Question

我一直在编写FaceRecognizer库的Java版本。我可以在Java OpenCV项目中成功初始化一个新的FaceRecognizer（默认使用Fisherface）。我用JNA来完成这个。但最近，我发现了＃34;火车＆＃34;方法有bug，所以我决定在DLL文件中进行整个识别，最后返回一个double值。但是当我制作一个像这样的新FaceRecognizer时：

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

或

Ptr<FaceRecognizer> model = createFisherFaceRecognizer();

它确实编译成功！但是当我用它们训练这样的时候：

model->train(libList,idList);

（libList是vector，idList是vector）

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]

我猜它与引用或指针有关，因为即使我运行

model->name();

它也崩溃了。好像它是＆＃34; model＆＃34;的问题。我真的很感谢你的帮助！非常感谢你！

这是记录的文件：

---------------  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（）”的一个问题，因为它来自“cv.hpp”。它出现在Visual Studio的IntelliSnse中，因为它来自Cv类，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。现在它有效。如果你有像我这样的问题，可能就是这样。一旦完成，我将很乐意分享我的代码。

Opencv JNA和C ++ FaceRecognizer导致JVM崩溃

1 个答案: