public static Color ModifyBrightness(Color c, double brightness)
{
HSB hsb = RGB.ToHSB(c);
hsb.Brightness *= brightness;
return(hsb.ToColor());
}
public static Color ModifySaturation(Color c, double Saturation)
{
HSB hsb = RGB.ToHSB(c);
hsb.Saturation *= Saturation;
return(hsb.ToColor());
}
public static Color ModifyHue(Color c, double Hue)
{
HSB hsb = RGB.ToHSB(c);
hsb.Hue *= Hue;
return(hsb.ToColor());
}
// Hue = 0 -> 360
// Saturation = 100 -> 0
protected override void DrawBrightness()
{
Graphics g = Graphics.FromImage(bmp);
HSB start = new HSB(0.0, 1.0, SetColor.HSB.Brightness);
HSB end = new HSB(0.0, 0.0, SetColor.HSB.Brightness);
for (int i = 0; i < width; i++)
{
start.Hue = end.Hue = (double)i / (height - 1);
LinearGradientBrush brush = new LinearGradientBrush(new Rectangle(0, 0, 1, height),
start.ToColor(), end.ToColor(), 90, false);
g.FillRectangle(brush, new Rectangle(i, 0, 1, height));
}
}
// Saturation = 0 -> 100
// Brightness = 100 -> 0
protected override void DrawHue()
{
Graphics g = Graphics.FromImage(bmp);
HSB start = new HSB(SetColor.HSB.Hue, 0.0, 0.0);
HSB end = new HSB(SetColor.HSB.Hue, 1.0, 0.0);
for (int i = 0; i < height; i++)
{
start.Brightness = end.Brightness = 1.0 - (double)i / (height - 1);
LinearGradientBrush brush = new LinearGradientBrush(new Rectangle(0, 0, width, 1),
start.ToColor(), end.ToColor(), 0, false);
g.FillRectangle(brush, new Rectangle(0, i, width, 1));
}
}
// Hue = 0 -> 360
// Saturation = 100 -> 0
protected override void DrawBrightness()
{
Graphics g = Graphics.FromImage(bmp);
HSB start = new HSB(0.0, 1.0, SetColor.HSB.Brightness);
HSB end = new HSB(0.0, 0.0, SetColor.HSB.Brightness);
for (int i = 0; i < width; i++)
{
start.Hue = end.Hue = (double)i / (height - 1);
LinearGradientBrush brush = new LinearGradientBrush(new Rectangle(0, 0, 1, height),
start.ToColor(), end.ToColor(), 90, false);
g.FillRectangle(brush, new Rectangle(i, 0, 1, height));
}
}
// Saturation = 0 -> 100
// Brightness = 100 -> 0
protected override void DrawHue()
{
Graphics g = Graphics.FromImage(bmp);
HSB start = new HSB(SetColor.HSB.Hue, 0.0, 0.0);
HSB end = new HSB(SetColor.HSB.Hue, 1.0, 0.0);
for (int i = 0; i < height; i++)
{
start.Brightness = end.Brightness = 1.0 - (double)i / (height - 1);
LinearGradientBrush brush = new LinearGradientBrush(new Rectangle(0, 0, width, 1),
start.ToColor(), end.ToColor(), 0, false);
g.FillRectangle(brush, new Rectangle(0, i, width, 1));
}
}
