I'a practicing in proprocessingiages in android studio and I want to improve the binarihiszation of images in my program, for example i have this image:
and my program is binarizing it to this:
I would like to be able to maintain the horizontal lines(staff lines) for a horizontal line detection.
here is the piece of my code for the grayscale and binary:
public void convGray(View view) {
Mat Rgba = new Mat();
Mat grayMat = new Mat();
Mat imageBW = new Mat();
BitmapFactory.Options o = new BitmapFactory.Options();
o.inDither=false;
o.inSampleSize=4;
int width = imageBitmap.getWidth();
int height = imageBitmap.getHeight();
grayBitmap = Bitmap.createBitmap(width,height,Bitmap.Config.RGB_565);
//bitmap to Mat
Utils.bitmapToMat(imageBitmap,Rgba);
Imgproc.cvtColor(Rgba,grayMat,Imgproc.COLOR_RGB2GRAY);
Imgproc.threshold(grayMat,imageBW,100,255,Imgproc.THRESH_BINARY);
Utils.matToBitmap(imageBW,grayBitmap);
imageView.setImageBitmap(grayBitmap);
}
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