你的可以正常识别吗, 好多报错哦

[conscious01]

FATAL EXCEPTION: main
Process: com.lichao.bankcardrec, PID: 9549
java.lang.NullPointerException: Attempt to get length of null array
at com.lichao.util.TextImageProcessor.recognitionChar(TextImageProcessor.java:247)
at com.lichao.bankcardrec.CardOCRActivity.onClick(CardOCRActivity.java:85)
at android.view.View.performClick(View.java:6613)
at android.view.View.performClickInternal(View.java:6586)
at android.view.View.access$3100(View.java:780)
at android.view.View$PerformClick.run(View.java:26100)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6702)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:911)