Accord.Imaging.HoughLineTransformation.ToBitmap C# (CSharp) Method

        public Bitmap ToBitmap()
        {
            // check if Hough transformation was made already
            if (houghMap == null)
                throw new InvalidOperationException("Hough transformation was not done yet.");

            int width = houghMap.GetLength(1);
            int height = houghMap.GetLength(0);

            // create new image
            Bitmap image = Accord.Imaging.Image.CreateGrayscaleImage(width, height);

            // lock destination bitmap data
            BitmapData imageData = image.LockBits(
                new Rectangle(0, 0, width, height),
                ImageLockMode.ReadWrite, PixelFormat.Format8bppIndexed);

            int offset = imageData.Stride - width;
            float scale = 255.0f / maxMapIntensity;

            // do the job
            unsafe
            {
                byte* dst = (byte*)imageData.Scan0.ToPointer();

                for (int y = 0; y < height; y++)
                {
                    for (int x = 0; x < width; x++, dst++)
                    {
                        *dst = (byte)System.Math.Min(255, (int)(scale * houghMap[y, x]));
                    }
                    dst += offset;
                }
            }

            // unlock destination images
            image.UnlockBits(imageData);

            return image;
        }