private static int[] getLeftTop(HSV[,] colors, Dictionary <int, HSV[, ]> colorDict)
{
double score = 1e9;
int ax = 0, ay = 0;
for (int offsetX = -MARGIN; offsetX < 2 * MARGIN; offsetX++)
{
for (int offsetY = -MARGIN; offsetY < 2 * MARGIN; offsetY++)
{
double tmpScore = 1e9;
foreach (HSV[,] value in colorDict.Values)
{
double s = 0;
for (int x = MARGIN; x < 32 - MARGIN; x++)
{
for (int y = MARGIN; y < 32 - MARGIN; y++)
{
// s += Math.Abs(value[x, y] - grays[x + offsetX, y + offsetY]);
try
{
s += HSV.getDistance(value[x, y], colors[x + offsetX, y + offsetY]);
}
catch (Exception)
{
}
}
}
if (tmpScore > s)
{
tmpScore = s;
}
}
if (score > tmpScore)
{
score = tmpScore;
ax = offsetX; ay = offsetY;
}
}
}
return(new int[] { ax, ay });
}
public static string calculate(Bitmap bitmap, Dictionary <int, HSV[, ]> colorDict)
{
int width = (bitmap.Width + 16) / 32, height = (bitmap.Height + 16) / 32;
// int[,] grays = bitmapToGray(bitmap);
HSV[,] colors = new HSV[bitmap.Width, bitmap.Height];
for (int i = 0; i < bitmap.Width; i++)
{
for (int j = 0; j < bitmap.Height; j++)
{
colors[i, j] = new HSV(bitmap.GetPixel(i, j));
}
}
int[,] ans = new int[width, height];
int[] offset = getLeftTop(colors, colorDict);
int offsetX = offset[0], offsetY = offset[1];
// calculate
for (int i = 0; i < width; i++)
{
for (int j = 0; j < height; j++)
{
double t = 1e9;
int v = 0;
foreach (int id in colorDict.Keys)
{
// Bitmap value = dict[id];
HSV[,] value = colorDict[id];
double s = 0;
for (int x = MARGIN; x < 32 - MARGIN; x++)
{
for (int y = MARGIN; y < 32 - MARGIN; y++)
{
try
{
s += HSV.getDistance(value[x, y], colors[32 * j + x + offsetX, 32 * i + y + offsetY]);
}
catch (Exception) { }
}
}
if (t > s)
{
t = s;
v = id;
}
}
ans[i, j] = v;
}
}
StringBuilder builder = new StringBuilder();
for (int i = 0; i < width; i++)
{
for (int j = 0; j < height; j++)
{
builder.Append(ans[i, j]);
if (j != height - 1)
{
builder.Append('\t');
}
else
{
builder.Append("\r\n");
}
}
}
// text = builder.ToString();
// textBox1.Text = text;
// button2_Click(null, null);
return(builder.ToString());
}
