我只是想知道如果在一个表单中使用大写字母全部放在他们自己的小盒子中,那么tesseract对于手写识别有多准确.
我知道你可以训练它来识别你自己的笔迹,但我的问题是我需要在多个笔迹中使用它.谁能指出我正确的方向？
非常感谢.
我一直在尝试简单地将一个包含两个变量（一个字符串和一个位置）的类推送到 firebase 并读取它，但我收到了此错误。
**com.google.firebase.database.DatabaseException: Class android.location.Location does not define a no-argument constructor. If you are using ProGuard, make sure these constructors are not stripped.
at com.google.android.gms.internal.zzeas.zze(Unknown Source:51)
at com.google.android.gms.internal.zzear.zzb(Unknown Source:772)
at com.google.android.gms.internal.zzear.zza(Unknown Source:312)
at com.google.android.gms.internal.zzear.zzb(Unknown Source:0)
at com.google.android.gms.internal.zzeas.zze(Unknown Source:209)
at com.google.android.gms.internal.zzear.zzb(Unknown Source:772)
at com.google.android.gms.internal.zzear.zza(Unknown Source:0)
at com.google.firebase.database.DataSnapshot.getValue(Unknown Source:10)
at com.example.vish.mcapp.Selection$2$1.onDataChange(Selection.java:85)
at com.google.firebase.database.zzp.onDataChange(Unknown Source:7)
at com.google.android.gms.internal.zzduz.zza(Unknown Source:13)
at com.google.android.gms.internal.zzdwu.zzbvb(Unknown Source:2)
at com.google.android.gms.internal.zzdxa.run(Unknown Source:65)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)**
我试图从 firebase 推送和读取其对象的类如下。 …