I'm trying to pass OpenCV Matrix to a cpp file but the data I read from the Matix in the cpp is not right.
I don't know what I'm missing here, Maybe something with the pointer.
This is part of my cpp file:
jintArray
Java_qc_yotm_mes_com_yo_1qc_MainActivity_stringFromJNI(JNIEnv *env,jclass cls,jint NUMBER_OF_HALF_LINES, jint HALF_LINE_LENGTH, jlong inMat) {
cv::Mat* GraySubMat = (cv::Mat*)inMat;
unsigned char * MatData = GraySubMat->data;
jdouble SumSpikesHeight = 0;
jint ListOfPeaks = 0;
jintArray ListSpikesCount = env->NewIntArray(2 * NUMBER_OF_HALF_LINES);
jintArray ListSpikesCountHeight = env->NewIntArray(2 * NUMBER_OF_HALF_LINES);
jint outarray[2 * NUMBER_OF_HALF_LINES];
for(int line_number = 0 ; line_number < 2 * NUMBER_OF_HALF_LINES ; line_number++) {
//Find Peaks on every 5 pixels
for (int i = 2; i < (HALF_LINE_LENGTH * 2) - 3; i++) {
if ((MatData[(line_number *HALF_LINE_LENGTH * 2)+i] > MatData[(line_number *HALF_LINE_LENGTH * 2)+i - 1]) && (MatData[(line_number *HALF_LINE_LENGTH * 2)+i] > MatData[(line_number *HALF_LINE_LENGTH * 2)+i - 2]) &&
(MatData[(line_number *HALF_LINE_LENGTH * 2)+i] > MatData[(line_number *HALF_LINE_LENGTH * 2)+i + 1]) && (MatData[(line_number *HALF_LINE_LENGTH * 2)+i] > MatData[(line_number *HALF_LINE_LENGTH * 2)+i + 2]) &&
(MatData[(line_number *HALF_LINE_LENGTH * 2)+i] > 0) ) {
ListOfPeaks++;
SumSpikesHeight += MatData[(line_number *HALF_LINE_LENGTH * 2)+i];
i += 3;
}
}
outarray[line_number] = ListOfPeaks*SumSpikesHeight;
SumSpikesHeight = 0;
ListOfPeaks=0;
}
env->SetIntArrayRegion(ListSpikesCountHeight, 0, 2 * NUMBER_OF_HALF_LINES, outarray);
return ListSpikesCountHeight;
}
This is the Java call:
int[] spikecountheight = stringFromJNI(NUMBER_OF_HALF_LINES, HALF_LINE_LENGTH, GraySubMat.getNativeObjAddr());
↧
