| public Calibrate ( float _Luminance ) : float | ||
| _Luminance | float | The uncalibrated luminance value |
| return | float | |
/// <summary>
/// Calibrates a raw luminance value
/// </summary>
/// <param name="_xyY">The uncalibrated value</param>
/// <returns>The calibrated reflectance value</returns>
/// <remarks>Typically, you start from a RAW XYZ value that you convert to xyY, pass the Y to this method
/// and replace it into your orignal xyY, convert back to XYZ and voilà!</remarks>
public ImageUtility.float3 Calibrate(ImageUtility.float3 _xyY)
{
if (m_RootNode == null)
{
throw new Exception("Calibration grid hasn't been built: did you provide a valid database path? Does the path contain camera calibration data?");
}
if (m_InterpolatedCalibration == null)
{
throw new Exception("Calibration grid hasn't been prepared for calibration: did you call the PrepareCalibrationFor() method?");
}
float Reflectance = m_InterpolatedCalibration.Calibrate(m_WhiteReflectanceCorrectionFactor * _xyY.z);
_xyY.z = Reflectance;
if (m_DoWhiteBalance)
{
ImageUtility.float3 XYZ = ImageUtility.ColorProfile.xyY2XYZ(_xyY);
XYZ *= m_WhiteBalanceXYZ;
_xyY = ImageUtility.ColorProfile.XYZ2xyY(XYZ);
}
return(_xyY);
}
