Package: collective.takeaportrait
This product use super-modern browser feature foraccessing the user’s webcam(if any) to directly save a
new portrait photo inside Plone personal preferences.ContentsHow it worksFace detectionPlone integrationBrowsers supportMobileChangelog0.2.0 (2014-02-20)0.1.0 (2013-11-10)How it worksJust add the product to your buildout and activate thecollective.takeaportraitadd-on.After that you will probably see a new button inside your “Personal Information” labeled “Take a photo”.
If you don’t see any new button your browser will probably not support Media Capture API.When pressing the button the browser will ask you the permission to access the Webcam and you must accept
to continue. The security request format is vendor specific.When confirmed you will see the new portrait overlay, where the webcam is activated and the output stream
is directly on your browser.You have two possible actions: close the window or take a photo. In the latter case a delay counter will be
displayed on the left (you can raise or lower the delay using the range control, from 0 to 10 seconds).Note: only the image part inside the highlight yellow section (the viewfinder) will be used as a new portrait.
You can move the viewfinder by drag and drop with the mouse (not working on mobile right now).After every shot taken, you can look at a preview of the image, and repeat the operation until you get a nice
portrait.Finally, you can save the new portrait in the user’s preferences. The image in the form will be immediately
updated from the server.Face detectionThe product contains aface detectionsupport, that can automatically center the viewfinder on any
recognized face.Default implementation rely onto theOpenCV, Computer Vision Library(that must be installed
on your Python env) and must be explicitly activated:[instance]
...
zcml=
    ...
    collective.takeaportrait.opencvNoteThis feature in deeply experimental, a proof-of-concept not ready from production environment.SeePlone, HTML 5 Canvas and Face Detection with Webcamarticle for more.If you manually move the viewfinder, the auto-center feature based on face detection will be stopped.Plone integrationAs customizing the user preference form is something I don’t like very much, this product is adding new features
only using pure JavaScript.Tested on Plone 4.3.Browsers supportThe user’s browser must supportHTML Media Capture APIso only recent and cool browser can be used:Firefox: tested with Firefox 25Chrome: tested with Chrome 30 (a little slow, but works)Opera: tested with Opera Next, version 18Safari: no support (c’mon Apple…)Internet Explorer: support is expected for Internet Explorer 31[1]To know if your browser is supported, see theCan I UseWeb site.MobileSafari on iOS: no supportAndroid Browser (Android 4.2.2): no supportChrome on Android: tested with Chrome 32Firefox: on version 27 camera seems to work but something goes wrong[1]Microsoft said that probably the Media Capture support will be delayed to Internet Explorer 36 in case
Patent War VI against Kilrathi race on Tau Ceti will not over on time.Changelog0.2.0 (2014-02-20)Viewfinder can now be dragged for optimal face position
[keul]Face detection support (super-experimental)
[keul]0.1.0 (2013-11-10)Initial release