static int GetBilinear(double x, double y, int[] colors)
{
int[] px0 = new int[3];
px0[0] = (colors[0] & 0xFF0000) >> 16;
px0[1] = (colors[0] & 0x00FF00) >> 8;
px0[2] = colors[0] & 0x0000FF;
int[] px1 = new int[3];
px1[0] = (colors[1] & 0xFF0000) >> 16;
px1[1] = (colors[1] & 0x00FF00) >> 8;
px1[2] = colors[1] & 0x0000FF;
int[] px2 = new int[3];
px2[0] = (colors[2] & 0xFF0000) >> 16;
px2[1] = (colors[2] & 0x00FF00) >> 8;
px2[2] = colors[2] & 0x0000FF;
int[] px3 = new int[3];
px3[0] = (colors[3] & 0xFF0000) >> 16;
px3[1] = (colors[3] & 0x00FF00) >> 8;
px3[2] = colors[3] & 0x0000FF;
int[] crRet = new int[3];
for (int i = 0; i < 3; i++)
{
double m0 = px0[i] + x * (px1[i] - px0[i]);
double m1 = px2[i] + x * (px3[i] - px2[i]);
double my = m0 + y * (m1 - m0);
crRet[i] = Image.SAFECOLOR((int)my);
}
return(Image.rgb(crRet[0], crRet[1], crRet[2]));
}
static int fixpix(int color, double procent, FloatRGB colpro)
{
int colorR = (color & 0xFF0000) >> 16;
int colorG = (color & 0x00FF00) >> 8;
int colorB = color & 0x0000FF;
colorR = colorR + (int)((255 - colorR) * procent * colpro.r);
colorG = colorG + (int)((255 - colorG) * procent * colpro.g);
colorB = colorB + (int)((255 - colorB) * procent * colpro.b);
return(Image.rgb(colorR, colorG, colorB));
}
public ColorToneFilter(int tone, int saturation)
{
double l = 0.0f;
double[] result = RGBtoHLS(tone, _hue, l, _saturation);
_hue = result[0];
l = result[1];
_saturation = result[2];
_saturation = _saturation * (saturation / 255.0) * (saturation / 255.0);
_saturation = ((_saturation < 1) ? _saturation : 1);
for (int i = 0; i < 256; i++)
{
int cr = Image.rgb(i, i, i);
double h = 0.0f, ll = 0.0f, s = 0.0f;
result = RGBtoHLS(cr, h, ll, s);
h = result[0];
ll = result[1];
s = result[2];
ll = ll * (1 + (128 - Math.Abs(saturation - 128)) / 128.0 / 9.0);
_lum_tab[i] = ((ll < 1) ? ll : 1);
}
}
static int DoubleRGB_to_RGB(double r, double g, double b)
{
return(Image.rgb(Image.SAFECOLOR((int)(r * 255)), Image.SAFECOLOR((int)(g * 255)), Image.SAFECOLOR((int)(b * 255))));
}
