private void btnRecognize_Click(object sender, EventArgs e)
{
DownSample ds = new DownSample(this.entryImage);
this.downsampled = ds.PerformDownSample(OCRForm.DOWNSAMPLE_WIDTH, OCRForm.DOWNSAMPLE_HEIGHT);
this.sample.Invalidate();
if (this.network == null)
{
MessageBox.Show("I need to be trained first!");
return;
}
int sampleSize = OCRForm.DOWNSAMPLE_HEIGHT * OCRForm.DOWNSAMPLE_WIDTH;
var input = new BasicMLData(sampleSize);
for (int i = 0; i < sampleSize; i++)
{
input[i] = this.downsampled[i] ? 0.5 : -0.5;
}
int best = this.network.Winner(input);
char[] map = MapNeurons();
MessageBox.Show(" " + map[best] + " (Neuron #"
+ best + " fired)", "That Letter Is");
ClearEntry();
}
private void btnSample_Click(object sender, EventArgs e)
{
DownSample ds = new DownSample(this.entryImage);
this.downsampled = ds.PerformDownSample(OCRForm.DOWNSAMPLE_WIDTH, OCRForm.DOWNSAMPLE_HEIGHT);
this.sample.Invalidate();
}
public void ClearEntry()
{
Brush whiteBrush = new SolidBrush(Color.White);
entryGraphics.FillRectangle(whiteBrush, 0, 0, entry.Width, entry.Height);
entry.Invalidate();
DownSample ds = new DownSample(this.entryImage);
this.downsampled = ds.PerformDownSample(OCRForm.DOWNSAMPLE_WIDTH, OCRForm.DOWNSAMPLE_HEIGHT);
this.sample.Invalidate();
}
private void btnAdd_Click(object sender, EventArgs e)
{
DownSample ds = new DownSample(this.entryImage);
this.downsampled = ds.PerformDownSample(OCRForm.DOWNSAMPLE_WIDTH, OCRForm.DOWNSAMPLE_HEIGHT);
this.sample.Invalidate();
String Prompt = "What letter did you just draw.";
String Title = "Input Required";
String Default = "";
Int32 XPos = ((SystemInformation.WorkingArea.Width / 2) - 200);
Int32 YPos = ((SystemInformation.WorkingArea.Height / 2) - 100);
bool valid = false;
for (int i = 0; i < this.downsampled.Length; i++)
{
if (this.downsampled[i])
{
valid = true;
}
}
if (!valid)
{
MessageBox.Show("Please draw a letter before adding it.");
return;
}
String Result = Microsoft.VisualBasic.Interaction.InputBox(Prompt, Title, Default, XPos, YPos);
if (Result != null)
{
Result = Result.ToUpper();
if (Result.Length == 0)
{
MessageBox.Show("Please enter a character.");
}
else if (Result.Length > 1)
{
MessageBox.Show("Please enter only a single character.");
}
else if (this.letterData.ContainsKey(Result[0]))
{
MessageBox.Show("That letter is already defined, please delete first.");
}
else
{
this.letters.Items.Add(Result);
this.letterData.Add(Result[0], this.downsampled);
this.ClearEntry();
}
}
}
public void ClearEntry()
{
Brush whiteBrush = new SolidBrush(Color.White);
entryGraphics.FillRectangle(whiteBrush, 0, 0, entry.Width, entry.Height);
entry.Invalidate();
DownSample ds = new DownSample(this.entryImage);
this.downsampled = ds.downSample(OCRForm.DOWNSAMPLE_WIDTH, OCRForm.DOWNSAMPLE_HEIGHT);
this.sample.Invalidate();
}
private void btnSample_Click(object sender, EventArgs e)
{
DownSample ds = new DownSample(this.entryImage);
this.downsampled = ds.downSample(OCRForm.DOWNSAMPLE_WIDTH, OCRForm.DOWNSAMPLE_HEIGHT);
this.sample.Invalidate();
}
private void btnRecognize_Click(object sender, EventArgs e)
{
DownSample ds = new DownSample(this.entryImage);
this.downsampled = ds.downSample(OCRForm.DOWNSAMPLE_WIDTH, OCRForm.DOWNSAMPLE_HEIGHT);
this.sample.Invalidate();
if (this.network == null)
{
MessageBox.Show("I need to be trained first!");
return;
}
int sampleSize = OCRForm.DOWNSAMPLE_HEIGHT * OCRForm.DOWNSAMPLE_WIDTH;
double[] input = new double[sampleSize];
for (int i = 0; i < sampleSize; i++)
{
input[i] = this.downsampled[i] ? 0.5 : -0.5;
}
int best = this.network.Winner(input);
char[] map = mapNeurons();
MessageBox.Show(" " + map[best] + " (Neuron #"
+ best + " fired)", "That Letter Is");
ClearEntry();
}
private void btnAdd_Click(object sender, EventArgs e)
{
DownSample ds = new DownSample(this.entryImage);
this.downsampled = ds.downSample(OCRForm.DOWNSAMPLE_WIDTH, OCRForm.DOWNSAMPLE_HEIGHT);
this.sample.Invalidate();
String Prompt = "What letter did you just draw.";
String Title = "Input Required";
String Default = "";
Int32 XPos = ((SystemInformation.WorkingArea.Width / 2) - 200);
Int32 YPos = ((SystemInformation.WorkingArea.Height / 2) - 100);
bool valid = false;
for (int i = 0; i < this.downsampled.Length; i++)
{
if (this.downsampled[i])
{
valid = true;
}
}
if (!valid)
{
MessageBox.Show("Please draw a letter before adding it.");
return;
}
String Result = Microsoft.VisualBasic.Interaction.InputBox(Prompt, Title, Default, XPos, YPos);
if (Result != null)
{
Result = Result.ToUpper();
if (Result.Length == 0)
{
MessageBox.Show("Please enter a character.");
}
else if (Result.Length > 1)
{
MessageBox.Show("Please enter only a single character.");
}
else if (this.letterData.ContainsKey(Result[0]))
{
MessageBox.Show("That letter is already defined, please delete first.");
}
else
{
this.letters.Items.Add(Result);
this.letterData.Add(Result[0], this.downsampled);
this.ClearEntry();
}
}
}
