/// <summary>
/// Extracts a channel as a Grayscale image. Uses the <see cref="M:IArrayHandler.ExtractChannel"/> method.
/// </summary>
/// <param name="handler">The image upon which to operate</param>
/// <param name="channel">The channel to extract</param>
/// <returns>An image representation of the channel</returns>
public static unsafe GrayscaleImage ExtractChannelAsImage(this IArrayHandler <float> handler, int channel)
{
float[,] buffer = handler.ExtractChannel(channel);
int rows = handler.Rows;
int columns = handler.Columns;
float[, ,] data = new float[rows, columns, 1];
fixed(float *channelSrc = buffer, dataSrc = data)
{
float *channelPtr = channelSrc;
float *dataPtr = dataSrc;
int count = rows * columns;
while (count-- > 0)
{
*dataPtr++ = *channelPtr++;
}
}
GrayscaleImage gray = new GrayscaleImage();
gray.SetData(data);
return(gray);
}
