Table Of Contents
Latest update [menu]
Version 1.1 updated.
Description [menu]
One of the fundamental requirements for successful face recognition is to reduce the environmental noise from the pictures.
Scaling and aligning pictures before it is send for training and recognition using any of the Open CV’s recognition classes will
improve the overall accuracy .
I found a very nice example online that is written in C++ for aligning the faces
http://answers.opencv.org/question/24670/how-can-i-align-face-images/
The basic theory is that using flandmark the position of the eyes is calculated . Next the angle of rotation has to be calculated from the desired final alignment .
This is done by using linear regression , then the image is rotated and saved.
I wanted to try this in android and found that Java CV has made the Java bindings for Flandmark (for Java CV and Open CV own’s Java bindings check here http://blog.f11labz.com/using-open-cv-with-java/ ). It was just the matter of
converting the c++ code to java and trying it out in android. The result is pretty decent , some tweaking of size and parameters could be required.
You can download the code here.
https://dl.dropboxusercontent.com/u/54598139/FlandmarkDemo.zip
To build the code you will have to download open CV for android from here.
http://sourceforge.net/projects/opencvlibrary/files/opencv-android/2.4.11/OpenCV-2.4.11-android-sdk.zip/download
How to install FLANDMARK Demo APK for Android [menu]
Download FLANDMARK Demo APK file (com.f11.flandmark_11_28696541.apk) from APKPure.live, then follow these steps:
Update Phone Settings
- Go to your phone Settings page
- Tap Security or Applications (varies with device)
- Check the Unknown Sources box
- Confirm with OK
Go to Downloads
- Open Downloads on your device by going to My Files or Files
- Tap the APK file you downloaded (com.f11.flandmark_11_28696541.apk)
- Tap Install when prompted, the APK file you downloaded will be installed on your device.
How to install FLANDMARK Demo APK on Windows 7/8/10 or MAC PC? [menu]
Download FLANDMARK Demo APK file(com.f11.flandmark_11_28696541.apk) from APKPure.live to your PC (ex: /Users/xxx/Downloads/(com.f11.flandmark_11_28696541.apk)), then follow these steps:
Using Emulator:
- Download And Install one Emulator Softwares (Ex: Bluestacks, GenyMotion, NoxPlayer)
- Simple install APK on PC by drag and drop file com.f11.flandmark_11_28696541.apk on Emulator screen
FLANDMARK Demo APK Pros & Cons [menu]
Pros
- This app is safe, it's not require high risk permissions
- Compatible with 32 bit device (most Emulator using 32bit arch CPU)
- Compatible with 64-bit device (some android device and current Bluestacks)
Cons
Everything is good.