private async Task HashCardAsync(SfCard card)
{
if (card.promo == true)
{
if (card.promo_types != null && card.promo_types.Contains("datestamped"))
{
return;
}
}
var reference = referenceCards.SingleOrDefault(c => c.sf_id == card.id);
if (reference == null)
{
var image = Path.Combine("Images", card.id + ".jpg");
if (!File.Exists(image))
{
var client = new HttpClientDownloadWithProgress(card.image_uris.large, image);
client.ProgressChanged += (long?totalFileSize, long totalBytesDownloaded, double?progressPercentage) =>
{
status($"Downloading {card.id}: {card.name} ({card.set}) ... {totalBytesDownloaded}...");
};
await client.StartDownload();
}
ulong hash = 0;
Phash.ph_dct_imagehash(image, ref hash);
var row = sql.InsertCard(card.name, hash.ToString(), card.set, card.type_line, card.mana_cost, card.rarity, card.id);
using (DataTable Reader = sql.dbResult($"SELECT * FROM cards WHERE id = {row}"))
referenceCards.Add(new ReferenceCard(Reader.Rows[0]));
}
}
public void UpdateCard(ReferenceCard card)
{
var directory = Path.Combine(refCardDir, (string)card.dataRow["Set"]);
if (!Directory.Exists(directory))
{
Directory.CreateDirectory(directory);
}
var image = Path.Combine(directory, card.CollectorNumber + ".jpg");
if (!File.Exists(image))
{
}
Phash.ph_dct_imagehash(image, ref card.pHash);
sql.dbNone("UPDATE cards SET pHash=" + card.pHash.ToString() + " WHERE id=" + card.Id);
}
private void matchCard()
{
var cardTempId = 0;
foreach (MagicCard card in magicCards)
{
cardTempId++;
// 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.cardArtBitmap.Save("tempCard" + cardTempId + ".jpg", ImageFormat.Jpeg);
// Calculate art bitmap hash
UInt64 cardHash = 0;
Phash.ph_dct_imagehash("tempCard" + cardTempId + ".jpg", ref cardHash);
var lowestHamming = int.MaxValue;
ReferenceCard bestMatch = null;
foreach (ReferenceCard referenceCard in referenceCards)
{
int hamming = Phash.HammingDistance(referenceCard.pHash, cardHash);
if (hamming < lowestHamming)
{
lowestHamming = hamming;
bestMatch = referenceCard;
}
}
if (bestMatch != null)
{
card.referenceCard = bestMatch;
card.hammingValue = lowestHamming;
//Debug.WriteLine("Highest Similarity: " + bestMatch.name + " ID: " + bestMatch.cardId.ToString());
Graphics g = Graphics.FromImage(cameraBitmap);
var font = new Font("Tahoma", 25);
g.DrawString(bestMatch.Name, font, Brushes.Black, new PointF(card.corners[0].X - 29, card.corners[0].Y - 39));
g.DrawString(bestMatch.Name, font, Brushes.Yellow, new PointF(card.corners[0].X - 30, card.corners[0].Y - 40));
g.Dispose();
}
}
}