이미지 (비트 맵)에 적응 형 임계 값을 사용하려고합니다. 안드로이드에서 매트로 변경 한 다음 그레이 스케일로 변환해야합니다.cverror android assertion failed (scn == 3) Android
다음은 비트 맵 만들기부터 시작하는 코드입니다. 방금 전에 사진을 찍었 기 때문에 자르기라는 이름이 붙었습니다.
Bitmap bmCrop = BitmapFactory.decodeStream(iStream);
Bitmap bmThreshed = null;
/*
* Initialize the Mats
*/
Mat threshed = new Mat(bmCrop.getHeight(),bmCrop.getWidth(), CvType.CV_8UC1, new Scalar(4));//, new Scalar(4)
//Mat crop = new Mat();
Mat crop = new Mat(bmCrop.getHeight(),bmCrop.getWidth(), CvType.CV_8UC1,new Scalar(4));//, new Scalar(4)
/*
* Convert the Mats to Grayscale
*/
if(!threshed.empty())
Imgproc.cvtColor(threshed, threshed, Imgproc.COLOR_RGB2GRAY,1);// CURRENTLY BREAKING HERE
if(!crop.empty())
Imgproc.cvtColor(crop, crop, Imgproc.COLOR_BGR2GRAY,1);
Utils.bitmapToMat(bmCrop, crop);
// Mat src, Mat dst, double maxValue, int adaptiveMethod, int thresholdType, int blockSize, double C
Imgproc.adaptiveThreshold(crop, threshed, 255, Imgproc.ADAPTIVE_THRESH_MEAN_C, Imgproc.THRESH_BINARY_INV, 15, 8);
Utils.matToBitmap(threshed, bmThreshed);
bmThreshed = bmCrop;
그것은 현재 라인에 위반된다 "Imgproc.cvtColor이 (타작 타작, Imgproc.COLOR_RGB2GRAY, 1)"여기서 내가 매트에 cvtColor을 시도합니다.
05-28 11:25:21.172: E/cv::error()(32505): OpenCV Error: Assertion failed (scn == 3 || scn == 4) in void cv::cvtColor(cv::InputArray, cv::OutputArray, int, int), file /home/reports/ci/slave/50-SDK/opencv/modules/imgproc/src/color.cpp, line 3414
05-28 11:25:25.697: D/AndroidRuntime(32505): Shutting down VM
05-28 11:25:25.707: W/dalvikvm(32505): threadid=1: thread exiting with uncaught exception (group=0x414b1930)
05-28 11:25:25.747: E/AndroidRuntime(32505): FATAL EXCEPTION: main
05-28 11:25:25.747: E/AndroidRuntime(32505): CvException [org.opencv.core.CvException: /home/reports/ci/slave/50-SDK/opencv/modules/imgproc/src/color.cpp:3414: error: (-215) scn == 3 || scn == 4 in function void cv::cvtColor(cv::InputArray, cv::OutputArray, int, int)
05-28 11:25:25.747: E/AndroidRuntime(32505): ]
05-28 11:25:25.747: E/AndroidRuntime(32505): at org.opencv.imgproc.Imgproc.cvtColor_0(Native Method)
05-28 11:25:25.747: E/AndroidRuntime(32505): at org.opencv.imgproc.Imgproc.cvtColor(Imgproc.java:4017)
05-28 11:25:25.747: E/AndroidRuntime(32505): at com.activity.IMGP_Camera$1.onManagerConnected(IMGP_Camera.java:263)
05-28 11:25:25.747: E/AndroidRuntime(32505): at org.opencv.android.AsyncServiceHelper$1.onServiceConnected(AsyncServiceHelper.java:318)
05-28 11:25:25.747: E/AndroidRuntime(32505): at android.app.LoadedApk$ServiceDispatcher.doConnected(LoadedApk.java:1101)
05-28 11:25:25.747: E/AndroidRuntime(32505): at android.app.LoadedApk$ServiceDispatcher$RunConnection.run(LoadedApk.java:1118)
05-28 11:25:25.747: E/AndroidRuntime(32505): at android.os.Handler.handleCallback(Handler.java:725)
05-28 11:25:25.747: E/AndroidRuntime(32505): at android.os.Handler.dispatchMessage(Handler.java:92)
05-28 11:25:25.747: E/AndroidRuntime(32505): at android.os.Looper.loop(Looper.java:137)
05-28 11:25:25.747: E/AndroidRuntime(32505): at android.app.ActivityThread.main(ActivityThread.java:5226)
05-28 11:25:25.747: E/AndroidRuntime(32505): at java.lang.reflect.Method.invokeNative(Native Method)
05-28 11:25:25.747: E/AndroidRuntime(32505): at java.lang.reflect.Method.invoke(Method.java:511)
05-28 11:25:25.747: E/AndroidRuntime(32505): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
05-28 11:25:25.747: E/AndroidRuntime(32505): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:562)
05-28 11:25:25.747: E/AndroidRuntime(32505): at dalvik.system.NativeStart.main(Native Method)
감사합니다. –