public static Bitmap[] gdcmBitmap2Bitmap(gdcm.Bitmap bmjpeg2000)
{
// przekonwertuj teraz na bitmapę C#
uint cols = bmjpeg2000.GetColumns();
uint rows = bmjpeg2000.GetRows();
// wartość zwracana - tyle obrazków, ile warstw
Bitmap[] ret = new Bitmap[1];
// bufor
byte[] bufor = new byte[bmjpeg2000.GetBufferLength()];
if (!bmjpeg2000.GetBuffer(bufor))
{
throw new Exception("błąd pobrania bufora");
}
// w strumieniu na każdy piksel 2 bajty; tutaj LittleEndian (mnie znaczący bajt wcześniej)
Bitmap X = new Bitmap((int)rows / 3, (int)cols / 3);
double[,] Y = new double[rows, cols];
double m = 0;
int stride = (int)cols * 4;
int size = (int)rows * stride;
for (int r = 0; r < bufor.Length - 1; r++)
{
// przeskalujemy potem do wartości max.
if (bufor[r] * 256 + bufor[r + 1] > m)
{
m = bufor[r] * 256 + bufor[r + 1];
}
}
// wolniejsza metoda tworzenia bitmapy
for (int r = 0; r < rows / 3; r++)
{
for (int c = 0; c < cols / 3; c++)
{
int index = c * 3 * stride + 3 * r * 3;
if (index + 2 < bufor.Length)
{
int red = (int)(255 * (bufor[index] * 256 + bufor[index + 1]) / m);
int green = (int)(255 * (bufor[index + 1] * 256 + bufor[index + 2]) / m);
int blue = (int)(255 * (bufor[index + 2] * 256 + bufor[index + 3]) / m);
X.SetPixel(r, c, Color.FromArgb(red, green, blue));
}
}
}
// kolejna bitmapa
ret[0] = X;
return(ret);
}
public static Bitmap[] gdcmBitmap2Bitmap(gdcm.Bitmap bmjpeg2000)
{
// przekonwertuj teraz na bitmapę C#
uint cols = bmjpeg2000.GetDimension(0);
uint rows = bmjpeg2000.GetDimension(1);
uint layers = bmjpeg2000.GetDimension(2);
// wartość zwracana - tyle obrazków, ile warstw
Bitmap[] ret = new Bitmap[layers];
// bufor
byte[] bufor = new byte[bmjpeg2000.GetBufferLength()];
if (!bmjpeg2000.GetBuffer(bufor))
{
throw new Exception("błąd pobrania bufora");
}
// w strumieniu na każdy piksel 2 bajty; tutaj LittleEndian (mnie znaczący bajt wcześniej)
for (uint l = 0; l < layers; l++)
{
Bitmap X = new Bitmap((int)cols, (int)rows);
double[,] Y = new double[cols, rows];
double m = 0;
for (int r = 0; r < rows; r++)
{
for (int c = 0; c < cols; c++)
{
// współrzędne w strumieniu
int j = ((int)(l * rows * cols) + (int)(r * cols) + (int)c) * 2;
Y[r, c] = (double)bufor[j + 1] * 256 + (double)bufor[j];
// przeskalujemy potem do wartości max.
if (Y[r, c] > m)
{
m = Y[r, c];
}
}
}
// wolniejsza metoda tworzenia bitmapy
for (int r = 0; r < rows; r++)
{
for (int c = 0; c < cols; c++)
{
int f = (int)(255 * (Y[r, c] / m));
X.SetPixel(c, r, Color.FromArgb(f, f, f));
}
}
// kolejna bitmapa
ret[l] = X;
}
return(ret);
}
public static System.Drawing.Bitmap[] gdcmBitmap2Bitmap(gdcm.Bitmap bmjpeg2000)
{
uint columns = bmjpeg2000.GetDimension(0);
uint rows = bmjpeg2000.GetDimension(1);
uint layers = bmjpeg2000.GetDimension(2);
System.Drawing.Bitmap[] ret = new System.Drawing.Bitmap[layers];
byte[] bufor = new byte[bmjpeg2000.GetBufferLength()];
if (!bmjpeg2000.GetBuffer(bufor))
{
throw new Exception("Błąd pobrania bufora");
}
for (uint l = 0; l < layers; l++)
{
System.Drawing.Bitmap X = new System.Drawing.Bitmap((int)columns, (int)rows);
double[,] Y = new double[columns, rows];
double m = 0;
for (int r = 0; r < rows; r++)
{
for (int c = 0; c < columns; c++)
{
int j = ((int)(l * rows * columns) + (int)(r * columns) + (int)c) * 2;
Y[r, c] = (double)bufor[j + 1] * 256 + (double)bufor[j];
if (Y[r, c] > m)
{
m = Y[r, c];
}
}
}
for (int r = 0; r < rows; r++)
{
for (int c = 0; c < columns; c++)
{
int f = (int)(255 * (Y[r, c] / m));
X.SetPixel(c, r, System.Drawing.Color.FromArgb(f, f, f));
}
}
ret[l] = X;
}
return(ret);
}