bool isBetween(int x, int L, int R)
        {
            return x >= L && x <= R;
        }
        //------------------
        //------------------
        public void Efekt3()
        {
            if (p == K)
                p = 0;

            for (int j = 1; j <= L - p * 2; j++)
            {
                for (int i = 1; i <= K; i++)
                {
                    ReadPixel(i, j);
                }
            }


            int x = 0;

            for (int j = L - p * 2 + 1; j <= L; j++)
            {
                for (int i = 1; i <= x; i++)
                {
                    if (isBetween(i, 1, L) && isBetween(j, 1, L))
                        ReadTlo(N);
                }

                for (int i = x + 1; i <= p * 2; i++)
                {
                    if (isBetween(i, 1, L) && isBetween(j, 1, L))
                        ReadPixel(i, j);
                }

                for (int i = p * 2 + 1; i <= K; i++)
                {
                    ReadPixel(i, j);
                }

                x++;
            }
        }