Localización de círculos V0.4.2 (detecta method)

/*
 * Created by SharpDevelop.
 * User: fhrl0
 * Date: 14/09/2019-21/02/2022
 * Time: 08:00 p. m.
 * Version: 0.4.2
 * To change this template use Tools | Options | Coding | Edit Standard Headers.
 */
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;

namespace Actividad_1
{
    /// <summary>
    /// Description of MainForm.
    /// </summary>
    public partial class MainForm : Form
    {
        Bitmap Original,Drawing;
        OpenFileDialog openFileDialogImagen=new OpenFileDialog();
        public MainForm()
        {
            //
            // The InitializeComponent() call is required for Windows Forms designer support.
            //
            InitializeComponent();

            //
            // TODO: Add constructor code after the InitializeComponent() call.
            //
        }
        int codificador(bool[]arregloBits){
            int abstracto=0;
            for(int i=0;i<arregloBits.Length;i++){
                abstracto=abstracto*2;
                if(arregloBits[i])
                    abstracto++;
            }
            return abstracto;
        }
        bool esNegro(int x,int y){
            return(int)Original.GetPixel(x,y).R
                 +(int)Original.GetPixel(x,y).G
                 +(int)Original.GetPixel(x,y).B<(int)383;
        }
        bool esMasOscuro(Color esteAComparar,Color QueElOtroAComparar){
            return((int)esteAComparar.R
                 +(int)esteAComparar.G
                 +(int)esteAComparar.B)
                              <
                 ((int)QueElOtroAComparar.R
                 +(int)QueElOtroAComparar.G
                 +(int)QueElOtroAComparar.B);
        }
        void ButtonMostrarClick(object sender, EventArgs e){
            if(pictureBoxMuestra.Image==null){
            }else{
                //Original=(Bitmap)pictureBoxMuestra.Image;
                Drawing=(Bitmap)(Original=(Bitmap)pictureBoxMuestra.Image);
                Point Inicio=new Point(0,0),
                        fin=new Point(Original.Width-1,Original.Height-1);
                //analizar(Inicio,Fin);
                analizar(0,0,Original.Width-1,Original.Height-1);
                pictureBoxMuestra.Refresh();
                pictureBoxMuestra.Image=Drawing;
            }

        }
        void analizar(Point inicio,Point fin){
            Point posicion=new Point();
            for(posicion.Y=inicio.Y;posicion.Y<fin.Y;posicion.Y++)
                for(posicion.X=inicio.X;posicion.X<fin.X;posicion.X++){
                    if(esMasOscuro(Drawing.GetPixel(posicion.X,posicion.Y),Color.Gray))
                        detecta(inicio,posicion,fin);
                    //Drawing.SetPixel(posicion.X,posicion.Y,Color.OrangeRed);
            }
            pictureBoxMuestra.Refresh();
        }
        /*void analizar(int inicioX, int inicioY,int finX,int finY){
            Point posicion=new Point();
            for(posicion.Y=inicioY;posicion.Y<finY;posicion.Y++)
                for(posicion.X=inicioX;posicion.X<finX;posicion.X++){
                    if(esMasOscuro(Drawing.GetPixel(posicion.X,posicion.Y),Color.Gray))
                        detecta(inicioX,inicioY,finX,finY);
                    //Drawing.SetPixel(posicion.X,posicion.Y,Color.OrangeRed);
            }
            pictureBoxMuestra.Refresh();
        }*/

        void detecta(Point inicio,Point posicion,Point fin){
            for(;;){
                esMasOscuro(Drawing.GetPixel(posicion.X,posicion.Y),Color.Gray)
            }
            if(inicioX< <finX && inicioY< <finY){

            }
            //Drawing.SetPixel(i,j,Color.OrangeRed);
        }
        void ButtonAbrirMouseClick(object sender, MouseEventArgs e){
            openFileDialogImagen.ShowDialog();
            pictureBoxMuestra.Image=Image.FromFile(openFileDialogImagen.FileName);

        }
    }