#Bitmap Smart Clipping using OpenCV

based on http://code.taobao.org/p/tclip/

recommend iOS version: https://github.com/croath/UIImageView-BetterFace

#Demo Screenshots

#Features

• using OpenCV to detect faces firstly, if have faces, won't cut faces off
• using OpenCV to detect other characters secondly, if found significant zone, won't cut it off
• using FAST feature detector instead of SURF, thanks for @yanunon

#Usage

• copy config file to app dir

  String configPath = TClip.copyConfig(context, TClip.CONFIG, R.raw.haarcascade_frontalface_alt);
  

• get cropped bitmap

  //config: /data/data/com.demo.tclip.debug/haarcascade_frontalface_alt.xml
  Bitmap ret = TClip.crop(configPath, sourceBitmap, width, height);
  

#Build

• download OpenCV & unzip to /home/user/opencv-android-sdk
• export OPENCV_PACKAGE_DIR="/home/user/opencv-android-sdk"
• libnonfree.so & libopencv_java.so from beartung/nonfree-opencv-android
• using FAST feature detector without libnonfree
• cd jni && ndk-build