public Mat onCameraFrame(CvCameraViewFrame inputFrame) { mRgba = inputFrame.rgba(); if (mIsColorSelected) { abc = mDetector.process(mRgba); // hehe.setText(abc.toString()); List<MatOfPoint> contours = mDetector.getContours(); Log.e(TAG, "Contours count: " + contours.size()); Imgproc.drawContours(mRgba, contours, -1, CONTOUR_COLOR); Mat colorLabel = mRgba.submat(4, 68, 4, 68); colorLabel.setTo(mBlobColorRgba); Mat spectrumLabel = mRgba.submat(4, 4 + mSpectrum.rows(), 70, 70 + mSpectrum.cols()); mSpectrum.copyTo(spectrumLabel); } return mRgba; }