// Process image searching for glyphs and highlighting them
public List <ExtractedGlyphData> ProcessImage(Bitmap image)
{
var glyphs = new List <ExtractedGlyphData>();
lock (_sync)
{
_glyphTracker.ImageSize = image.Size;
// get list of recognized glyphs
glyphs.AddRange(_recognizer.FindGlyphs(image));
if (glyphs.Count <= 0)
{
return(glyphs);
}
// visualizing glyphs
var glyphIDs = _glyphTracker.TrackGlyphs(glyphs);
var g = Graphics.FromImage(image);
var i = 0;
// highlight each found glyph
foreach (var glyphData in glyphs)
{
var glyphPoints = (glyphData.RecognizedGlyph == null)
? glyphData.Quadrilateral
: glyphData.RecognizedQuadrilateral;
var pen = new Pen(Color.Red);
// highlight border
g.DrawPolygon(pen, ToPointsArray(glyphPoints));
// prepare glyph's title
var glyphTitle = glyphData.RecognizedGlyph != null
? glyphData.RecognizedGlyph.Name
: string.Format("ID: {0}", glyphIDs[i]);
// show glyph's title
if (!string.IsNullOrEmpty(glyphTitle))
{
// get glyph's center point
IntPoint minXY, maxXY;
PointsCloud.GetBoundingRectangle(glyphPoints, out minXY, out maxXY);
var center = (minXY + maxXY) / 2;
// glyph's name size
var nameSize = g.MeasureString(glyphTitle, _defaultFont);
// paint the name
var brush = new SolidBrush(pen.Color);
g.DrawString(glyphTitle, _defaultFont, brush,
new System.Drawing.Point(center.X - (int)nameSize.Width / 2,
center.Y - (int)nameSize.Height / 2));
brush.Dispose();
}
i++;
pen.Dispose();
}
}
return(glyphs);
}
// Process image searching for glyphs and highlighting them
public List <ExtractedGlyphData> ProcessImage(Bitmap bitmap)
{
List <ExtractedGlyphData> glyphs = new List <ExtractedGlyphData>( );
lock ( sync )
{
glyphTracker.ImageSize = bitmap.Size;
// get list of recognized glyphs
glyphs.AddRange(recognizer.FindGlyphs(bitmap));
List <int> glyphIDs = glyphTracker.TrackGlyphs(glyphs);
if (glyphs.Count > 0)
{
if ((visualizationType == VisualizationType.BorderOnly) ||
(visualizationType == VisualizationType.Name))
{
Graphics g = Graphics.FromImage(bitmap);
int i = 0;
// highlight each found glyph
foreach (ExtractedGlyphData glyphData in glyphs)
{
List <IntPoint> glyphPoints = (glyphData.RecognizedGlyph == null) ?
glyphData.Quadrilateral : glyphData.RecognizedQuadrilateral;
Pen pen = new Pen(((glyphData.RecognizedGlyph == null) || (glyphData.RecognizedGlyph.UserData == null)) ?
Color.Red : ((GlyphVisualizationData)glyphData.RecognizedGlyph.UserData).Color, 3);
// highlight border
g.DrawPolygon(pen, ToPointsArray(glyphPoints));
string glyphTitle = null;
// prepare glyph's title
if ((visualizationType == VisualizationType.Name) && (glyphData.RecognizedGlyph != null))
{
glyphTitle = string.Format("{0}: {1}",
glyphIDs[i], glyphData.RecognizedGlyph.Name);
}
else
{
glyphTitle = string.Format("Tracking ID: {0}", glyphIDs[i]);
}
// show glyph's title
if (!string.IsNullOrEmpty(glyphTitle))
{
// get glyph's center point
IntPoint minXY, maxXY;
PointsCloud.GetBoundingRectangle(glyphPoints, out minXY, out maxXY);
IntPoint center = (minXY + maxXY) / 2;
// glyph's name size
SizeF nameSize = g.MeasureString(glyphTitle, defaultFont);
// paint the name
Brush brush = new SolidBrush(pen.Color);
g.DrawString(glyphTitle, defaultFont, brush,
new System.Drawing.Point(center.X - (int)nameSize.Width / 2, center.Y - (int)nameSize.Height / 2));
brush.Dispose( );
}
i++;
pen.Dispose( );
}
}
else if (visualizationType == VisualizationType.Image)
{
// lock image for further processing
BitmapData bitmapData = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height),
ImageLockMode.ReadWrite, bitmap.PixelFormat);
UnmanagedImage unmanagedImage = new UnmanagedImage(bitmapData);
// highlight each found glyph
foreach (ExtractedGlyphData glyphData in glyphs)
{
if ((glyphData.RecognizedGlyph != null) && (glyphData.RecognizedGlyph.UserData != null))
{
GlyphVisualizationData visualization =
(GlyphVisualizationData)glyphData.RecognizedGlyph.UserData;
if (visualization.ImageName != null)
{
// get image associated with the glyph
Bitmap glyphImage = EmbeddedImageCollection.Instance.GetImage(visualization.ImageName);
if (glyphImage != null)
{
// put glyph's image onto the glyph using quadrilateral transformation
quadrilateralTransformation.SourceImage = glyphImage;
quadrilateralTransformation.DestinationQuadrilateral = glyphData.RecognizedQuadrilateral;
quadrilateralTransformation.ApplyInPlace(unmanagedImage);
}
}
}
}
bitmap.UnlockBits(bitmapData);
}
}
}
return(glyphs);
}