I'm trying to implement object tracking in with features detect , but I got the following error:
It no need to show the object on screen but I need mark the object what I want to track , and here is my code .
public void onCameraViewStarted(int width, int height) {
mRgba = new Mat();
mGray = new Mat();
mView = new Mat();
mObject = new Mat();
}
public Mat onCameraFrame(CvCameraViewFrame inputFrame) {
mRgba = inputFrame.rgba();
switch (viewMode) {
case VIEW_MODE_RGBA:
return mRgba;
case VIEW_MODE_FeatureDetect:
try {
mGray = inputFrame.gray();
mObject = new Mat();
mObject = Highgui.imread(Environment.getExternalStorageDirectory()+ "/Android/data/" + getApplicationContext().getPackageName() + "/Files/Object.jpg", Highgui.CV_LOAD_IMAGE_GRAYSCALE);
mView = mGray.clone();
FeatureDetector myFeatureDetector = FeatureDetector.create(FeatureDetector.ORB);
MatOfKeyPoint keypoints = new MatOfKeyPoint();
myFeatureDetector.detect(mGray, keypoints);
MatOfKeyPoint objectkeypoints = new MatOfKeyPoint();
myFeatureDetector.detect(mObject, objectkeypoints);
DescriptorExtractor Extractor = DescriptorExtractor.create(DescriptorExtractor.ORB);
Mat sourceDescriptors = new Mat();
Mat objectDescriptors = new Mat();
Extractor.compute(mGray, keypoints, sourceDescriptors);
Extractor.compute(mGray, objectkeypoints, objectDescriptors);
DescriptorMatcher matcher = DescriptorMatcher.create(DescriptorMatcher.BRUTEFORCE);
MatOfDMatch matches = new MatOfDMatch();
matcher.match(sourceDescriptors, objectDescriptors, matches);
Features2d.drawMatches(mGray, keypoints, mObject, objectkeypoints, matches, mView);
return mView;
} catch (Exception e) {
Log.d("Exception",e.getMessage());
}
}
return mRgba;
}
Sorry about my English , I hope you understand what I'm asking . Thanks for any suggestion .
