payload.users) {
if (user != null) {
// if there are currently no users logged in OR we allow multiple users
this.config.debug && Log.log('Number of logged in users:' + this.users.length + ', Allowed Number of Users:' + this.config.multiUser);
if (this.users.length === 0 || this.users.length < this.config.multiUser) {
// check if the user is already logged in
if (!this.users.includes(user)) {
// run the login procedure
this.login_user(user);
// increment the counter
loginCount++;
} else {
this.config.debug && Log.log('Detected ' + user + ' again.');
}
} else {
this.config.debug &&
Log.log(
'Detected a login event for ' + user + ' but multiple concurrent logins is limited to ' + this.config.multiUser + ' and ' + this.users + ' is already logged in.',
);
}
// clear any timeouts the user might have so that they stay logged in
if (this.timouts[user] != null) {
this.config.debug && Log.log('Clearing timeouts for ' + user);
this.config.debug && Log.log('Remaining timeouts BEFORE:');
this.config.debug && Log.log(this.timouts);
clearTimeout(this.timouts[user]);
this.config.debug && Log.log('Remaining timeouts AFTER:');
this.config.debug && Log.log(this.timouts);
}
}
}
if (loginCount > 0) {
// We still need to broadcast MM notification for backward compatability.
this.config.debug && Log.log('Detected ' + loginCount + ' logins.');
this.sendNotification('USERS_LOGIN', payload.users);
}
} else if (payload.action === 'logout') {
var logoutCount = 0;
for (user of payload.users) {
if (user != null) {
// see if user is even logged in, since you can only log out if you are actually logged in
if (this.users.includes(user)) {
this.config.debug && Log.log('Setting logout timer for ' + user + ' for ' + this.config.logoutDelay + 'ms');
this.timouts[user] = setTimeout(function () {
// Broadcast notificaiton that we are about to hide modules.
// Ideally this would be USERS_LOGOUT to be consistent with hide/show timer, but to prevent regression using a new type.
self.sendNotification('USERS_LOGOUT_MODULES', user);
self.logout_user(user);
logoutCount++;
}, this.config.logoutDelay);
} else {
this.config.debug && Log.log('Detected a logout event for ' + user + ' but they were not logged in.');
}
}
}
if (logoutCount > 0) {
this.config.debug && Log.log('Detected ' + logoutCount + ' logouts.');
this.sendNotification('USERS_LOGOUT', payload.users);
}
}
},
// ----------------------------------------------------------------------------------------------------
notificationReceived: function (notification, payload, _sender) {
// Event if DOM is created
if (notification === 'DOM_OBJECTS_CREATED') {
// at startup modules will already be shown
// we want to hide modules (by class) that are not supposed to be shown
// in this case we want to hide any class except those which bring us to the noface state
// this list of classes is contained in this.classes_noface
this.hide_modules(0, this.config.classes_noface);
}
// load logged in users
if (notification === 'GET_LOGGED_IN_USERS') {
Log.log(this.name + ' get logged in users ' + this.users);
this.sendNotification('LOGGED_IN_USERS', this.users);
}
// If an external trigger notification name is specified, forward
// notification payload received on that notification name.
if (this.config.external_trigger_notification !== "" &&
notification === this.config.external_trigger_notification) {
this.sendSocketNotification(notification, payload);
}
},
getDom: function () {
const wrapperEl = document.createElement('div');
wrapperEl.classList.add('face-recognition');
const imageEl = document.createElement('img');
imageEl.classList.add('face-recognition-image');
imageEl.src = 'data:image/jpg;base64,' + this.image;
wrapperEl.appendChild(imageEl);
return wrapperEl;
},
});