/*
* Allocate conversion state structures and make look_up tables for
* the Yr,Yb,Yg <=> r,g,b conversions.
*/
public void Init(TiffDisplay refDisplay, float[] refWhite)
{
range = CIELABTORGB_TABLE_RANGE;
display = refDisplay;
/* Red */
double gamma = 1.0 / display.d_gammaR;
rstep = (display.d_YCR - display.d_Y0R) / range;
for (int i = 0; i <= range; i++)
{
Yr2r[i] = display.d_Vrwr * ((float)Math.Pow((double)i / range, gamma));
}
/* Green */
gamma = 1.0 / display.d_gammaG;
gstep = (display.d_YCR - display.d_Y0R) / range;
for (int i = 0; i <= range; i++)
{
Yg2g[i] = display.d_Vrwg * ((float)Math.Pow((double)i / range, gamma));
}
/* Blue */
gamma = 1.0 / display.d_gammaB;
bstep = (display.d_YCR - display.d_Y0R) / range;
for (int i = 0; i <= range; i++)
{
Yb2b[i] = display.d_Vrwb * ((float)Math.Pow((double)i / range, gamma));
}
/* Init reference white point */
X0 = refWhite[0];
Y0 = refWhite[1];
Z0 = refWhite[2];
}
/*
* Allocate conversion state structures and make look_up tables for
* the Yr,Yb,Yg <=> r,g,b conversions.
*/
public void Init(TiffDisplay refDisplay, float[] refWhite)
{
range = CIELABTORGB_TABLE_RANGE;
display = refDisplay;
/* Red */
double gamma = 1.0 / display.d_gammaR;
rstep = (display.d_YCR - display.d_Y0R) / range;
for (int i = 0; i <= range; i++)
{
Yr2r[i] = display.d_Vrwr * ((float)Math.Pow((double)i / range, gamma));
}
/* Green */
gamma = 1.0 / display.d_gammaG;
gstep = (display.d_YCR - display.d_Y0R) / range;
for (int i = 0; i <= range; i++)
{
Yg2g[i] = display.d_Vrwg * ((float)Math.Pow((double)i / range, gamma));
}
/* Blue */
gamma = 1.0 / display.d_gammaB;
bstep = (display.d_YCR - display.d_Y0R) / range;
for (int i = 0; i <= range; i++)
{
Yb2b[i] = display.d_Vrwb * ((float)Math.Pow((double)i / range, gamma));
}
/* Init reference white point */
X0 = refWhite[0];
Y0 = refWhite[1];
Z0 = refWhite[2];
}