Opencv JNA&C++ FaceRecognizer 导致 JVM 崩溃

Question

我一直在编写Java版本的FaceRecognizer库。我可以在我的Java OpenCV项目中成功初始化一个新的FaceRecognizer（默认使用Fisherface）。我使用 JNA 来完成此操作。但是最近，我发现"train"方法有错误，所以我决定在DLL文件中进行整个识别，并最终返回双精度值。但是当我像这样制作一个新的人脸识别器时：

Ptr<FaceRecognizer> model = Algorithm::create<FaceRecognizer>("FaceRecognizer.Fisherfaces");

或

Ptr<FaceRecognizer> model = createFisherFaceRecognizer();

它确实编译和构建成功！但是当我使用它们像这样训练时：

model->train(libList,idList);

（libList 是向量，idList 是向量）

JVM（通过JNA到我的Java OpenCV项目）。

它说：

A fatal error has been detected by the Java Runtime Environment:
EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x60b2510b, pid=31264, tid=13256
Problematic frame:
C  [opencv_core248.dll+0x510b]

我

猜这与引用或指针有关，因为即使我运行

model->name();

它也会崩溃。似乎是"模型"的问题。我非常感谢您的帮助！谢谢！

这是日志文件：

---------------  T H R E A D  ---------------
Current thread (0x0008bc00):  JavaThread "main" [_thread_in_native, id=13256,     stack(0x01070000,0x010c0000)]
siginfo: ExceptionCode=0xc0000005, reading address 0x00000000
Registers:
EAX=0x010bf098, EBX=0x00000000, ECX=0x00000000, EDX=0x08da0174
ESP=0x010bf08c, EBP=0x010bf0a4, ESI=0x010bf0b0, EDI=0x010bf3e4
EIP=0x60b2510b, EFLAGS=0x00010286
Top of Stack: (sp=0x010bf08c)
0x010bf08c:   bdaf0099 010bf0b0 00000000 010bf3e4
0x010bf09c:   60c941e9 ffffffff 010bf3f0 61e42598
0x010bf0ac:   010bf198 bdac87d8 010bf490 00000000
0x010bf0bc:   00000000 010bf148 010bf148 010bf120
0x010bf0cc:   010bf120 cccccccc 00000000 cccccccc
0x010bf0dc:   cccccccc 42ff0000 00000000 00000000
0x010bf0ec:   00000000 00000000 00000000 00000000
0x010bf0fc:   00000000 00000000 00000000 010bf0e8 
Instructions: (pc=0x60b2510b)
0x60b250eb:   a1 00 00 00 00 50 51 56 a1 e0 37 d1 60 33 c5 50
0x60b250fb:   8d 45 f4 64 a3 00 00 00 00 c7 45 f0 00 00 00 00
0x60b2510b:   8b 01 8b 75 08 8b 50 0c 56 ff d2 8b c8 e8 e3 f7
0x60b2511b:   ff ff c7 45 fc 00 00 00 00 c7 45 f0 01 00 00 00 

Register to memory mapping:
EAX=0x010bf098 is pointing into the stack for thread: 0x0008bc00
EBX=0x00000000 is an unknown value
ECX=0x00000000 is an unknown value
EDX=0x08da0174 is an unknown value
ESP=0x010bf08c is pointing into the stack for thread: 0x0008bc00
EBP=0x010bf0a4 is pointing into the stack for thread: 0x0008bc00
ESI=0x010bf0b0 is pointing into the stack for thread: 0x0008bc00
EDI=0x010bf3e4 is pointing into the stack for thread: 0x0008bc00

Answer 1

我修好了！是的，这是" createFisherFaceRecognizer（） "的问题，因为它是从" cv.hpp"派生的。它出现在Visual Studio的IntelliSnse中，因为它来自类Cv，但我没有导入正确的库。我在每个opencv.lib文件的末尾添加了一个"d"，我还导入了cvcore和cvcorex。现在它起作用了。如果你有像我这样的问题，可能是这样的。完成后，我将很乐意分享我的代码。