kepeng1019 / smartpaperscan Goto Github PK

/AndroidRuntime: FATAL EXCEPTION: pool-1-thread-1
Process: com.pengke.paper.scanner, PID: 30656
io.reactivex.exceptions.OnErrorNotImplementedException: Camera is being used after Camera.release() was called
at io.reactivex.internal.functions.Functions$OnErrorMissingConsumer.accept(Functions.java:704)
at io.reactivex.internal.functions.Functions$OnErrorMissingConsumer.accept(Functions.java:701)
at io.reactivex.internal.observers.LambdaObserver.onError(LambdaObserver.java:77)
at io.reactivex.internal.observers.LambdaObserver.onNext(LambdaObserver.java:67)
at io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.drainNormal(ObservableObserveOn.java:200)
at io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.run(ObservableObserveOn.java:252)
at io.reactivex.internal.schedulers.ExecutorScheduler$ExecutorWorker$BooleanRunnable.run(ExecutorScheduler.java:261)
at io.reactivex.internal.schedulers.ExecutorScheduler$ExecutorWorker.run(ExecutorScheduler.java:226)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:764)
Caused by: java.lang.RuntimeException: Camera is being used after Camera.release() was called
at android.hardware.Camera.native_getParameters(Native Method)
at android.hardware.Camera.getParameters(Camera.java:2458)
at com.pengke.paper.scanner.scan.ScanPresenter$onPreviewFrame$1.accept(ScanPresenter.kt:185)
at com.pengke.paper.scanner.scan.ScanPresenter$onPreviewFrame$1.accept(ScanPresenter.kt:36)
at io.reactivex.internal.observers.LambdaObserver.onNext(LambdaObserver.java:63)
at io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.drainNormal(ObservableObserveOn.java:200) 
at io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.run(ObservableObserveOn.java:252) 
at io.reactivex.internal.schedulers.ExecutorScheduler$ExecutorWorker$BooleanRunnable.run(ExecutorScheduler.java:261) 
at io.reactivex.internal.schedulers.ExecutorScheduler$ExecutorWorker.run(ExecutorScheduler.java:226) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) 
at java.lang.Thread.run(Thread.java:764) 

after each take picture default rect gets smaller

With the preview I have a perfect rectangle, after the shot i have a triangle.

thanks

I tried to implement your solution to my use case, I need tu scan a receipt, but if I focus my camera only in on part of the receipt it won't detect the rectangle, here are the two cases

Any idea of how to solve this?

Thanks!

E/SurfaceView: Exception configuring surface
java.lang.RuntimeException: setParameters failed
at android.hardware.Camera.native_setParameters(Native Method)
at android.hardware.Camera.setParameters(Camera.java:2102)
at com.pengke.paper.scanner.scan.ScanPresenter.initCamera(ScanPresenter.kt:124)
at com.pengke.paper.scanner.scan.ScanPresenter.surfaceCreated(ScanPresenter.kt:129)
at android.view.SurfaceView.updateSurface(SurfaceView.java:670)
at android.view.SurfaceView$2.onPreDraw(SurfaceView.java:143)
at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:977)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2474)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1460)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7183)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:949)
at android.view.Choreographer.doCallbacks(Choreographer.java:761)
at android.view.Choreographer.doFrame(Choreographer.java:696)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:935)
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:6669)
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:858)

When I use this code and create library for xamarin it's not working cause i got an error in create the IScanView Interface.

Severity Code Description Project File Line Suppression State
Error CS7036 38 Active

There is no argument given that corresponds to the required formal parameter 'context' of 'ScanPresenter.ScanPresenter(Context, IScanViewProxy)' mPOS.Android C:\Users\tharinduD\Desktop\freedomv5\mPOS\mPOS.Android\MainActivity.cs

可以弄一个检测任何物品的吗 不一定非要是文档

Class 'ScanPresenter' is not abstract and does not implement abstract member public abstract fun surfaceChanged(@nonnull p0: SurfaceHolder, p1: Int, p2: Int, p3: Int): Unit defined in android.view.SurfaceHolder.Callback

I need to only detect rectangles.
Another thing the would be useful is reduce the detection speed, sometimes I do detect but with a tiny move the detection update to another one.

Can you please help me if possible ?

Hey,
I download your project and open in the android studio but it shows error when I build the project like this

Failed to resolve: support-compat

Hello, can you add so e features like auto scan and auto crop ?

I use your code for detecting a page and show the rectangle on paper and its work perfectly while background is black but if the background is white and paper also white then not able to draw the rectangle on paper

Hello , I want to use it but I don't know how to add this library to my project

hello, i was using compile sdk version 28 and target sdk version 28, the app go well but google console needs version 29, when i change to 29 the app crash

Hi
How can I add SmartPaperScan to xamarin forms?
Thanks

Hi
There is poor camera preview quality and image as well on some devices...in many devices it's working fine. Can you please help why it's happening...i think this is related to camera or device ratio.

Any help will be much appreciated.

Thanks

When I try to run this project it shows following error. I can not run it

Error:Execution failed for task ':app:ndkBuild'.
A problem occurred starting process 'command '/media/vignes/Softwares/Ubuntu/Android/SDK/ndk-bundle/ndk-build.cmd''

Camera is unstable, the preview works bizzare in diffrent phones

你好请问如果由于角度问题导致高光，这种情况怎么处理呢？

https://imgur.com/f190UFk

https://imgur.com/JkEhWkS

我现在检测的结果是这样的

这个图在 threshold 时候 高光部分也被算进去了

I tried runing the app on various different phones but not able view the images in the gallery of any of the phones

Hello, after shot the photo, I got the next activity going to a blank image.

How can I edit labels like Auto, Manual, Edit Scan, Done ... etc.
Is there a way to start camera immediately (without screen shrink and slide up)?