Exemplo n.º 1
0
        public static Bitmap ImageToBitmap(ColorByteImage image)
        {
            Bitmap B = new Bitmap(image.Width, image.Height, PixelFormat.Format24bppRgb);

            LockBitmapInfo lbi = LockBitmap(B);

            try
            {
                for (int j = 0; j < image.Height; j++)
                {
                    for (int i = 0; i < image.Width; i++)
                    {
                        ColorBytePixel p = image[i, j];
                        lbi.data[lbi.linewidth * j + i * 4]     = p.b;
                        lbi.data[lbi.linewidth * j + i * 4 + 1] = p.g;
                        lbi.data[lbi.linewidth * j + i * 4 + 2] = p.r;
                    }
                }
            }
            finally
            {
                UnlockBitmap(lbi);
            }

            return(B);
        }
Exemplo n.º 2
0
        public static Bitmap ImageToBitmap(GrayscaleFloatImage image)
        {
            Bitmap B = new Bitmap(image.Width, image.Height, PixelFormat.Format24bppRgb);

            LockBitmapInfo lbi = LockBitmap(B);

            try
            {
                for (int j = 0; j < image.Height; j++)
                {
                    for (int i = 0; i < image.Width; i++)
                    {
                        byte c = image[i, j] < 0.0f ? (byte)0 : image[i, j] > 255.0f ? (byte)255 : (byte)image[i, j];
                        lbi.data[lbi.linewidth * j + i * 4]     = c;
                        lbi.data[lbi.linewidth * j + i * 4 + 1] = c;
                        lbi.data[lbi.linewidth * j + i * 4 + 2] = c;
                    }
                }
            }
            finally
            {
                UnlockBitmap(lbi);
            }

            return(B);
        }
Exemplo n.º 3
0
        public static GrayscaleFloatImage BitmapToGrayscaleFloatImage(Bitmap B)
        {
            int W = B.Width, H = B.Height;
            GrayscaleFloatImage res = new GrayscaleFloatImage(W, H);

            if (B.PixelFormat == PixelFormat.Format8bppIndexed)
            {
                Color[] pi  = B.Palette.Entries;
                byte[]  pal = new byte[1024];
                for (int i = 0; i < pi.Length; i++)
                {
                    Color C = pi[i];
                    pal[i * 4]     = C.B;
                    pal[i * 4 + 1] = C.G;
                    pal[i * 4 + 2] = C.R;
                    pal[i * 4 + 3] = C.A;
                }

                LockBitmapInfo lbi = LockBitmap(B, PixelFormat.Format8bppIndexed, 1);
                try
                {
                    for (int j = 0; j < H; j++)
                    {
                        for (int i = 0; i < W; i++)
                        {
                            int c = lbi.data[lbi.linewidth * j + i];
                            int b = pal[c * 4];
                            int g = pal[c * 4 + 1];
                            int r = pal[c * 4 + 2];
                            res[i, j] = 0.114f * b + 0.587f * g + 0.299f * r;
                        }
                    }
                }
                finally
                {
                    UnlockBitmap(lbi);
                }
            }
            else
            {
                LockBitmapInfo lbi = LockBitmap(B);
                try
                {
                    for (int j = 0; j < H; j++)
                    {
                        for (int i = 0; i < W; i++)
                        {
                            int b = lbi.data[lbi.linewidth * j + i * 4];
                            int g = lbi.data[lbi.linewidth * j + i * 4 + 1];
                            int r = lbi.data[lbi.linewidth * j + i * 4 + 2];
                            res[i, j] = 0.114f * b + 0.587f * g + 0.299f * r;
                        }
                    }
                }
                finally
                {
                    UnlockBitmap(lbi);
                }
            }

            return(res);
        }
Exemplo n.º 4
0
 public static void UnlockBitmap(LockBitmapInfo lbi)
 {
     lbi.B.UnlockBits(lbi.bitmapData);
     lbi.bitmapData = null;
     lbi.data       = null;
 }
Exemplo n.º 5
0
        public static ColorByteImage BitmapToColorByteImage(Bitmap B)
        {
            int            W = B.Width, H = B.Height;
            ColorByteImage res = new ColorByteImage(W, H);

            if (B.PixelFormat == PixelFormat.Format8bppIndexed)
            {
                Color[] pi  = B.Palette.Entries;
                byte[]  pal = new byte[1024];
                for (int i = 0; i < pi.Length; i++)
                {
                    Color C = pi[i];
                    pal[i * 4]     = C.B;
                    pal[i * 4 + 1] = C.G;
                    pal[i * 4 + 2] = C.R;
                    pal[i * 4 + 3] = C.A;
                }

                LockBitmapInfo lbi = LockBitmap(B, PixelFormat.Format8bppIndexed, 1);
                try
                {
                    for (int j = 0; j < H; j++)
                    {
                        for (int i = 0; i < W; i++)
                        {
                            int  c = lbi.data[lbi.linewidth * j + i];
                            byte b = pal[c * 4];
                            byte g = pal[c * 4 + 1];
                            byte r = pal[c * 4 + 2];
                            res[i, j] = new ColorBytePixel()
                            {
                                b = b, g = g, r = r, a = 255
                            };
                        }
                    }
                }
                finally
                {
                    UnlockBitmap(lbi);
                }
            }
            else
            {
                LockBitmapInfo lbi = LockBitmap(B);
                try
                {
                    for (int j = 0; j < H; j++)
                    {
                        for (int i = 0; i < W; i++)
                        {
                            byte b = lbi.data[lbi.linewidth * j + i * 4];
                            byte g = lbi.data[lbi.linewidth * j + i * 4 + 1];
                            byte r = lbi.data[lbi.linewidth * j + i * 4 + 2];
                            res[i, j] = new ColorBytePixel()
                            {
                                b = b, g = g, r = r, a = 255
                            };
                        }
                    }
                }
                finally
                {
                    UnlockBitmap(lbi);
                }
            }

            return(res);
        }