internal static Bitmap[] generateColourMaps(Bitmap pic, List <Color> cols)
{
Bitmap[] CMaps = new Bitmap[cols.Count];
FormLoadingcs frmldgn = new FormLoadingcs();
int count = -1;
for (int i = 0; i < CMaps.Length; i++)
{
if (i < compcol.Count - 1)
{
frmldgn.Text = "Generating - " + coloursInv[compcol[i]] + " (" + (i + 1) + "/" + compcol.Count + ")";
}
else
{
frmldgn.Text = "Generating - White" + " (" + (i + 1) + "/" + compcol.Count + ")";
}
frmldgn.Show();
Bitmap colpic = new Bitmap(pic.Width, pic.Height, PixelFormat.Format24bppRgb);
for (int y = 0; y < pic.Height; y++)
{
count++;
for (int x = 0; x < pic.Width; x++)
{
Color col1 = pic.GetPixel(x, y);
if (col1 == compcol[i])
{
colpic.SetPixel(x, y, Color.FromArgb(0, 0, 0));
}
else
{
colpic.SetPixel(x, y, Color.FromArgb(255, 255, 255));
}
}
frmldgn.setProgress((int)(((float)count / (float)pic.Height * 100f) / compcol.Count));
}
CMaps[i] = colpic;
}
frmldgn.Close();
return(CMaps);
}
internal static Bitmap[,] generatePatternMaps(Bitmap[] ColMaps)
{
//create a 2 dimensional array
Bitmap[,] Patterns = new Bitmap[ColMaps.Length - 1, 2];
//take colour image
FormLoadingcs frmldgn = new FormLoadingcs();
patternProgressCount = -1;
frmldgn.Show();
int counter = 0;
for (int i = 0; i < ColMaps.Length - 1; i++)
{
counter++;
Bitmap bmp = ColMaps[i];
//create 2 bitmaps, one for the outline and the other for the filling
Bitmap Outline = new Bitmap(bmp.Width, bmp.Height, PixelFormat.Format24bppRgb);
Bitmap Filling = new Bitmap(bmp.Width, bmp.Height, PixelFormat.Format24bppRgb);
if (i < compcol.Count - 1)
{
frmldgn.Text = "Generating Outline - " + coloursInv[compcol[i]] + " (" + (counter) + "/" + ((compcol.Count - 1) * 2) + ")";
}
//call an outlining method on the first bitmap, specify colour
Outline = findOutline(Color.FromArgb(255, 0, 0), bmp, frmldgn);
//call a filling method on the second bitmap, specify colour
counter++;
if (i < compcol.Count - 1)
{
frmldgn.Text = "Generating Filling - " + coloursInv[compcol[i]] + " (" + (counter) + "/" + ((compcol.Count - 1) * 2) + ")";
}
Filling = findFilling(Color.FromArgb(0, 255, 0), Outline, bmp, frmldgn);
//add the 2 bitmaps to the Array
Patterns[i, 0] = Outline;
Patterns[i, 1] = Filling;
}
frmldgn.Close();
return(Patterns);
}
internal static Bitmap dither(Bitmap src1, int width, int height, List <Color> Compcol)
{
Bitmap diffBM = new Bitmap(width, height, PixelFormat.Format24bppRgb);
FormLoadingcs frmld = new FormLoadingcs(false, "Dithering");
frmld.Show();
int progress = 0;
if (Compcol.Count > 2)
{
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
Color col1 = src1.GetPixel(x, y);
Color newcol = Color.FromArgb(255, 255, 255);
int coldif = 256;
foreach (Color col in Compcol)
{
int r = 0, g = 0, b = 0;
r = Math.Abs(col1.R - col.R);
g = Math.Abs(col1.G - col.G);
b = Math.Abs(col1.B - col.B);
int dif = ((r + g + b) / 3);
if (dif < coldif)
{
coldif = dif;
newcol = col;
}
}
diffBM.SetPixel(x, y, newcol);
}
progress = (int)((float)y / (float)height * 100);
frmld.setProgress(progress);
}
}
else
{
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
Color col1 = src1.GetPixel(x, y);
Color newcol = Color.FromArgb(255, 255, 255);
Color col = compcol[0];
int Avg = (col1.R + col1.G + col1.B) / 3;
if (Avg > 127)
{
newcol = Color.FromArgb(255, 255, 255);
}
else
{
newcol = col;
}
diffBM.SetPixel(x, y, newcol);
}
progress = (int)((float)y / (float)height * 100);
frmld.setProgress(progress);
}
}
frmld.Close();
return(diffBM);
}
