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hi! i tried this answer but its giving me this error: Exception in thread "main" java.lang.UnsupportedOperationException

How to do horizontal projection in opencv using java? I have a mat file that contains a binarized image and i would like

How can i remove horizontal lines(stave) in a sheet music image? I'm try to make an app that will take an image input of

the black part should be retained right? But in this case only the line that seperates the black and white remains black

Binarizing using AdaptiveThreshold turens black image to white I use this line of code for binarizing images: Imgproc.a

@berak Okay I' tried using float and i got 1.0 when i checked the value of a white pixel. Is that correct? also what doe

@berak. The reason I'm doing this is that my groupmate created a for loop that will be used in striding for CNN and he n

@berak is it still possible to get the pixel value of a mat and store that pixel value in an element of an array?

@berak changed it back to bytes and I check what value bytes[0] have and its -1. which is odd.

Changed it back to bytes and I check what value bytes[0] have and its -1. which is odd.

@berak I treid the imageBW.get(0,0,bytes) and its giving me this error java.lang.UnsupportedOperationException: Mat data

@berak I treid the imageBW.get(0,0,bytes) and its giving me this error java.lang.UnsupportedOperationException: Mat data

How to get pixel value of a binary image. How to get the values of a binarized image? I have this line of code that turn

@berak there was an error on the first line it says "incompatible types. required int, found long".

okay thanks. This helped a lot!

@berak. last question what kind of value would be stored in every element of the array? I really dont know anything abou

@berak I need to save it in a int array. and convert it to bitmap this is an experiment to test if what I'm thinking is

@berak I would like to simply see what value each pixel of a binary image is and store them in an int array. i would use

how can i store them? I would like to store the pixel values in an int array.

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);
}

this solved it! thanks can i ask what 11 and 2 is?

How to get pixel values of a binarized image in android studio? I want to get the pixel value of a binarized image and s

@Hatmpatn That s the answer that I went for. I haven't posted the answer here because it needs 2 days before answering y

How can I improve the binarization of image in my sample app I'a practicing in proprocessingiages in android studio and

How can I improve the binarization of image in my sample app I'a practicing in proprocessingiages in android studio and