Interactive Halloween Mirror





Introduction: Interactive Halloween Mirror

Halloween Contest

Third Prize in the
Halloween Contest

We have made an interactive Halloween mirror.

It is a computerprogram with a face recognition module. It use a webcam to take a live video and put funny Halloween masks on the faces on the screen.

Step 1:

You need just a few things for the Halloween mirror:

  • Computer with a monitor or a Laptop
  • Webcam
  • Computerprogram (can download here)
  • Decoration for the monitor (like dark cloth, spiderwebs,...)

Step 2: The Program

The program is written in processing. This is a language developed for electronic arts and visual design. It is based on the java programming language and generates java bytecode.

Step 3: The Frame

The decoration frame was painted with corelDraw.

The field in the middle is for the video.

Step 4: The Masks

The Halloween masks also made with corelDraw.

We made nine different masks, they will change all 5 seconds.

Step 5: Installation

We uses the Intel openCV library for the face recognition. You must install it first.

You will find it here:

Important, you must load the version 1.0. After installation you need to restart the your system.

If have no java virtual machine installed on your computer, you should do it:

And check that you have this two DLLs in your SYSTEM32 folder. Most computers will have them. If not, you will find them on Microsofts website, or ask a friend.

After this you can download the installationprogram of the Halloween mirror, unzip and install it.

If the video is not so smoothly on your computer, then you can try to reduce the resolution.

Step 6:

Now you can set the monitor on a good place, like the buffet or near the house door. So every coming guest can see it.

You can make some decoration at the monitor, like black cloth or spiderweb, bats, ...

If you like our program and use it next halloween, please take some pictures of it and send them to us.

We wish you many fun with our Halloween mirror

The Lichtbaendiger from germany
Ruth and Thomas

An update after 6 years ;-)

I have made the program as an experimental Android App. It runs on several devices. I also tried it on an old Samsung Netbook with Android x86. It works.



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    Now I have an Android App of the Halloween Mirror.

    It worked great!! Thanks!!
    Souce code wou be cool thou

    Is it possible to change out the frame and the mask files? I'd like to use this for our church's fall festival and change some of the bloody masks to some that are more friendly for small children.

    I know that the last comment is over a year old but I'm hoping the author still checks occasionally. I just stumbled upon this instructable today and am trying to get it to work on my Windows 7 SP1 computer but all I get is a gray screen. I see that others have had this problem but I haven't seen anyone post a definitive answer to this problem.

    I have followed the instructions step-by-step, first installing OpenCV_1.0, then rebooting, then copying the DLLs and running Halloweenspiegel.exe. I even copied the DLLs to the SysWOW folder along with the system32 folder, just to make sure.

    When I run the program, the activity light on my webcam turns on but all I get is a gray screen. If I run the program without the webcam I get a message complaining that no webcam was found.

    Halloween is only a few weeks away and, along with all the other preparations, I would like to get this working in time to set it up for the kids. Does anyone know what might be wrong? As I said, I've followed the step-by-step instructions. Any help would be much appreciated. Happy Halloween!

    I've checked it with Win7. The gray screen comes if the OpenCV is newer than 1.0 and if these DLLs MSVCP71.DLL MSVCR71.DLL couldn't be found.
    If these DLLs are there it works.
    Please check it.

    I have also installed this program and have the gray screen issue. I installed OpenCV, and I have placed the DLL files in system32, however this hasn't resolved the issue. I think there should be detailed instructions on how to setup the folders and properly name them because it didn't say I had to create a "lib" folder until I got an error saying it was required. Would love to get this working in time for the halloween party next week! :)


    you can also do it step by step:
    - first install openCV V1.0 (not an other version)
    - reboot
    - unzip the
    - copy the folder "halloweenspiegel" (with lib) to your programmfolder
    - copy the DLL to your system32 folder: DSVL.dll myron_ezcam.dll
    - check that you have the following DLL in system32: MSVCP71.DLL MSVCR71.DLL

    hope that works
    Greetings from Germany

    Thanks, it works now! On my computer, I had to put V1.0 instead of V2.3.1

    Is it possible to use different mask / frame? I would like to design a high resolution version in photoshop that will go well with the decorations! I can share them on here

    Thanks again, this is lots of fun! :)

    I still am having the same issues I would get a grey screen and the pc reboots

    Here is what i did for the instal am i doing something wrong??

    1) installed Java ( have tried multiple versions from 1.4,1.5,1.6 latest)
    2) installed open CV V1.0
    3) installed Halloweenspiegel to C:\Program files
    4) copied halloween dll's (DSVL.dll myron_ezcam.dll) files to win\system32
    5) verified MSVCP71.DLL MSVCR71.DLL are in system 32
    6) rebooted

    After doing these steps once I launch Halloweenspiegel I get a grey screen and the system reboots.

    if I disconnect the usb camera I get an error message stating no camera detected

    my only thought is I missed something or the camera I am using is not compatible (which is a Logitech Quickcam pro 4000 Model# V-UT16)

    BTW I am running this on a XP sp3 machine as well

    I anyone can shed some light on this it would be greatly appreciated. Thanks

    Ugh, this looks way kewl, but it is not working - indicates a file is missing. Can you advise? Not sure if this is for this year.