// по горизонтали
            for (int y = 0; y < im.Height; y++)
            {
                for (int x = 0; x < im.Width; x++)
                {
                    sumR = 0;
                    sumG = 0;
                    sumB = 0;
                    for (int k = 0; k < n; k++)
                    {
                        cur_x = x - rad + k;
                        if (cur_x < 0) cur_x = 0;
                        if (cur_x > im.Width - 1) cur_x = im.Width - 1;
                        c = im_color[cur_x, y];
                        cR = System.Convert.ToInt32(c.R);
                        cG = System.Convert.ToInt32(c.G);
                        cB = System.Convert.ToInt32(c.B);
                        sumR += vect[k] * cR;
                        sumG += vect[k] * cG;
                        sumB += vect[k] * cB;
                    }
                    sumR /= sum;
                    sumG /= sum;
                    sumB /= sum;
                    im.SetPixel(x, y, Color.FromArgb((int)sumR, (int)sumG, (int)sumB));
                }
            }

             // по вертикали
            for (int y = 0; y < im.Height; y++)
            {
                for (int x = 0; x < im.Width; x++)
                {
                    sumR = 0;
                    sumG = 0;
                    sumB = 0;
                    for (int k = 0; k < n; k++)
                    {


                        cur_y = y - rad + k;
                        if (cur_y < 0) cur_y = 0;
                        if (cur_y > im.Height - 1) cur_y = im.Height - 1;

                        c = im_color[x, cur_y];
                        cR = System.Convert.ToInt32(c.R);
                        cG = System.Convert.ToInt32(c.G);
                        cB = System.Convert.ToInt32(c.B);
                        sumR += vect[k] * cR;
                        sumG += vect[k] * cG;
                        sumB += vect[k] * cB;

                    }
                    sumR /= sum;
                    sumG /= sum;
                    sumB /= sum;
                    im.SetPixel(x, y, Color.FromArgb((int)sumR, (int)sumG, (int)sumB));
                }
            }