private void loadSourceCards()
{
using (var Reader = ssSql.dbResult("SELECT * FROM cards WHERE pHash != '0'"))
{
foreach (DataRow r in Reader.Rows)
{
var card = new ReferenceCard();
card.cardId = r["id"].ToString();
card.name = r["Name"].ToString();
card.pHash = Convert.ToUInt64(r["pHash"]);
card.dataRow = r;
referenceCards.Add(card);
}
}
}
private void matchCard()
{
//Console.WriteLine("matchCard() called with " + magicCards.Count + " cards detected");
var cardTempId = 0;
foreach (var card in magicCards)
{
cardTempId++;
//ContrastCorrection filter = new ContrastCorrection(15);
//filter.ApplyInPlace(card.cardArtBitmap);
// Write the image to disk to be read by the pHash library.. should really find
// a way to pass a pointer to image data directly
card.cardBitmap.Save("tempCard" + cardTempId + ".jpg", ImageFormat.Jpeg);
// Calculate art bitmap hash
ulong cardHash = 0;
// Phash.ph_dct_imagehash("tempCard" + cardTempId + ".jpg", ref cardHash);
Phash.ph_dct_imagehash(".\\tempCard" + cardTempId + ".jpg", ref cardHash);
var lowestHamming = int.MaxValue;
ReferenceCard bestMatch = null;
foreach (var referenceCard in referenceCards)
{
var hamming = Phash.HammingDistance(referenceCard.pHash, cardHash);
if (hamming < lowestHamming)
{
lowestHamming = hamming;
bestMatch = referenceCard;
}
}
if (bestMatch != null)
{
var g = Graphics.FromImage(cameraBitmap);
g.DrawString(currentMatch, new Font("Tahoma", 25), Brushes.Black,
new PointF(card.corners[0].X - 29, card.corners[0].Y - 39));
g.DrawString(currentMatch, new Font("Tahoma", 25), Brushes.Red,
new PointF(card.corners[0].X - 30, card.corners[0].Y - 40));
g.Dispose();
#if DEBUG
Console.WriteLine("DEBUG: Highest Similarity: " + bestMatch.name + " ID: " + bestMatch.cardId);
#endif
if (bestMatches.ContainsKey(bestMatch.cardId))
{
bestMatches[bestMatch.cardId] += 1;
}
else
{
bestMatches[bestMatch.cardId] = 1;
}
//Console.WriteLine("DEBUG: Checking " + bestMatches[bestMatch.cardId]);
var maxValue = 0;
string bestMatchId = null;
foreach (var match in bestMatches)
{
if (match.Value > maxValue)
{
maxValue = match.Value;
bestMatchId = match.Key;
}
}
if (bestMatchId != bestMatch.cardId)
{
continue;
}
}
if (bestMatch != null)
{
card.referenceCard = bestMatch;
currentMatch = bestMatch.name;
// highly experimental
#if NULL
const string tessDataDir = @".\\tessdata";
using (var engine = new TesseractEngine(tessDataDir, "eng", EngineMode.Default))
using (var image = Pix.LoadFromFile(".\\tempCard" + cardTempId + ".jpg"))
using (var page = engine.Process(image))
{
string text = page.GetText();
Console.WriteLine("DEBUG: Mean confidence: {0}", page.GetMeanConfidence());
Console.WriteLine("DEBUG: " + text);
}
#endif
}
}
}