public static List <LabelledImage> loadData(string pixelFile, string labelFile)
{
FileStream ifsPixels = new FileStream(pixelFile, FileMode.Open);
FileStream ifsLabels = new FileStream(labelFile, FileMode.Open);
BinaryReader brImages = new BinaryReader(ifsPixels);
BinaryReader brLabels = new BinaryReader(ifsLabels);
int magic1 = brImages.ReadInt32(); // stored as big endian
magic1 = ReverseBytes(magic1); // convert to Intel format
int imageCount = brImages.ReadInt32();
imageCount = ReverseBytes(imageCount);
int numRows = brImages.ReadInt32();
numRows = ReverseBytes(numRows);
int numCols = brImages.ReadInt32();
numCols = ReverseBytes(numCols);
int magic2 = brLabels.ReadInt32();
magic2 = ReverseBytes(magic2);
int numLabels = brLabels.ReadInt32();
numLabels = ReverseBytes(numLabels);
List <LabelledImage> db = new List <LabelledImage>();
for (int cnt = 0; cnt < 1000 /*imageCount*/; cnt++)
{
LabelledImage img = new LabelledImage();
img.image = new System.Drawing.Bitmap(numRows, numCols, System.Drawing.Imaging.PixelFormat.Format32bppRgb);
for (int i = 0; i < numCols; i++)
{
for (int j = 0; j < numRows; j++)
{
int bt = brImages.ReadByte();
img.image.SetPixel(j, i, Color.FromArgb(bt, bt, bt));
}
}
//using (var ms = new MemoryStream(brImages.ReadBytes(numRows*numCols)))
//{
// img.image = new Bitmap(ms);
//}
byte lbl = brLabels.ReadByte(); // get the label
RecursiveLabel label = new RecursiveLabel();
label.label = "Label_" + (int)lbl;
label.box = new Rectangle(0, 0, numCols, numRows);
img.labels.Add(label);
db.Add(img);
}
brImages.Close();
brLabels.Close();
return(db);
}
private void button1_Click(object sender, EventArgs e)
{
if (folderBrowserDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
workingFolder = folderBrowserDialog1.SelectedPath;
foreach (string file in System.IO.Directory.EnumerateFiles(workingFolder, "*.png"))
{
LabelledImage img = new LabelledImage();
img.image = (Bitmap)Image.FromFile(@file, true);
trainingSet.Add(img);
}
networkThread.Start();
}
}
