//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public static org.neuroph.core.data.DataSet createFromFile(String labelPath, String imagePath, int sampleCount) throws java.io.IOException
public static DataSet createFromFile(string labelPath, string imagePath, int sampleCount)
{
List <MNISTImage> mnistImages = MNISTImage.loadDigitImages(labelPath, imagePath);
DataSet dataSet = createDataSet(mnistImages, sampleCount);
return(dataSet);
}
// TODO; remove sampleCount param its ame as list count
private static DataSet createDataSet(List <MNISTImage> imageList, int sampleCount)
{
int pixelCount = imageList[0].Size;
int totalSize = 1024;
DataSet dataSet = new DataSet(totalSize, 10);
for (int i = 0; i < sampleCount; i++)
{
MNISTImage dImage = imageList[i];
double[] input = new double[totalSize];
double[] output = new double[10];
for (int j = 0; j < 10; j++)
{
output[j] = 0;
}
for (int j = 0; j < totalSize; j++)
{
input[j] = 0;
}
output[dImage.Label] = 1;
sbyte[] imageData = dImage.Data;
int k = 66;
for (int j = 0; j < pixelCount; j++)
{
if ((imageData[j] & 0xff) > 0)
{
input[k++] = 255;
}
else
{
k++;
}
if (j % 28 == 27)
{
k += 4;
}
}
DataSetRow row = new DataSetRow(input, output);
dataSet.addRow(row);
}
dataSet.setColumnName(1024, "0");
dataSet.setColumnName(1025, "1");
dataSet.setColumnName(1026, "2");
dataSet.setColumnName(1027, "3");
dataSet.setColumnName(1028, "4");
dataSet.setColumnName(1029, "5");
dataSet.setColumnName(1030, "6");
dataSet.setColumnName(1031, "7");
dataSet.setColumnName(1032, "8");
dataSet.setColumnName(1033, "9");
return(dataSet);
}
