我目前正在开发一种应用程序，在相机检测到身体后，图像（衬衫）将被覆盖。然而，在检测到身体后，相机崩溃了，我的logcat说Fatal signal 6 (SIGABRT), code -6 in tid 23908 (Thread-39833)。
以下是我目前所做的代码。
nerds_thesis_clartips_OpencvClass.h //头文件
#include <jni.h>
#include <opencv2/opencv.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <iostream>
#include <stdio.h>
using namespace cv;
using namespace std;
#ifndef _Included_nerds_thesis_clartips_OpencvClass
#define _Included_nerds_thesis_clartips_OpencvClass
#ifdef __cplusplus
extern "C" {
#endif
void detectHuman(Mat& frame);
Mat putShirt(Mat frame, Point center, Size humanSize);
JNIEXPORT void JNICALL Java_nerds_thesis_clartips_OpencvClass_humanDetection
(JNIEnv *, jclass, jlong);
#ifdef __cplusplus
}
#endif
#endif
nerds_thesis_clartips_OpencvClass.cpp // C ++文件
#include "nerds_thesis_clartips_OpencvClass.h"
JNIEXPORT void JNICALL Java_nerds_thesis_clartips_OpencvClass_humanDetection
(JNIEnv *, jclass, jlong addrRgba){
Mat& frame = *(Mat*)addrRgba;
detectHuman(frame);
}
void detectHuman(Mat& frame){
// assign xml file to a variable
String human_cascade_name = "/storage/emulated/0/data/haarcascade_upperbody.xml";
CascadeClassifier human_cascade;
// load xml file
if(!human_cascade.load( human_cascade_name ) ) { printf("--(!)Error loading\n"); return; };
std::vector<Rect> humans;
Mat frame_gray;
//convert input to grayscale
cvtColor( frame, frame_gray, CV_BGR2GRAY );
//increase image contrast
equalizeHist( frame_gray, frame_gray);
//Detect Human
human_cascade.detectMultiScale( frame_gray, humans, 1.1, 2, 0 | CV_HAAR_SCALE_IMAGE, Size(100, 100) );
// Draw the mask over all rectangles
for (size_t i = 0; i < humans.size(); i++){
Rect r = humans[i];
Mat humanROI = frame_gray( humans[i] ); //image of the upper body
int h_temp = humans[i].height; // storing original height
int x = humans[i].x;
int y = humans[i].y - h_temp*(-0.6); // y is increased by 0.6*h
int w = humans[i].width;
int h = h_temp; // height detected
rectangle(frame, Point(x,y), Point(x + w,y +h),Scalar(255,0,255));
Point center( humans[i].x + humans[i].width*0.5, humans[i].y + humans[i].height*0.5 );
frame = putShirt(frame,center,Size( humans[i].width, humans[i].height));
}
}
Mat putShirt(Mat frame, Point center, Size humanSize){
Mat mask = imread("C:/Users/Requinala/AndroidStudioProjects/CLARTIPS/app/src/main/res/drawable/bluevelvet.png");
Mat mask1,src1;
resize(mask,mask1,humanSize);
// ROI selection
Rect roi(center.x - humanSize.width/2, center.y - humanSize.width/2, humanSize.width, humanSize.width);
frame(roi).copyTo(src1);
// to make the white region transparent
Mat mask2,m,m1;
cvtColor(mask1,mask2,CV_BGR2GRAY);
threshold(mask2,mask2,230,255,CV_THRESH_BINARY_INV);
vector<Mat> maskChannels(3),result_mask(3);
split(mask1, maskChannels);
bitwise_and(maskChannels[0],mask2,result_mask[0]);
bitwise_and(maskChannels[1],mask2,result_mask[1]);
bitwise_and(maskChannels[2],mask2,result_mask[2]);
merge(result_mask,m ); // imshow("m",m);
mask2 = 255 - mask2;
vector<Mat> srcChannels(3);
split(src1, srcChannels);
bitwise_and(srcChannels[0],mask2,result_mask[0]);
bitwise_and(srcChannels[1],mask2,result_mask[1]);
bitwise_and(srcChannels[2],mask2,result_mask[2]);
merge(result_mask,m1 ); // imshow("m1",m1);
addWeighted(m,1,m1,1,0,m1); // imshow("m2",m1);
m1.copyTo(frame(roi));
return frame;
}
OpencvCamera.java //摄像机的Java类
public class OpencvCamera extends AppCompatActivity implements CameraBridgeViewBase.CvCameraViewListener2{
Mat mRgba;
@Override
public void onCameraViewStarted(int width, int height) {
mRgba = new Mat(height, width, CvType.CV_8UC4);
}
@Override
public Mat onCameraFrame(CameraBridgeViewBase.CvCameraViewFrame inputFrame) {
mRgba = inputFrame.rgba();
OpencvClass.humanDetection(mRgba.getNativeObjAddr());
return mRgba;
}
}
OpencvClass.java // jni的java类
public class OpencvClass {
public native static void humanDetection(long addrRgba);
}
logcats
02-24 16:45:36.269 13615-23908/? A/libc: Fatal signal 6 (SIGABRT), code -6 in tid 23908 (Thread-39833)
02-24 16:45:36.372 280-280/? I/DEBUG: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
02-24 16:45:36.372 280-280/? I/DEBUG: Build fingerprint: 'CMCC/M631Y/M631Y:5.1.1/LMY47V/M631Y_02.24.00RPD_HK.00:user/release-keys'
02-24 16:45:36.372 280-280/? I/DEBUG: Revision: '0'
02-24 16:45:36.372 280-280/? I/DEBUG: ABI: 'arm'
02-24 16:45:36.373 280-280/? I/DEBUG: pid: 13615, tid: 23908, name: Thread-39833 >>> nerds.thesis.clartips <<<
02-24 16:45:36.373 280-280/? I/DEBUG: signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------
02-24 16:45:36.396 280-280/? I/DEBUG: r0 00000000 r1 00005d64 r2 00000006 r3 00000000
02-24 16:45:36.396 280-280/? I/DEBUG: r4 a4674dd8 r5 00000006 r6 00000000 r7 0000010c
02-24 16:45:36.396 280-280/? I/DEBUG: r8 00000047 r9 00000001 sl a4674400 fp 0000203e
02-24 16:45:36.397 280-280/? I/DEBUG: ip 00005d64 sp a46732a0 lr b6dbfc2d pc b6de5f3c cpsr 600f0010
02-24 16:45:36.397 280-280/? I/DEBUG: backtrace:
02-24 16:45:36.397 280-280/? I/DEBUG: #00 pc 00039f3c /system/lib/libc.so (tgkill+12)
02-24 16:45:36.397 280-280/? I/DEBUG: #01 pc 00013c29 /system/lib/libc.so (pthread_kill+52)
02-24 16:45:36.397 280-280/? I/DEBUG: #02 pc 00014847 /system/lib/libc.so (raise+10)
02-24 16:45:36.397 280-280/? I/DEBUG: #03 pc 00010fd5 /system/lib/libc.so (__libc_android_abort+36)
02-24 16:45:36.397 280-280/? I/DEBUG: #04 pc 0000f534 /system/lib/libc.so (abort+4)
02-24 16:45:36.397 280-280/? I/DEBUG: #05 pc 008a2e50 /data/app/nerds.thesis.clartips-2/lib/arm/libopencv_java3.so (_ZN9__gnu_cxx27__verbose_terminate_handlerEv+344)
02-24 16:45:36.398 280-280/? I/DEBUG: #06 pc 0087914c /data/app/nerds.thesis.clartips-2/lib/arm/libopencv_java3.so (_ZN10__cxxabiv111__terminateEPFvvE+4)
02-24 16:45:36.398 280-280/? I/DEBUG: #07 pc 0087918c /data/app/nerds.thesis.clartips-2/lib/arm/libopencv_java3.so (_ZSt9terminatev+16)
02-24 16:45:36.398 280-280/? I/DEBUG: #08 pc 00878b68 /data/app/nerds.thesis.clartips-2/lib/arm/libopencv_java3.so (__cxa_throw+168)
02-24 16:45:36.398 280-280/? I/DEBUG: #09 pc 001c8305 /data/app/nerds.thesis.clartips-2/lib/arm/libopencv_java3.so (_ZN2cv5errorERKNS_9ExceptionE+244)
02-24 16:45:36.398 280-280/? I/DEBUG: #10 pc 001c8445 /data/app/nerds.thesis.clartips-2/lib/arm/libopencv_java3.so (_ZN2cv5errorEiRKNS_6StringEPKcS4_i+96)
02-24 16:45:36.398 280-280/? I/DEBUG: #11 pc 0037660f /data/app/nerds.thesis.clartips-2/lib/arm/libopencv_java3.so (_ZN2cv6resizeERKNS_11_InputArrayERKNS_12_OutputArrayENS_5Size_IiEEddi+406)
02-24 16:45:36.399 280-280/? I/DEBUG: #12 pc 0000fbf5 /data/app/nerds.thesis.clartips-2/lib/arm/libMyLibs.so (putShirt+172)
02-24 16:45:36.399 280-280/? I/DEBUG: #13 pc 0000f7ab /data/app/nerds.thesis.clartips-2/lib/arm/libMyLibs.so (detectHuman+842)
02-24 16:45:36.399 280-280/? I/DEBUG: #14 pc 0015fc6d /data/dalvik-cache/arm/data@app@nerds.thesis.clartips-2@base.apk@classes.dex
我是初学者，我已经搜索了SIGABRT，并且说它有关于记忆问题的事情。我无法找到我的代码中出错的地方。
这非常重要。所有帮助/想法都将受到赞赏，因为这将成为我在大学的最终成果。
答案 0 :(得分：1)
pairs从您的PC磁盘读取 png 。难怪它失败了。你应该
您可以使用Java将资源（或资源）中的图像提取到本地存储，也可以使用Android assets native API直接从APK中读取此类图像。
资产似乎更适合您的事业，因为可绘制的资源可以适应屏幕分辨率。
使用带有 imread（）的原生资产API是可行的，但很棘手。