private void BtnLaunchResultsViewer_Click(object sender, RoutedEventArgs e)
{
Main.SetStatus(0, "");
if (System.IO.File.Exists(ViewModel.SampleImage) == false)
{
Main.SetStatus(0, "Please specify a sample image file");
return;
}
OcrDemo.UI.Lib.OcrResults win = new UI.Lib.OcrResults();
Contracts.entity.TextExtractionResults lastOcrResults = new Contracts.entity.TextExtractionResults
{
Blocks = new Contracts.entity.TextBlock[]
{
new Contracts.entity.TextBlock
{
Text = "hello",
X1 = 100, X2 = 150,
Y1 = 100, Y2 = 150
},
new Contracts.entity.TextBlock
{
Text = "hello 2",
X1 = 200, X2 = 250,
Y1 = 200, Y2 = 250
}
}
};
var bytes = System.IO.File.ReadAllBytes(ViewModel.SampleImage);
win.RenderImageWithOverlay(bytes, lastOcrResults);
win.Show();
ViewModel.SaveSettings();
}
private void RenderImage(byte[] raw, TextExtractionResults lastOcrResults)
{
Contracts.entity.TextExtractionResults ocr = null;
if (lastOcrResults == null)
{
ctlStatusPanel0.Text = $"Found {lastOcrResults.Blocks.Length} text objects";
//Create an empty object if none was specified
ocr = new Contracts.entity.TextExtractionResults
{
Blocks = new Contracts.entity.TextBlock[]
{
}
};
}
else
{
ocr = lastOcrResults;
}
System.Drawing.Pen penBlock = new System.Drawing.Pen(System.Drawing.Color.Black);
System.Drawing.Pen penSentence = new System.Drawing.Pen(System.Drawing.Color.Orange, 3);
System.Drawing.Pen penPara = new System.Drawing.Pen(System.Drawing.Color.Blue, 3);
System.Drawing.Brush b = new System.Drawing.SolidBrush(
System.Drawing.Color.FromArgb(100, System.Drawing.Color.Yellow));
using (var memStm = new System.IO.MemoryStream(raw))
{
var imge = System.Drawing.Image.FromStream(memStm);
_picBox.Image = imge;
using (var g = System.Drawing.Graphics.FromImage(imge))
{
foreach (var box in ocr.Blocks)
{
//var pts = new System.Drawing.Point[]
//{
// new System.Drawing.Point((int)box.X1,(int)box.Y1),
// new System.Drawing.Point((int)box.X2,(int)box.Y1),
// new System.Drawing.Point((int)box.X2,(int)box.Y2),
// new System.Drawing.Point((int)box.X1,(int)box.Y2),
// new System.Drawing.Point((int)box.X1,(int)box.Y1)
//};
//g.DrawLines(pen,pts);
int xUpperLeft = (int)Math.Min(box.X1, box.X2);
int yUpperLeft = (int)Math.Min(box.Y1, box.Y2);
float width = (float)Math.Abs(box.X1 - box.X2);
float ht = (float)Math.Abs(box.Y1 - box.Y2);
g.DrawRectangle(penBlock, xUpperLeft, yUpperLeft, width, ht);
g.FillRectangle(b, xUpperLeft, yUpperLeft, width, ht);
}
foreach (var sentence in ocr.Sentences)
{
g.DrawLine(
penSentence,
sentence.Rectangle.X, sentence.Rectangle.Bottom,
sentence.Rectangle.Right, sentence.Rectangle.Bottom);
}
foreach (var para in ocr.Paragraphs)
{
g.DrawRectangle(
penPara,
para.Rectangle.Left, para.Rectangle.Top,
para.Rectangle.Width, para.Rectangle.Height);
}
}
}
}
public void RenderImageWithOverlay(byte[] raw, Contracts.entity.TextExtractionResults lastOcrResults)
{
RenderImage(raw, lastOcrResults);
RenderJson(lastOcrResults);
}
