private static Bitmap MakeBitmapFromMnist(MnistImage mnsIm, int coof)
{
Bitmap bmI = new Bitmap(mnsIm.width * coof, mnsIm.height * coof);
Graphics gr = Graphics.FromImage(bmI);
for (int i = 0; i < mnsIm.width; i++)
{
for (int j = 0; j < mnsIm.height; j++)
{
int pixelColor = 255 - mnsIm.pixels[i][j];
System.Drawing.Color c = System.Drawing.Color.FromArgb(pixelColor, pixelColor, pixelColor);
SolidBrush sb = new SolidBrush(c);
gr.FillRectangle(sb, j * coof, i * coof, coof, coof);
}
}
return(bmI);
}
private static List <MnistImage> ReadMnistBase(string imageFilePath, string labelFilePath)
{
List <MnistImage> images = new List <MnistImage>();
System.IO.FileStream fsImage = new System.IO.FileStream(imageFilePath, System.IO.FileMode.Open);
System.IO.FileStream fsLabel = new System.IO.FileStream(labelFilePath, System.IO.FileMode.Open);
System.IO.BinaryReader brImage = new System.IO.BinaryReader(fsImage);
System.IO.BinaryReader brLabel = new System.IO.BinaryReader(fsLabel);
int magic1 = ReverseByte(brImage.ReadInt32());
int imageCount = ReverseByte(brImage.ReadInt32());
int rowsCount = ReverseByte(brImage.ReadInt32());
int colsCount = ReverseByte(brImage.ReadInt32());
int magic2 = ReverseByte(brLabel.ReadInt32());
int labesCount = ReverseByte(brLabel.ReadInt32());
for (int n = 0; n < imageCount; n++)
{
List <List <byte> > bytes = new List <List <byte> >();
for (int i = 0; i < rowsCount; i++)
{
List <byte> col = new List <byte>();
for (int j = 0; j < colsCount; j++)
{
col.Add(brImage.ReadByte());
}
bytes.Add(col);
}
byte label = brLabel.ReadByte();
MnistImage img = new MnistImage(rowsCount, colsCount, bytes, label);
images.Add(img);
}
fsImage.Close();
fsLabel.Close();
brImage.Close();
brLabel.Close();
return(images);
}
private List <double> Recognize(MnistImage img)
{
List <double> kr = new List <double>();
List <double> input = new List <double>();
for (int l = 0; l < img.height; l++)
{
for (int m = 0; m < img.width; m++)
{
if (img.pixels[m][l] > 0)
{
input.Add(1);
}
else
{
input.Add(0);
}
}
}
kr = wb.Res(input);
return(kr);
}
