public Bitmap GetProcessedImage(bool useTransparency, out int activePixel)
{
Bitmap img = OCRImage.Clone(GetBoundingBox(), PixelFormat.Format32bppArgb);
double hexheight = OCRRadius * (Math.Sin(MathExt.ToRadians(60)) / Math.Sin(MathExt.ToRadians(90)));
activePixel = 0;
BitmapData srcData = img.LockBits(new Rectangle(0, 0, img.Width, img.Height), ImageLockMode.ReadWrite, PixelFormat.Format32bppArgb);
IntPtr Scan0 = srcData.Scan0;
int stride = srcData.Stride;
unsafe
{
byte *p = (byte *)(void *)Scan0;
for (int x = 0; x < img.Width; x++)
{
for (int y = 0; y < img.Height; y++)
{
int idx = (y * stride) + x * 4;
double px = Math.Abs(x - img.Width / 2);
double py = Math.Abs(y - img.Height / 2);
double pd = Math.Sqrt(px * px + py * py);
if (py < hexheight && py + 2 * (px - OCRRadius) < 0)
{
byte repl_R = 255;
byte repl_G = 255;
byte repl_B = 255;
byte repl_A = (byte)(useTransparency ? 0 : 255);
switch (Type)
{
case HexagonType.HIDDEN:
// TRANSPARENT
break;
case HexagonType.ACTIVE:
{
double s_value = ColorExt.GetSaturation(p[idx + 2], p[idx + 1], p[idx + 0]);
if (s_value >= 80 || pd > (OCRHeight - 1))
{
// TRANSPARENT
}
else
{
activePixel++;
repl_R = (byte)(255 - (p[idx + 2] + p[idx + 1] + p[idx + 0]) / 3);
repl_G = (byte)(255 - (p[idx + 2] + p[idx + 1] + p[idx + 0]) / 3);
repl_B = (byte)(255 - (p[idx + 2] + p[idx + 1] + p[idx + 0]) / 3);
repl_A = 255;
}
}
break;
case HexagonType.INACTIVE:
{
int grayness = (p[idx + 2] + p[idx + 1] + p[idx + 0]) / 3;
if (grayness < 128 || pd > (OCRHeight - 1))
{
// TRANSPARENT
}
else
{
activePixel++;
repl_R = (byte)(255 - (p[idx + 2] + p[idx + 1] + p[idx + 0]) / 3);
repl_G = (byte)(255 - (p[idx + 2] + p[idx + 1] + p[idx + 0]) / 3);
repl_B = (byte)(255 - (p[idx + 2] + p[idx + 1] + p[idx + 0]) / 3);
repl_A = 255;
}
}
break;
case HexagonType.NOCELL:
{
double c_distance = ColorExt.GetColorDistance(p[idx + 2], p[idx + 1], p[idx + 0], COLOR_CELL_NOCELL);
double hsv_value = ColorExt.GetValue(p[idx + 2], p[idx + 1], p[idx + 0]);
if (c_distance < 32 || hsv_value > 75)
{
// TRANSPARENT
}
else
{
activePixel++;
repl_R = (byte)((p[idx + 2] + p[idx + 1] + p[idx + 0]) / 3);
repl_G = (byte)((p[idx + 2] + p[idx + 1] + p[idx + 0]) / 3);
repl_B = (byte)((p[idx + 2] + p[idx + 1] + p[idx + 0]) / 3);
repl_A = 255;
}
}
break;
default:
case HexagonType.UNKNOWN:
// TRANSPARENT
break;
}
p[idx + 0] = repl_B;
p[idx + 1] = repl_G;
p[idx + 2] = repl_R;
p[idx + 3] = repl_A;
}
else
{
p[idx + 0] = 255;
p[idx + 1] = 255;
p[idx + 2] = 255;
p[idx + 3] = (byte)(useTransparency ? 0 : 255);
}
}
}
}
img.UnlockBits(srcData);
return(img);
}