How should I create face detection web application which capture photo and save when face comes in-front of camera.
Which technology currently available to achieve this.
Please Help...
I've been using a wonderful solution called tracking.js (You can find it here). It's simple and wonderful.
Here's an example of how I use it in my code:
var trackerTask;
var tracker = new tracking.ObjectTracker('face');
tracker.setInitialScale(4);
tracker.setStepSize(2);
tracker.setEdgesDensity(0.1);
trackerTask = tracking.track('#vid', tracker, { camera: true })
tracker.on('track', function (event) {
// Do stuff when face was detected
});
// To stop tracking:
setTimeout(function () {
trackerTask.stop();
}, 500);
In the above example, replace #vid with your HTML5 <video> element.
Related
I am passing proper latitude and longitude to the map but it shows old map, having old lat lng. I know I am doing something wrong in this, but I can't figure out it. My project in ionic framework and for map I am using this plugin map plugin
This my html code
<div style="width:100%;height:200px" id="mapDisplay"></div>
This my angularJS code
var getLat = $scope.dealer.lat;
var getLng = $scope.dealer.lng;
var address = $scope.dealer.address;
var mapDiv = document.getElementById("mapDisplay");
const myGeoLocation = new plugin.google.maps.LatLng(getLat,getLng);
var map = plugin.google.maps.Map.getMap(mapDiv, {
'camera': {
'latLng': myGeoLocation,
'zoom': 15
}
});
map.addEventListener(plugin.google.maps.event.MAP_READY, function() {
map.addMarker({
'position': myGeoLocation,
'title': address
}, function(marker) {
marker.showInfoWindow();
});
});
From the docs of the map plugin you are using
This plugin generates only one map instance using the Map.getMap()
method. In general, you may want to create multiple maps, but this
plugin doesn't allow it.
So your plugin.google.maps.Map.getMap is only grabbing the existing instance, not creating a new one and the plugin.google.maps.event.MAP_READY is only fired once, the first time. However looking at the source code it looks like the instance exposes a remove method which you can use to destroy the existing instance and create a new one with the new sets of coordinates when the callback is called, e.g: map.remove(function() { /** reset map coordinates **/ }
** Extra **
If you just need to display a map with a set of coordinates you can do it using the native app by passing lat/lon to the $cordovaInAppBrowser plugin. As an example for iOS and Android you'd have the following:
iOS
$cordovaInAppBrowser.open('maps://?q=<latitude>,<longitude>', '_system');
Android
$cordovaInAppBrowser.open('geo:0,0?q=<latitude>,<longitude>', '_system');
And finally you need to enable the geo uri in your config.xml like so:
<allow-intent href="geo:*" />
The plugin doesn't allow to create multiple maps instance More detail.
But you can achieve this by using this code
var map = plugin.google.maps.Map.getMap(div);
map.clear();
map.off();
map.trigger("test");
map.addEventListener(plugin.google.maps.event.MAP_READY);
I am working on integrating BrightCove into an Ionic App (allows HTML and JS/Angular to run as a native app on mobile devices).
The app will play videos and allow user's to download the video to save the user's device, I can get the app to play the video but am having issues getting the
Media API to run the 'find_video_by_id' call.
So I have a download button which triggers the following function
_this.downloadBrightcoveVideo = () => {
let searchParams = {}
BCMAPI.token = 'xxxx..'
BCMAPI.callback = 'useDownloadLink'
BCMAPI.command = 'find_video_by_id'
searchParams.video_id = 1234567890
searchParams.media_delivery = 'HTTP'
searchParams.video_fields = 'FLVURL'
BCMAPI.find (BCMAPI.command, searchParams)
}
where token and video_id are set to my video and URL Access token.
I have tried setting the useDownloadLink function as below
let useDownloadLink = function () { console.log ("I'm Alive") }
or
function useDownloadLink () { console.log ("I'm Alive") }
or
_this. useDownloadLink = () => { console.log ("I'm Alive") }
Every time I run the code I get the error below, even though I have useDownloadLink above the download function
Uncaught ReferenceError: useDownloadLink is not defined
I have tried several variations now and nothing is working, any solution would be gratefully received.
Thanks in advance,
Áine
So after a bit of Google-ing came to the conclusion it was better to use BrightCove's CMS Api to achieve the results I wanted, once going through the api it was actually pretty simple..
Hope that helps someone else :D
Happy Coding!
If for example, my wifi goes offline, in leaflet i see new map areas grey but no notification about what really happening.
if i open the console i see:
GET https://a.tiles.mapbox.com/v4/image.png?access_token=correct_token
net::ERR_INTERNET_DISCONNECTED
anyone knows a way to catch such events and displaying a custom warning?
I already tried catching:
$scope.$watch('tileerror', function (error, tile) {
alert("No coonection");
});
p.s. using angular-leaflet-directive
EDIT: as pointed out by Ghybs in the comments there is indeed a tileerror event firing from L.TileLayer, however as far as i can see it's not implemented in Angular Leaflet Directive, please correct me if i'm wrong.
L.TileLayer does have an option for setting a replacement image when the tile cannot be loaded called: errorTileUrl:
URL to the tile image to show in place of the tile that failed to load.
new L.TileLayer(URL, {
errorTileUrl: 'error.png'
});
http://leafletjs.com/reference.html#tilelayer-errortileurl
If you need to preform some logic when tiles fail to load you could overwrite L.TileLayer's _tileOnError method:
L.TileLayer.include({
_tileOnError: function (done, tile, e) {
// Do your stuff
alert('whooops!');
// Leaflet stuff
var errorUrl = this.options.errorTileUrl;
if (errorUrl) {
tile.src = errorUrl;
}
done(e, tile);
}
});
https://github.com/Leaflet/Leaflet/blob/master/src/layer/tile/TileLayer.js#L96
I'm using CamanJS to add some image processing features to my website, it's a simple and great library but still its documentation is somehow poor.
I'm uploading an image to my website, then I'm applying all the effects on the image uploaded (it's not saved on the Server, I'm modifying it on the client side).
as shown on the official website (http://camanjs.com/guides/#BasicUsage):
function invertColors() {
Caman("#original-img", function () {
this.invert().render();
});
}
The problem is when I re-upload a new image. apparently CamanJS keeps the first image cashed, and the new image is not shown.
when I read about this issue the only place I found an answer for this is here:
CamanJS - change underlying canvas after applying filters/manipulations
but I'm sorry the answer was not that clear for me. so I have to ask it again.
the answer suggested to use reloadCanvasData() but I didn't know exactly how to use it, I tried so many ways but all went in vain!
I tried:
Caman("#original-img", function () {
this.reloadCanvasData();
});
and:
Caman.reloadCanvasData();
etc.
Can anyone provide a working example?
Thanks
I thought I'd help those who came here looking at how to replace PIXEL data rather than just a loaded image:
can1 = document.getElementById("MyCanvas1");
ctx1 = can1.getContext("2d");
var c = <do what ever you need and make a new canvas here>
ctx1.putImageData(c, 0,0); // <---this replaces the pixeldata
Caman("#MyCanvas1", function () {
this.render();
});
This way you can process the image at the pixel level, and then get it back into camanjs.
As a solution what I have done is clear the canvas and have again Inserted an HTML Image tag. before calling Second Image.with camanjs
something like following
function clearCanvas() {
$('#ImageParentDiv').empty();
var htmlTag = '<img src="../images/Loading.gif" id="original-img">';
$('#ImageParentDiv').html(htmlTag);
}
Just call the revert() when you need an original image:
Caman("#original-img", function () {
this.revert();
this.render();
});
I'm creating users in some test. Since it is connected to the backend and create real users I need fixtures. I was thinking of using the browser name to create unique user. However, It has proven to be quite difficult to get to it...
Anyone can point me in the right direction?
Another case of rubber ducking :)
The answer was actually quite simple.
in my onPrepare function I added the following function and it works flawlessly.
browser.getCapabilities().then(function (cap) {
browser.browserName = cap.caps_.browserName;
});
I can get access the name in my test using browser.browserName.
This has changed in version of protractor starting from 3.2 (selenium webdriver 2.52)
Now one should call:
browser.driver.getCapabilities().then(function(caps){
browser.browserName = caps.get('browserName');
}
If you want to avoid the a browser, you may want to do this:
it('User should see a message that he has already been added to the campaing when entering the same email twice', function () {
browser.getCapabilities().then(function (capabilities) {
browserName = capabilities.caps_.browserName;
platform = capabilities.caps_.platform;
}).then(function () {
console.log('Browser:', browserName, 'on platform', platform);
if (browserName === 'internet explorer') {
console.log('IE Was avoided for this test.');
} else {
basePage.email.sendKeys('bruno#test.com');
console.log('Mande el mail');
basePage.subscribe.click().then(function () {
basePage.confirmMessage('Contact already added to target campaign');
});
}
});
});