This is a demo which shows how to use opencv in android.
This video shows how to use opencv in android (using jni).
https://www.bilibili.com/video/BV1n441157Hj
https://www.bilibili.com/video/BV14441157Uk?t=1712
https://www.bilibili.com/video/BV12J411W7Vp?t=205
访问服务器数据库用到的服务器数据库PHP文件为
https://github.com/zhaoxiaodong789/php_tecentCloud_android_barcode/tree/master