public static extern bool SetChannel(FIBITMAP dib, FIBITMAP dib8, FI_COLOR_CHANNEL channel);
public static extern FIBITMAP GetChannel(FIBITMAP dib, FI_COLOR_CHANNEL channel);
public static extern bool GetHistogram(FIBITMAP dib, int histo, FI_COLOR_CHANNEL channel);
public static extern bool AdjustCurve(FIBITMAP dib, byte[] lut, FI_COLOR_CHANNEL channel);
public static extern bool SetChannel(FIBITMAP dib, FIBITMAP dib8, FI_COLOR_CHANNEL channel);
public static extern FIBITMAP GetChannel(FIBITMAP dib, FI_COLOR_CHANNEL channel);
public static extern bool GetHistogram(FIBITMAP dib, int histo, FI_COLOR_CHANNEL channel);
public static extern bool AdjustCurve(FIBITMAP dib, byte[] lut, FI_COLOR_CHANNEL channel);