Read.cs

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Filtermap
{
  


    class Read
    {
        Bitmap Obj;
        int Width, Height;
        public int[] INputStrt;
        public int[,] GreyImage;
        public int[,] Input;
        public Bitmap Disp;
       

        public Read(Bitmap Input)
        {

            Obj = Input;
            Width = Obj.Width;
            Height = Obj.Height;
            ReadImage();
        }
        private void ReadImage()
        {
            int i, j;
            GreyImage = new int[Width, Height];  //[Row,Column]
            Input = new int[Width, Height];  //[Row,Column]
          
            Bitmap image = Obj;
            BitmapData bitmapData1 = image.LockBits(new Rectangle(0, 0, image.Width, image.Height),
                                     ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
            unsafe
            {
                byte* imagePointer1 = (byte*)bitmapData1.Scan0;

                for (i = 0; i < bitmapData1.Height; i++)
                {
                    for (j = 0; j < bitmapData1.Width; j++)
                    {
                        GreyImage[j, i] = (int)((imagePointer1[0] + imagePointer1[1] + imagePointer1[2]) / 3.0);
                        Input[j, i] = (int)GreyImage[j, i];
                        //4 bytes per pixel
                        imagePointer1 += 4;
                    }//end for j
                    //4 bytes per pixel
                    imagePointer1 += bitmapData1.Stride - (bitmapData1.Width * 4);
                }//end for i
            }//end unsafe
            image.UnlockBits(bitmapData1);
            return;
        }
        public Bitmap Displayimage(int[,] image)
        {
            int i, j;
            Bitmap output = new Bitmap(image.GetLength(0), image.GetLength(1));
            BitmapData bitmapData1 = output.LockBits(new Rectangle(0, 0, image.GetLength(0), image.GetLength(1)),
                                     ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
            unsafe
            {
                byte* imagePointer1 = (byte*)bitmapData1.Scan0;
                for (i = 0; i < bitmapData1.Height; i++)
                {
                    for (j = 0; j < bitmapData1.Width; j++)
                    {
                        imagePointer1[0] = (byte)image[j, i];
                        imagePointer1[1] = (byte)image[j, i];
                        imagePointer1[2] = (byte)image[j, i];
                        imagePointer1[3] = 255;
                        //4 bytes per pixel
                        imagePointer1 += 4;
                    }//end for j
                    //4 bytes per pixel
                    imagePointer1 += (bitmapData1.Stride - (bitmapData1.Width * 4));
                }//end for i
            }//end unsafe
            output.UnlockBits(bitmapData1);
            return output;// col;
        }
        public int[] straight()
        {
            Disp = Displayimage(Input);
            int k = 0;
            INputStrt = new int[1849];
            for (int i = 0; i < Width; i++)
            {
                for (int j = 0; j < Height; j++)
                {
                    INputStrt[k++] = Input[i, j];
                }
            }
            return INputStrt;
        }
       
    }
}