private void SendBtn_Click(object sender, EventArgs e)
{
//DrawPanel.Invalidate();
Bitmap Scale = new Bitmap(DigitMap, new Size(DigitMap.Width / SCALE_RATIO, DigitMap.Height / SCALE_RATIO));
byte[] Input = new byte[ImgWidth * ImgHeight];
int i = 0;
for (int x = 0; x < ImgWidth; x++)
{
for (int y = 0; y < ImgHeight; y++)
{
byte Value = Scale.GetPixel(y, x).R;
Input[i] = (byte)(255 - Value);
i++;
}
}
NN_Digit InputDigit = new NN_Digit();
InputDigit.Image = Input;
InputDigit.Label = 10;
DisplayDigits = new NN_Digit[] { InputDigit };
DigitIndex = 0;
Refresh();
}
public static void ShuffleArray(NN_Digit[] Digits)
{
Random Rand = new Random();
for (int i = Digits.Length - 1; i > 0; i--)
{
int j = Rand.Next(i);
NN_Digit temp = Digits[i];
Digits[i] = Digits[j];
Digits[j] = temp;
}
}
private static NN_Digit[] LoadData()
{
NN_Digit[] Digits = null;
OpenFileDialog OpenFile = new OpenFileDialog();
if (OpenFile.ShowDialog() == DialogResult.OK)
{
FileStream Labels = (FileStream)OpenFile.OpenFile();
//Reads in the header information for labels file
byte[] bMagic = new byte[4];
byte[] bLength = new byte[4];
Labels.Read(bMagic, 0, bMagic.Length);
Labels.Read(bLength, 0, bLength.Length);
Int32[] MagicNum = new Int32[1];
Int32[] NumDigits = new Int32[1];
Buffer.BlockCopy(bMagic.Reverse().ToArray(), 0, MagicNum, 0, 4);
Buffer.BlockCopy(bLength.Reverse().ToArray(), 0, NumDigits, 0, 4);
//Initializes Digit Array
Digits = new NN_Digit[NumDigits[0]];
//Assigns the labels to each Digit
for (int i = 0; i < NumDigits[0]; i++)
{
Digits[i].Label = (byte)Labels.ReadByte();
}
Labels.Close();
}
//Maybe add null check for digits before reading image data
if (OpenFile.ShowDialog() == DialogResult.OK)
{
FileStream Images = (FileStream)OpenFile.OpenFile();
//Reads in header info for Images
byte[] bMagic = new byte[4];
byte[] bLength = new byte[4];
byte[] bRows = new byte[4];
byte[] bColumns = new byte[4];
Images.Read(bMagic, 0, bMagic.Length);
Images.Read(bLength, 0, bLength.Length);
Images.Read(bRows, 0, bRows.Length);
Images.Read(bColumns, 0, bColumns.Length);
Int32[] MagicNum = new Int32[1];
Int32[] NumDigits = new Int32[1];
Int32[] Rows = new Int32[1];
Int32[] Columns = new Int32[1];
Buffer.BlockCopy(bMagic.Reverse().ToArray(), 0, MagicNum, 0, 4);
Buffer.BlockCopy(bLength.Reverse().ToArray(), 0, NumDigits, 0, 4);
Buffer.BlockCopy(bRows.Reverse().ToArray(), 0, Rows, 0, 4);
Buffer.BlockCopy(bColumns.Reverse().ToArray(), 0, Columns, 0, 4);
//Initializes dimensions of the images
ImgWidth = Columns[0];
ImgHeight = Rows[0];
int ImageSize = Rows[0] * Columns[0];
//Assigns image to each Digit
for (int i = 0; i < NumDigits[0]; i++)
{
Digits[i].Image = new byte[ImageSize];
Images.Read(Digits[i].Image, 0, ImageSize);
}
Images.Close();
}
return(Digits);
}
