/// <summary>
/// read the data from each image
/// </summary>
/// <param name="brLabels"></param>
/// <param name="brImages"></param>
/// <returns></returns>
private IList <INetworkInputData> readFileInformation(BinaryReader brLabels, BinaryReader brImages)
{
var networkData = m_bf.CreateList <INetworkInputData>();
int magic1 = brImages.ReadInt32(); // discard
int numImages = brImages.ReadInt32();
int numRows = brImages.ReadInt32();
int numCols = brImages.ReadInt32();
int magic2 = brLabels.ReadInt32();
int numLabels = brLabels.ReadInt32();
if (numImages != numLabels)
{
throw new IndexOutOfRangeException("The image and label count from the file headers is not equal.");
}
// each test image
for (int di = 0; di < numImages; ++di)
{
var dataSet = m_bf.CreateNetworkInputData();
dataSet.initDoubleArray(numRows, numCols);
for (int i = 0; i < numRows; ++i)
{
for (int j = 0; j < numCols; ++j)
{
// to get a number between 0.0 and 1.0
// the biggest byte number is 255, so this is the denominator
dataSet.ImageNumbers[i][j] = brImages.ReadByte() / 255.0;
}
}
dataSet.ExpectedResult = brLabels.ReadByte();
networkData.Add(dataSet);
} // each image
return(networkData);
}
