minivision-ai/silent-face-anti-spoofing-apk

silent-face-anti-spoofing-apk's Issues

Model is not giving correct prediction scores on android

Hi,
I created Face Antispoof .pth model which is similar to the layers of model_1.param. The .pth model gives good results on my PC. I am getting prediction scores between 0-100. However, the model is giving optimised prediction scores such as 0 and 1 while running on android ( I used Silent-Face-Anti-Spoofing-APK project's code).

I did the following preprocessing for training the model:

transform = transforms.Compose([
transforms.RandomResizedCrop(size=tuple([80, 80]),
scale=(0.9, 1.1)),
transforms.ColorJitter(brightness=0.4,
contrast=0.4, saturation=0.4, hue=0.1),
transforms.RandomRotation(10),
transforms.RandomHorizontalFlip(),
transforms.ToTensor()
])

I need to implement the same preprocessing in 'Silent-Face-Anti-Spoofing-APK' project's code to get the correct prediction scores on android. Can anyone help?

If the preprocessing is not the problem, what else could it be? I tried to fix the conversion ( pth-> onnx -> param,bin). The onnx file is giving good results as well. So I'm guessing it could be because of the preprocessing. Please help. Thanks. :)

Face Detection and Live Detection is not working

I'm trying to integrate this with my face recognition application.

The Face detection and Live detection is not working. I'm using CameraX api.

It's throwing exception "Invalid yuv data"

Can we detect face movement, smile and eyes blink?

I want to implement an active liveness feature in my project, which requires detecting face movement (left/right), facial smiles, and blinking eyes. Is this possible?

Not getting imported in latest android studio

binding issues

Supporting iOS/Flutter

Base on your model, we have already a flutter plugin for support both iOS & android to anti spoofing. Our company saved a lot of money. Thanks minivisioun-ai for yours support.
Hope this help some one https://github.com/TnexTechnology/TnexEkyc

解决

How to get image path

Hi @zhuyingSeu,
thank your project.
I have a question: can i convert detect image in bitmap

libopencv_core.so file conflict

I have used this code in my project's custom library module and created a dependency of that custom library module. However, when I try to integrate that dependency into another project, I encounter an error related to OpenCV library conflicts with another library also using OpenCV. Could you please suggest what needs to be done in this case?

That error is:
2 files found with path 'lib/arm64-v8a/libopencv_core.so' from inputs:

• /home/user/.gradle/caches/transforms-3/911537fefc5db547302654862cec0334/transformed/jetified-verify-android-sdk-public-1.4/jni/arm64-v8a/libopencv_core.so
• /home/user/.gradle/caches/transforms-3/79670e0576ad57949a47a09a0d84c940/transformed/jetified-android-sdk-5.5.1/jni/arm64-v8a/libopencv_core.so
  If you are using jniLibs and CMake IMPORTED targets, see

libncnn.a是怎么编译来的呢？

我想使用Vulkan来测试一下加速效果，但是我按照ncnn-vulkan的编译教程https://github.com/Tencent/ncnn/wiki/how-to-build#build-for-android编译好了之后，替换原来的libncnn.a，会报错：

当不使用vulkan编译之后的库替换libncnn.a时，会报如下错：

不能识别undefined reference to `ncnn::Extractor::extract(char const*, ncnn::Mat&)'这个取数据的过程，
因此我想请问您的libncnn.a是怎么编译得到的呢？

2D image detection

Its also tells the real face of 2d static image

Can you share the versions of OpenCV and NCNN used in your package?

Thanks.

Orientation for camera Back

In project, orientation config when detect liveness default isquals 7.
Do I need to change it in another case? Ex: camera front/back

Issue with param file architecture

Hi.
I was manually converting the anti spoof pth models given here into bin and param files (i.e. ncnn format) after referring to #3 issue, and following these steps.
However, the architecture of my onnx/param files is different from the actual param files given here

This is the param file given in the repo:
model_2.param

And this is my param file architecture:
ncnn_07Apr.zip

And I checked the architectures on https://netron.app/
And they're clearly different.

And the original APK script is running fine with the original models, but crashes with the new ones.
No traceback or warning or error is displayed upon crashing. There is nothing in the logs.
Would you have any idea why that might be?
Any insight is appreciated.

编译报错？

Execution failed for task ':app:kaptDebugKotlin'.

A failure occurred while executing org.jetbrains.kotlin.gradle.internal.KaptExecution
java.lang.reflect.InvocationTargetException (no error message)

• Try:
  Run with --stacktrace option to get the stack trace. Run with --scan to get full insights.

• Exception is:
  org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:kaptDebugKotlin'.
  at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$3.accept(ExecuteActionsTaskExecuter.java:166)
  at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$3.accept(ExecuteActionsTaskExecuter.java:163)
  at org.gradle.internal.Try$Failure.ifSuccessfulOrElse(Try.java:191)
  at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:156)
  at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:62)
  at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:108)
  at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionOutputsTaskExecuter.execute(ResolveBeforeExecutionOutputsTaskExecuter.java:67)
  at org.gradle.api.internal.tasks.execution.ResolveAfterPreviousExecutionStateTaskExecuter.execute(ResolveAfterPreviousExecutionStateTaskExecuter.java:46)
  at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:94)
  at org.gradle.api.internal.tasks.execution.FinalizePropertiesTaskExecuter.execute(FinalizePropertiesTaskExecuter.java:46)
  at org.gradle.api.internal.tasks.execution.ResolveTaskExecutionModeExecuter.execute(ResolveTaskExecutionModeExecuter.java:95)
  at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:57)
  at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:56)
  at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:36)
  at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.executeTask(EventFiringTaskExecuter.java:77)
  at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:55)
  at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:52)
  at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:416)
  at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:406)
  at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
  at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
  at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
  at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:102)
  at org.gradle.internal.operations.DelegatingBuildOperationExecutor.call(DelegatingBuildOperationExecutor.java:36)
  at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:52)
  at org.gradle.execution.plan.LocalTaskNodeExecutor.execute(LocalTaskNodeExecutor.java:43)
  at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:355)
  at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:343)
  at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:336)
  at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:322)
  at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker$1.execute(DefaultPlanExecutor.java:134)
  at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker$1.execute(DefaultPlanExecutor.java:129)
  at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.execute(DefaultPlanExecutor.java:202)
  at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.executeNextNode(DefaultPlanExecutor.java:193)
  at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.run(DefaultPlanExecutor.java:129)
  at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
  at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:48)
  at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:56)
  Caused by: org.gradle.workers.internal.DefaultWorkerExecutor$WorkExecutionException: A failure occurred while executing org.jetbrains.kotlin.gradle.internal.KaptExecution
  at org.gradle.workers.internal.DefaultWorkerExecutor$WorkItemExecution.waitForCompletion(DefaultWorkerExecutor.java:375)
  at org.gradle.internal.work.DefaultAsyncWorkTracker.waitForItemsAndGatherFailures(DefaultAsyncWorkTracker.java:142)
  at org.gradle.internal.work.DefaultAsyncWorkTracker.access$000(DefaultAsyncWorkTracker.java:34)
  at org.gradle.internal.work.DefaultAsyncWorkTracker$1.run(DefaultAsyncWorkTracker.java:106)
  at org.gradle.internal.Factories$1.create(Factories.java:26)
  at org.gradle.internal.work.DefaultWorkerLeaseService.withoutLocks(DefaultWorkerLeaseService.java:260)
  at org.gradle.internal.work.DefaultWorkerLeaseService.withoutProjectLock(DefaultWorkerLeaseService.java:171)
  at org.gradle.internal.work.DefaultWorkerLeaseService.withoutProjectLock(DefaultWorkerLeaseService.java:165)
  at org.gradle.internal.work.StopShieldingWorkerLeaseService.withoutProjectLock(StopShieldingWorkerLeaseService.java:95)
  at org.gradle.internal.work.DefaultAsyncWorkTracker.waitForItemsAndGatherFailures(DefaultAsyncWorkTracker.java:102)
  at org.gradle.internal.work.DefaultAsyncWorkTracker.waitForAll(DefaultAsyncWorkTracker.java:80)
  at org.gradle.internal.work.DefaultAsyncWorkTracker.waitForCompletion(DefaultAsyncWorkTracker.java:68)
  at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$5.run(ExecuteActionsTaskExecuter.java:484)
  at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:402)
  at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:394)
  at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
  at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
  at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
  at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:92)
  at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
  at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:461)
  at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:444)
  at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.access$200(ExecuteActionsTaskExecuter.java:93)
  at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution.execute(ExecuteActionsTaskExecuter.java:237)
  at org.gradle.internal.execution.steps.ExecuteStep.lambda$execute$0(ExecuteStep.java:32)
  at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:32)
  at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:26)
  at org.gradle.internal.execution.steps.CleanupOutputsStep.execute(CleanupOutputsStep.java:58)
  at org.gradle.internal.execution.steps.CleanupOutputsStep.execute(CleanupOutputsStep.java:35)
  at org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:48)
  at org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:33)
  at org.gradle.internal.execution.steps.CancelExecutionStep.execute(CancelExecutionStep.java:39)
  at org.gradle.internal.execution.steps.TimeoutStep.executeWithoutTimeout(TimeoutStep.java:73)
  at org.gradle.internal.execution.steps.TimeoutStep.execute(TimeoutStep.java:54)
  at org.gradle.internal.execution.steps.CatchExceptionStep.execute(CatchExceptionStep.java:35)
  at org.gradle.internal.execution.steps.CreateOutputsStep.execute(CreateOutputsStep.java:51)
  at org.gradle.internal.execution.steps.SnapshotOutputsStep.execute(SnapshotOutputsStep.java:45)
  at org.gradle.internal.execution.steps.SnapshotOutputsStep.execute(SnapshotOutputsStep.java:31)
  at org.gradle.internal.execution.steps.CacheStep.executeWithoutCache(CacheStep.java:208)
  at org.gradle.internal.execution.steps.CacheStep.execute(CacheStep.java:70)
  at org.gradle.internal.execution.steps.CacheStep.execute(CacheStep.java:45)
  at org.gradle.internal.execution.steps.BroadcastChangingOutputsStep.execute(BroadcastChangingOutputsStep.java:49)
  at org.gradle.internal.execution.steps.StoreSnapshotsStep.execute(StoreSnapshotsStep.java:43)
  at org.gradle.internal.execution.steps.StoreSnapshotsStep.execute(StoreSnapshotsStep.java:32)
  at org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:38)
  at org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:24)
  at org.gradle.internal.execution.steps.SkipUpToDateStep.executeBecause(SkipUpToDateStep.java:96)
  at org.gradle.internal.execution.steps.SkipUpToDateStep.lambda$execute$0(SkipUpToDateStep.java:89)
  at org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:54)
  at org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:38)
  at org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:76)
  at org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:37)
  at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:36)
  at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:26)
  at org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:90)
  at org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:48)
  at org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.execute(CaptureStateBeforeExecutionStep.java:69)
  at org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.execute(CaptureStateBeforeExecutionStep.java:47)
  at org.gradle.internal.execution.impl.DefaultWorkExecutor.execute(DefaultWorkExecutor.java:33)
  at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:140)
  ... 34 more
  Caused by: java.lang.reflect.InvocationTargetException
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at org.jetbrains.kotlin.gradle.internal.KaptExecution.run(KaptWithoutKotlincTask.kt:158)
  at org.gradle.workers.internal.AdapterWorkAction.execute(AdapterWorkAction.java:50)
  at org.gradle.workers.internal.DefaultWorkerServer.execute(DefaultWorkerServer.java:47)
  at org.gradle.workers.internal.NoIsolationWorkerFactory$1$1$1.create(NoIsolationWorkerFactory.java:65)
  at org.gradle.workers.internal.NoIsolationWorkerFactory$1$1$1.create(NoIsolationWorkerFactory.java:61)
  at org.gradle.internal.classloader.ClassLoaderUtils.executeInClassloader(ClassLoaderUtils.java:98)
  at org.gradle.workers.internal.NoIsolationWorkerFactory$1$1.execute(NoIsolationWorkerFactory.java:61)
  at org.gradle.workers.internal.AbstractWorker$1.call(AbstractWorker.java:44)
  at org.gradle.workers.internal.AbstractWorker$1.call(AbstractWorker.java:41)
  at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:416)
  at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:406)
  at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
  at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
  at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
  at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:102)
  at org.gradle.internal.operations.DelegatingBuildOperationExecutor.call(DelegatingBuildOperationExecutor.java:36)
  at org.gradle.workers.internal.AbstractWorker.executeWrappedInBuildOperation(AbstractWorker.java:41)
  at org.gradle.workers.internal.NoIsolationWorkerFactory$1.execute(NoIsolationWorkerFactory.java:56)
  at org.gradle.workers.internal.DefaultWorkerExecutor$3.call(DefaultWorkerExecutor.java:215)
  at org.gradle.workers.internal.DefaultWorkerExecutor$3.call(DefaultWorkerExecutor.java:210)
  at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.runExecution(DefaultConditionalExecutionQueue.java:215)
  at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.runBatch(DefaultConditionalExecutionQueue.java:164)
  at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.run(DefaultConditionalExecutionQueue.java:131)
  ... 3 more
  Caused by: java.util.ServiceConfigurationError: javax.annotation.processing.Processor: android.databinding.annotationprocessor.ProcessDataBinding Unable to get public no-arg constructor
  at kotlin.collections.CollectionsKt___CollectionsKt.toCollection(_Collections.kt:1200)
  at kotlin.collections.CollectionsKt___CollectionsKt.toMutableList(_Collections.kt:1233)
  at kotlin.collections.CollectionsKt___CollectionsKt.toList(_Collections.kt:1224)
  at org.jetbrains.kotlin.kapt3.base.ProcessorLoader.doLoadProcessors(ProcessorLoader.kt:80)
  at org.jetbrains.kotlin.kapt3.base.ProcessorLoader.loadProcessors(ProcessorLoader.kt:45)
  at org.jetbrains.kotlin.kapt3.base.Kapt.kapt(Kapt.kt:42)
  ... 29 more
  Caused by: java.lang.NoClassDefFoundError: javax/xml/bind/JAXBException
  ... 35 more
  Caused by: java.lang.ClassNotFoundException: javax.xml.bind.JAXBException
  ... 35 more

2 files found with path 'lib/arm64-v8a/libopencv_core.so'.

你好，编译的时候一直报这个错

2 files found with path 'lib/arm64-v8a/libopencv_core.so'.

请问有办法解决吗？～谢谢～

Native ios code

Great work. How can i detect face spoofing in ios?Please help

face detection with landmark?

Hi @zhuyingSeu,
thank your project.
I have a question: Does face detection in this project support detecting landmarks?

Demo在手机上运行良好，然后我放到我学校发的学习平板上就很奇怪

1. 学校发的平板是个杂牌, 只能横着拿，屏幕宽和高手机如果是 640 x 480的话，它是反着的 480x640

2. 摄像头的预览是一个非镜像的，也就是他们都被认为是后置摄像头，不是前置。明明安装在前面啊。滑稽。。。

我的问题是：

1. demo能运行起来，可是预览变镜像怎么弄？ 我要硬让它变成前置，有一种照镜子的感觉。
2. 那个人脸识别框老是没有对准，感觉影响了识别效果，怀疑取到的预览数据就不是完整的人脸导致。所以这个是有什么方法来调整，让预览数据和最终进行人脸识别的数据能对上，活体检测才准确？

不胜感激！

请问libopencv*.so是怎么编译得到的？

您好，我最近在尝试从openCV的源代码编译得到libopencv_*.so，编译似乎是成功了，但是替换掉当前repo里面的文件，就会报错。

能介绍一下当前repo里面的*.so文件是如何编译得到的吗？多谢🙏

Consider publishing demo apk

Hi,

Thanks for sharing this awesome repo.

However, the whole repo is big (about 50M) to be git cloned, and building its APK also cost some time.

If convenient, I suggest release apk in the github release page.

Thanks.

活体模型inference归一化问题

你好，看训练代码中是进行了数据归一化 x / 255 。https://github.com/minivision-ai/Silent-Face-Anti-Spoofing/blob/master/src/data_io/dataset_loader.py#L22。
但是在模型测试的时候，是没有加归一化。(https://github.com/minivision-ai/Silent-Face-Anti-Spoofing-APK/blob/master/engine/src/main/cpp/live/live.cpp#L60~L63)
是否是在pytorch模型转ncnn的时候，进行了特殊的/255的处理？

手机摄像头对着iMac 5K 屏幕显示的照片，防伪失效

对着iMac 5K 高清屏幕显示为真人

Unresolved reference: BR

I meet an error when open project on Android Studio "Unresolved reference: BR". Can you help me how to fix this?

手机上和板子上的效果差异很大

下载了代码测试，在手机上跑起来后，效果还不错。
同一份APK安装到RK3288板子上，USB摄像头，能跑起来，但是活体置信度就非常的不准确了。

影响这个效果的原因是什么？像素？分辨率？画面？比例？还是其他？

人脸检测和活体检测，可以有个说明文档不？

活体检测是在人脸检测后，截取的人脸区域进行是否是活体，还是怎么检测的？

gradle error

怎么识别多张人脸

如何同时识别多张人脸状态呢

Detection on landscape orientation is not working properly

so i tested it on Redmi Pad SE, and i need to change the display orientation from potrait to landscape. On Potrait mode, the detection is working properly. But, suddenly when i change it to landscape, the detection is not working properly, so it will give the results fake face while the face is already on the frame. how to fix this?

这里面的model和代码可商用么？

您好 libncnn.a 是不是重新编译过得呢

多次人脸检测后 libncnn.a 报的异常，请问一下是不是编译的官方的还是有修改过呢
_ZNK4ncnn15Convolution_arm7forwardERKNS_3MatERS1_RKNS_6OptionE
/home/yuanhao/osc/ncnn-20200413/src/layer/arm/convolution_arm.cpp:697
_ZNK4ncnn3Net13forward_layerEiRNSt6__ndk16vectorINS_3MatENS1_9allocatorIS3_EEEERNS_6OptionE
/home/yuanhao/osc/ncnn-20200413/src/net.cpp:1189
_ZNK4ncnn3Net13forward_layerEiRNSt6__ndk16vectorINS_3MatENS1_9allocatorIS3_EEEERNS_6OptionE
/home/yuanhao/osc/ncnn-20200413/src/net.cpp:1119

安卓端模型的bin文件和param文件是怎么从pytorch模型转化过来的

ncnn还是opencv

请问工程中很多的opencv函数可以使用ncnn中的函数替换，例如ncnn中的yuv420sp2rgb可以将nv21转化为像素格式；为啥本工程使用了opencv的函数，是因为使用前者会使得模型效果变差吗？

java版本

请问一下，能否提供java版本呢？