private static void GetPixelData(Color cValue, ref AsciiImage image)
{
Color[] cTable = cColors.Select(x => Color.FromArgb(x)).ToArray();
char[] rList = new char[] { (char)9617, (char)9618, (char)9619, (char)9608 }; // 1/4, 2/4, 3/4, 4/4
int[] bestHit = new int[] { 0, 0, 4, int.MaxValue }; //ForeColor, BackColor, Symbol, Score
for (int rChar = rList.Length; rChar > 0; rChar--)
{
for (int cFore = 0; cFore < cTable.Length; cFore++)
{
for (int cBack = 0; cBack < cTable.Length; cBack++)
{
int R = (cTable[cFore].R * rChar + cTable[cBack].R * (rList.Length - rChar)) / rList.Length;
int G = (cTable[cFore].G * rChar + cTable[cBack].G * (rList.Length - rChar)) / rList.Length;
int B = (cTable[cFore].B * rChar + cTable[cBack].B * (rList.Length - rChar)) / rList.Length;
int iScore = (cValue.R - R) * (cValue.R - R) + (cValue.G - G) * (cValue.G - G) + (cValue.B - B) * (cValue.B - B);
if (!(rChar > 1 && rChar < 4 && iScore > 50000)) // rule out too weird combinations
{
if (iScore < bestHit[3])
{
bestHit[3] = iScore; //Score
bestHit[0] = cFore; //ForeColor
bestHit[1] = cBack; //BackColor
bestHit[2] = rChar; //Symbol
}
}
}
}
}
image.PixelForegroundColor[image.NextPixel] = (ConsoleColor)bestHit[0];
image.PixelBackgroundColor[image.NextPixel] = (ConsoleColor)bestHit[1];
image.DistanceChar[image.NextPixel] = rList[bestHit[2] - 1];
}
public static AsciiImage BuildAsciiImage(string path)
{
using (Bitmap source = new Bitmap(path, true))
{
int sMax = 45;
decimal percent = Math.Min(decimal.Divide(sMax, source.Width), decimal.Divide(sMax, source.Height));
Size dSize = new Size((int)(source.Width * percent), (int)(source.Height * percent));
Bitmap bmpMax = new Bitmap(source, dSize.Width * 2, dSize.Height);
int size = (dSize.Width * 2) * dSize.Height;
AsciiImage image = new AsciiImage(new Point[size], new ConsoleColor[size], new ConsoleColor[size], new char[size]);
int nextPixel = 0;
int nextX = 0;
for (int i = 0; i < dSize.Height; i++)
{
for (int j = 0; j < dSize.Width; j++)
{
image.NextPixel = nextPixel;
image.Cooridinate[nextPixel] = new Point(nextX, i);
GetPixelData(bmpMax.GetPixel(j * 2, i), ref image);
nextPixel++;
image.NextPixel = nextPixel;
nextX++;
image.Cooridinate[nextPixel] = new Point(nextX, i);
GetPixelData(bmpMax.GetPixel(j * 2 + 1, i), ref image);
nextPixel++;
nextX++;
}
nextX = 0;
//Console.WriteLine();
}
//Console.ResetColor();
return(image);
}
}
