/// <summary>
/// Detects and recognizes cards from source image
/// </summary>
/// <param name="source">Source image to be scanned</param>
/// <returns>Recognized Cards</returns>
public CardCollection Recognize(Bitmap source)
{
CardCollection collection = new CardCollection(); //Collection that will hold cards
Bitmap temp = source.Clone() as Bitmap; //Clone image to keep original image
FiltersSequence seq = new FiltersSequence();
seq.Add(Grayscale.CommonAlgorithms.BT709); //First add grayScaling filter
seq.Add(new OtsuThreshold()); //Then add binarization(thresholding) filter
temp = seq.Apply(source); // Apply filters on source image
//Extract blobs from image whose size width and height larger than 150
BlobCounter extractor = new BlobCounter();
extractor.FilterBlobs = true;
extractor.MinWidth = extractor.MinHeight = 150;
extractor.MaxWidth = extractor.MaxHeight = 350;
extractor.ProcessImage(temp);
//Will be used transform(extract) cards on source image
QuadrilateralTransformation quadTransformer = new QuadrilateralTransformation();
//Will be used resize(scaling) cards
ResizeBilinear resizer = new ResizeBilinear(CardWidth, CardHeight);
foreach (Blob blob in extractor.GetObjectsInformation())
{
//Get Edge points of card
List<IntPoint> edgePoints = extractor.GetBlobsEdgePoints(blob);
//Calculate/Find corners of card on source image from edge points
List<IntPoint> corners = PointsCloud.FindQuadrilateralCorners(edgePoints);
quadTransformer.SourceQuadrilateral = corners; //Set corners for transforming card
quadTransformer.AutomaticSizeCalculaton = true;
Bitmap cardImg = quadTransformer.Apply(source); //Extract(transform) card image
if (cardImg.Width > cardImg.Height) //If card is positioned horizontally
cardImg.RotateFlip(RotateFlipType.Rotate90FlipNone); //Rotate
cardImg = resizer.Apply(cardImg); //Normalize card size
Card card = new Card(cardImg, corners.ToArray()); //Create Card Object
bool faceCard = IsFaceCard(cardImg); //Determine type of card(face or not)
ResizeBicubic res;
seq.Clear();
seq.Add(Grayscale.CommonAlgorithms.BT709);
seq.Add(new OtsuThreshold());
Bitmap topLeftSuit = card.GetTopLeftSuitPart();
Bitmap bmp = seq.Apply(topLeftSuit);
bmp = CutWhiteSpaces(bmp);
res = new ResizeBicubic(32, 40);
bmp = res.Apply(bmp);
Bitmap topLeftRank = card.GetTopLeftRankPart();
Bitmap bmp2 = seq.Apply(topLeftRank);
bmp2 = CutWhiteSpaces(bmp2);
seq.Clear();
seq.Add(new OtsuThreshold());
bmp = seq.Apply(bmp);
card.Suit = ScanSuit(bmp);
if (!faceCard)
{
res = new ResizeBicubic(26, 40);
bmp2 = res.Apply(bmp2);
seq.Clear();
seq.Add(new OtsuThreshold());
bmp2 = seq.Apply(bmp2);
card.Rank = ScanRank(bmp2);
}
else
{
res = new ResizeBicubic(32, 40);
bmp2 = res.Apply(bmp2);
seq.Clear();
seq.Add(new OtsuThreshold());
bmp2 = seq.Apply(bmp2);
card.Rank = ScanFaceRank(bmp2);
}
collection.Add(card); //Add card to collection
}
return collection;
}
public Button RecognizeOneButton(Bitmap source, Rectangle rect, string filePath, int id)
{
var seq = new FiltersSequence();
var card = new Button(source); //Create Card Object
card.Rect = rect;
seq.Clear();
seq.Add(Grayscale.CommonAlgorithms.BT709);
seq.Add(new OtsuThreshold());
source = seq.Apply(source);
card.Tip = ScanButtonTip(source); //Scan Rank of non-face card
//if (card.Tip == ButtonTip.NOT_RECOGNIZED)
//{
// if (!string.IsNullOrEmpty(filePath))
// {
// while (File.Exists(filePath + id + ".bmp"))
// id++;
// top.Save(filePath + id + ".bmp", ImageFormat.Bmp);
// }
//}
return card;
}
/// <summary>
/// Detects and recognizes cards from source image
/// </summary>
/// <param name="source">Source image to be scanned</param>
/// <returns>Recognized Cards</returns>
public CardCollection Recognize(Bitmap source, int counter)
{
CardCollection collection = new CardCollection(); //Collection that will hold cards
Bitmap temp = source.Clone() as Bitmap; //Clone image to keep original image
FiltersSequence seq = new FiltersSequence();
seq.Add(Grayscale.CommonAlgorithms.BT709); //First add grayScaling filter
seq.Add(new OtsuThreshold()); //Then add binarization(thresholding) filter
temp = seq.Apply(source); // Apply filters on source image
//Extract blobs from image whose size width and height larger than 150
BlobCounter extractor = new BlobCounter();
extractor.FilterBlobs = true;
extractor.MinWidth = extractor.MinHeight = 150;
extractor.MaxWidth = extractor.MaxHeight = 350;
extractor.ProcessImage(temp);
//Will be used transform(extract) cards on source image
QuadrilateralTransformation quadTransformer = new QuadrilateralTransformation();
//Will be used resize(scaling) cards
ResizeBilinear resizer = new ResizeBilinear(CardWidth, CardHeight);
Blob[] blobs = extractor.GetObjectsInformation();
foreach (Blob blob in blobs)
{
//Get Edge points of card
List<IntPoint> edgePoints = extractor.GetBlobsEdgePoints(blob);
//Calculate/Find corners of card on source image from edge points
List<IntPoint> corners = PointsCloud.FindQuadrilateralCorners(edgePoints);
//foreach (IntPoint ip in corners)
//{
// Console.WriteLine(ip.X+","+ip.Y);
//}
quadTransformer.SourceQuadrilateral = corners; //Set corners for transforming card
quadTransformer.AutomaticSizeCalculaton = true;
Bitmap cardImg = quadTransformer.Apply(source); //Extract(transform) card image
if (cardImg.Width > cardImg.Height) //If card is positioned horizontally
cardImg.RotateFlip(RotateFlipType.Rotate90FlipNone); //Rotate
cardImg = resizer.Apply(cardImg); //Normalize card size
Card card = new Card(cardImg, corners.ToArray()); //Create Card Object
char color = ScanColor(card.GetTopRightPart()); //Scan color
bool faceCard = IsFaceCard(cardImg); //Determine type of card(face or not)
if (!faceCard)
{
card.Suit = ScanSuit(cardImg, color); //Scan Suit of non-face card
card.Rank = ScanRank(cardImg); //Scan Rank of non-face card
}
else
{
Bitmap topRight = card.GetTopRightPart();
seq.Clear();
seq.Add(Grayscale.CommonAlgorithms.BT709);
seq.Add(new BradleyLocalThresholding());
topRight = seq.Apply(topRight);
BlobsFiltering bFilter = new BlobsFiltering(5, 5, 150, 150);
bFilter.ApplyInPlace(topRight); //Filter blobs that can not be a suit
card.Suit = ScanFaceSuit(topRight, color); //Scan suit of face card
card.Rank = ScanFaceRank(topRight); //Scan rank of face card
}
collection.Add(card); //Add card to collection
}
return collection;
}
/// <summary>
/// Detects and recognizes cards from source image
/// </summary>
/// <param name="source">Source image to be scanned</param>
/// <returns>Recognized Cards</returns>
public CardCollection Recognize(Bitmap source, string filePath, int id,
int minSize, Rectangle suitRect, Rectangle rankRect
)
{
CardCollection collection = new CardCollection(); //Collection that will hold cards
Bitmap temp = source.Clone() as Bitmap; //Clone image to keep original image
FiltersSequence seq = new FiltersSequence();
seq.Add(Grayscale.CommonAlgorithms.BT709); //First add grayScaling filter
seq.Add(new OtsuThreshold()); //Then add binarization(thresholding) filter
temp = seq.Apply(source); // Apply filters on source image
//if (!string.IsNullOrEmpty(fileName))
//{
// temp.Save(fileName, ImageFormat.Bmp);
//}
//Extract blobs from image whose size width and height larger than 150
BlobCounter extractor = new BlobCounter();
extractor.FilterBlobs = true;
extractor.MinWidth = extractor.MinHeight = minSize;//TODO card size
//extractor.MaxWidth = extractor.MaxHeight = 70;//TODO card size
extractor.ProcessImage(temp);
//Will be used transform(extract) cards on source image
//QuadrilateralTransformation quadTransformer = new QuadrilateralTransformation();
foreach (Blob blob in extractor.GetObjectsInformation())
{
var cardImg = source.Clone(blob.Rectangle, PixelFormat.DontCare);
Card card = new Card(cardImg); //Create Card Object
Bitmap suitBmp = card.GetPart(suitRect);
char color = ScanColor(suitBmp); //Scan color
seq.Clear();
seq.Add(Grayscale.CommonAlgorithms.BT709);
seq.Add(new OtsuThreshold());
suitBmp = seq.Apply(suitBmp);
card.Suit = ScanSuit(suitBmp, color); //Scan suit of face card
Bitmap rankBmp = card.GetPart(rankRect);
seq.Clear();
seq.Add(Grayscale.CommonAlgorithms.BT709);
seq.Add(new OtsuThreshold());
rankBmp = seq.Apply(rankBmp);
//var ext = new BlobsFiltering(0, 0, 40, 40);
//ext.ApplyInPlace(rankBmp);
card.Rank = ScanRank(rankBmp); //Scan Rank of non-face card
//if (card.Rank == Rank.NOT_RECOGNIZED)
//{
// if (!string.IsNullOrEmpty(filePath))
// {
// while (File.Exists(filePath + id + ".bmp"))
// id++;
// top.Save(filePath + id + ".bmp", ImageFormat.Bmp);
// }
//}
if(card.Rank != Rank.NOT_RECOGNIZED && card.Suit != Suit.NOT_RECOGNIZED)
collection.Add(card); //Add card to collection
}
collection.SortByRank();
return collection;
}
