/// <summary> /// Perform a Median fiter using a 5x5 Mask /// </summary> /// <param name="b">Image to Process</param> /// <returns>Filtered Image</returns> public static Bitmap Median5x5(Bitmap b) { ImagerBitmap i = new ImagerBitmap(b.Clone() as Bitmap); ImagerBitmap i2 = new ImagerBitmap(b.Clone() as Bitmap); for (int column = 2; column < i.Bitmap.Width - 2; column++) { for (int row = 2; row < i.Bitmap.Height - 2; row++) { Color[,] c = i.Get5x5(row, column); int red = Median(c[0, 0].R, c[0, 1].R, c[0, 2].R, c[0, 3].R, c[0, 4].R, c[1, 0].R, c[1, 1].R, c[1, 2].R, c[1, 3].R, c[1, 4].R, c[2, 0].R, c[2, 1].R, c[2, 2].R, c[2, 3].R, c[2, 4].R, c[3, 0].R, c[3, 1].R, c[3, 2].R, c[3, 3].R, c[3, 4].R, c[4, 0].R, c[4, 1].R, c[4, 2].R, c[4, 3].R, c[4, 4].R); int green = Median(c[0, 0].G, c[0, 1].G, c[0, 2].G, c[0, 3].G, c[0, 4].G, c[1, 0].G, c[1, 1].G, c[1, 2].G, c[1, 3].G, c[1, 4].G, c[2, 0].G, c[2, 1].G, c[2, 2].G, c[2, 3].G, c[2, 4].G, c[3, 0].G, c[3, 1].G, c[3, 2].G, c[3, 3].G, c[3, 4].G, c[4, 0].G, c[4, 1].G, c[4, 2].G, c[4, 3].G, c[4, 4].G); int blue = Median(c[0, 0].B, c[0, 1].B, c[0, 2].B, c[0, 3].B, c[0, 4].B, c[1, 0].B, c[1, 1].B, c[1, 2].B, c[1, 3].B, c[1, 4].B, c[2, 0].B, c[2, 1].B, c[2, 2].B, c[2, 3].B, c[2, 4].B, c[3, 0].B, c[3, 1].B, c[3, 2].B, c[3, 3].B, c[3, 4].B, c[4, 0].B, c[4, 1].B, c[4, 2].B, c[4, 3].B, c[4, 4].B); i2.SetPixel(column, row, Color.FromArgb(red, green, blue)); } } i.UnlockBitmap(); i2.UnlockBitmap(); return i2.Bitmap.Clone() as Bitmap; }
/// <summary> /// Perform a Binomial filter using a 5x5 Mask /// </summary> /// <param name="b">Image to Process</param> /// <returns>Filtered Image</returns> public static Bitmap Binomial5x5(Bitmap b) { ImagerBitmap i = new ImagerBitmap(b.Clone() as Bitmap); ImagerBitmap i2 = new ImagerBitmap(b.Clone() as Bitmap); for (int column = 2; column < i.Bitmap.Width - 2; column++) { for (int row = 2; row < i.Bitmap.Height - 2; row++) { Color[,] c = i.Get5x5(row, column); int red = ((c[0, 0].R * 1) + (c[0, 1].R * 4) + (c[0, 2].R * 6) + (c[0, 3].R * 4) + (c[0, 4].R * 1) + (c[1, 0].R * 4) + (c[1, 1].R * 16) + (c[1, 2].R * 24) + (c[1, 3].R * 16) + (c[1, 4].R * 4) + (c[2, 0].R * 6) + (c[2, 1].R * 24) + (c[2, 2].R * 36) + (c[2, 3].R * 24) + (c[2, 4].R * 6) + (c[3, 0].R * 4) + (c[3, 1].R * 16) + (c[3, 2].R * 24) + (c[3, 3].R * 16) + (c[3, 4].R * 4) + (c[4, 0].R * 1) + (c[4, 1].R * 4) + (c[4, 2].R * 6) + (c[4, 3].R * 4) + (c[4, 4].R * 1)) / 256; int green = ((c[0, 0].G * 1) + (c[0, 1].G * 4) + (c[0, 2].G * 6) + (c[0, 3].G * 4) + (c[0, 4].G * 1) + (c[1, 0].G * 4) + (c[1, 1].G * 16) + (c[1, 2].G * 24) + (c[1, 3].G * 16) + (c[1, 4].G * 4) + (c[2, 0].G * 6) + (c[2, 1].G * 24) + (c[2, 2].G * 36) + (c[2, 3].G * 24) + (c[2, 4].G * 6) + (c[3, 0].G * 4) + (c[3, 1].G * 16) + (c[3, 2].G * 24) + (c[3, 3].G * 16) + (c[3, 4].G * 4) + (c[4, 0].G * 1) + (c[4, 1].G * 4) + (c[4, 2].G * 6) + (c[4, 3].G * 4) + (c[4, 4].G * 1)) / 256; int blue = ((c[0, 0].B * 1) + (c[0, 1].B * 4) + (c[0, 2].B * 6) + (c[0, 3].B * 4) + (c[0, 4].B * 1) + (c[1, 0].B * 4) + (c[1, 1].B * 16) + (c[1, 2].B * 24) + (c[1, 3].B * 16) + (c[1, 4].B * 4) + (c[2, 0].B * 6) + (c[2, 1].B * 24) + (c[2, 2].B * 36) + (c[2, 3].B * 24) + (c[2, 4].B * 6) + (c[3, 0].B * 4) + (c[3, 1].B * 16) + (c[3, 2].B * 24) + (c[3, 3].B * 16) + (c[3, 4].B * 4) + (c[4, 0].B * 1) + (c[4, 1].B * 4) + (c[4, 2].B * 6) + (c[4, 3].B * 4) + (c[4, 4].B * 1)) / 256; i2.SetPixel(column, row, Color.FromArgb(red, green, blue)); } } i.UnlockBitmap(); i2.UnlockBitmap(); return i2.Bitmap.Clone() as Bitmap; }