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void CEngine::toLineal2(bool in_bDelay)
{
 int i = 0, j = 255;
 uint uiR, uiG, uiB;
 uint Yarr[256];
 for (int t  = 0; t < 256; t++) {
  Yarr[t] = 0;
 }
 uint  proc;
 QImage imgNew(m_Image.width(), m_Image.height(), QImage::Format_RGB32);
 uint uiPercent, uiQuantum = m_Image.width() * m_Image.height() / 100;
 QRgb rgb = m_Image.pixel(0, 0);
 proc = 5 * uiQuantum;
 uint Ymin = 0.2125 * qRed(rgb) + 0.7154 * qGreen(rgb) + 0.0721 * qBlue(rgb), Ymax, Y; 
 Ymax = Ymin;
 for (uint y = 0; y < m_Image.height(); ++y)
 {
  for (uint x = 0; x < m_Image.width(); ++x)
  {
   QRgb rgb = m_Image.pixel(x, y);
   Y = 0.2125 * qRed(rgb) + 0.7154 * qGreen(rgb) + 0.0721 * qBlue(rgb);
   Yarr[Y]++; 
  }
 }
 uint Summin = 0, Summax = 0;
 while (proc > Summin) {
  Summin += Yarr[i];
  i++;
 }
 Ymin = Yarr[i - 1];
 while (proc > Summax) {
  Summax += Yarr[j];
  j--;
 }
 Ymax = Yarr[j++];
 Y = Ymax - Ymin;
 for (uint y = 0; y < m_Image.height(); ++y)
 {
  for (uint x = 0; x < m_Image.width(); ++x)
  {
   QRgb rgb = m_Image.pixel(x, y);
   uiR = (qRed(rgb) - Ymin) * 255 / Y;
   uiG = (qGreen(rgb) - Ymin) * 255 / Y;
   uiB = (qBlue(rgb) - Ymin)  * 255 / Y;
   if (uiR > 255) {
    uiR = 255;
   }
   if (uiG > 255) {
    uiG = 255;
   }
   if (uiB > 255) {
    uiB = 255;
   }
   QRgb uirgb = qRgb(uiR, uiG, uiB);
   imgNew.setPixel(x, y, uirgb);
   uiPercent = y * m_Image.width() + x;
   if (uiPercent % uiQuantum == 0 && m_fnCallback)
    m_fnCallback(uiPercent / uiQuantum, m_pCallbackExtra);
  }
  if (in_bDelay) Sleep(5); //! only for emulation purposes
 }

 m_Image = imgNew;
 if (m_fnCallback) m_fnCallback(100, m_pCallbackExtra);
}