private bool ProcessIteration()
{
if (Best.Generation == 0)
{
Best = new GARepresentation(WorkingImg.GetBitmap().Width, WorkingImg.GetBitmap().Height);
SeedRepresentation(Best);
}
GARepresentation nextgen = Best.Duplicate();
nextgen.Mutate(Entropy, Properties);
nextgen.DrawToFastBitmap(WorkingImg);
double nextcomp = FastBitmap.UltraCompare(Img, WorkingImg);
if ((nextcomp < BestComparison) || ((nextcomp == BestComparison) && (nextgen.Shapes.Count < Best.Shapes.Count)))
{
Best = nextgen;
BestComparison = nextcomp;
Best.Generation++;
return(true);
}
return(false);
}
public void ComputeBackground(FastBitmap source)
{
ColourHistogram ch = new ColourHistogram(source.GetBitmap());
BackgroundColour = ch.MostFrequent();
ch.Dispose();
}
public void Load()
{
FileStream fs = new FileStream(Filename, FileMode.Open, FileAccess.Read);
try
{
BinaryReader br = new BinaryReader(fs);
string header = br.ReadString();
if (header == "GAVECTORPROJECT")
{
byte major = br.ReadByte();
byte minor = br.ReadByte();
if ((major < VERSIONMAJOR) || ((major == VERSIONMAJOR) && (minor <= VERSIONMINOR)))
{
GZipStream gz = new GZipStream(fs, CompressionMode.Decompress);
br = new BinaryReader(gz);
//Load The Image to a MemoryStream
float resx = br.ReadSingle();
float resy = br.ReadSingle();
int bmlength = br.ReadInt32();
byte[] buffer = br.ReadBytes(bmlength);
MemoryStream ms = new MemoryStream(buffer);
Bitmap bt = new Bitmap(ms);
bt.SetResolution(resx, resy);
ms.Close();
buffer = null;
// Draw the Bitmap onto a 24bpp canvas
SourceImage = new FastBitmap(bt.Width, bt.Height, PixelFormat.Format24bppRgb);
Graphics gp = Graphics.FromImage(SourceImage.GetBitmap());
gp.DrawImage(bt, PointF.Empty);
gp.Dispose();
Properties = new GAProjectProperties(br);
BestYet = new GARepresentation(br);
BestComparison = br.ReadDouble();
}
else
{
throw new Exception("Version incorrect, this version " + VERSIONMAJOR.ToString() + "." + VERSIONMINOR.ToString() + ", file version " + major.ToString() + "." + minor.ToString());
}
}
else
{
throw new Exception("Not a GAVector Project File");
}
}
catch (IOException)
{
throw new Exception("File is Corrupt");
}
finally
{
fs.Close();
}
}
public unsafe void DrawToFastBitmap(FastBitmap bitmap)
{
Graphics gp = Graphics.FromImage(bitmap.GetBitmap());
gp.Clear(BackgroundColour);
Draw(new GdiGraphics(gp));
gp.Dispose();
}
private void DisplayImageBitmap(FastBitmap imagebitmap)
{
lock (imagebitmap)
{
displayimagebitmap = (Bitmap)imagebitmap.GetBitmap().Clone();
}
changed = true;
}
private void SeedRepresentation(GARepresentation rep)
{
if (Properties.BackgroundColorFromHistogram)
{
rep.ComputeBackground(Img);
}
switch (Properties.Seeding)
{
case GASeeding.RandomSeed:
rep.GenericSeed(Entropy, Properties);
break;
case GASeeding.MatrixSeed:
rep.MatrixSeed(Img.GetBitmap(), Properties);
break;
}
}
public void Save()
{
FileStream fs = new FileStream(Filename, FileMode.Create, FileAccess.Write);
// Header, Version
BinaryWriter bw = new BinaryWriter(fs);
bw.Write("GAVECTORPROJECT");
bw.Write((byte)VERSIONMAJOR);
bw.Write((byte)VERSIONMINOR);
bw.Dispose();
//Compressed Contents
GZipStream gz = new GZipStream(fs, CompressionMode.Compress);
bw = new BinaryWriter(gz);
//Bitmap & Resolution
Bitmap b = SourceImage.GetBitmap();
bw.Write((float)b.HorizontalResolution);
bw.Write((float)b.VerticalResolution);
MemoryStream ms = new MemoryStream();
b.Save(ms, ImageFormat.Tiff);
bw.Write((int)ms.Length);
bw.Flush();
ms.WriteTo(gz);
ms.Close();
bw.Flush();
Properties.WriteBinary(bw);
BestYet.WriteBinary(bw);
bw.Write(BestComparison);
bw.Flush();
Changed = false;
}
