private void pictureBox1_Click(object sender, EventArgs e)
{
double expectedHue = (double)picX / pictureBox.Width;
double expectedVal = (double)picY / pictureBox.Height;
pickedColor = ColorRGB.HSL2RGB(expectedHue, 1, expectedVal);
for (int i = 0; i < img.Width; i++)
{
for (int j = 0; j < img.Height; j++)
{
Color c = img.GetPixel(i, j);
ColorRGB.RGB2HSL(new ColorRGB(c), out double h, out double s, out double v);
h += expectedHue - midHue;
if (h < 0)
{
h += 1;
}
if (h > 1)
{
h -= 1;
}
Color o = ColorRGB.HSL2RGB(h, s, v);
Color oa = Color.FromArgb(c.A, o.R, o.G, o.B);
newImg.SetPixel(i, j, oa);
}
}
Graphics graphics = starPicture.CreateGraphics();
graphics.Clear(Color.Black);
graphics.DrawImage(newImg, 0, 0, 220, 220);
}
private void pictureBox_Paint(object sender, PaintEventArgs e)
{
Bitmap bitmap = new Bitmap(pictureBox.Width, pictureBox.Height);
for (int i = 0; i < pictureBox.Width; i++)
{
for (int j = 0; j < pictureBox.Height; j++)
{
ColorRGB color = ColorRGB.HSL2RGB((double)i / pictureBox.Width, 0.4, (double)j / pictureBox.Height);
bitmap.SetPixel(i, j, color);
}
}
e.Graphics.DrawImage(bitmap, 0, 0);
}
public static void Saturate(Bitmap image)
{
for (int i = 0; i < image.Width; i++)
{
for (int j = 0; j < image.Height; j++)
{
double h; double s; double l;
Color c = image.GetPixel(i, j);
ColorRGB crgb = new ColorRGB(c);
ColorRGB.RGB2HSL(crgb, out h, out s, out l);
s = Math.Min(s + 0.1, 1);
ColorRGB nrgb = ColorRGB.HSL2RGB(h, s, l);
Color n = Color.FromArgb(c.A, nrgb.R, nrgb.G, nrgb.B);
image.SetPixel(i, j, n);
}
}
}
private void pictureBox_MouseMove(object sender, MouseEventArgs e)
{
picX = e.X; picY = e.Y;
if (e.Button != MouseButtons.Left)
{
return;
}
Bitmap img = ld.goldStar;
double expectedHue = (double)e.X / pictureBox.Width;
double expectedVal = (double)e.Y / pictureBox.Height;
pickedColor = ColorRGB.HSL2RGB(expectedHue, 1, expectedVal);
for (int i = 0; i < img.Width; i++)
{
for (int j = 0; j < img.Height; j++)
{
Color c = img.GetPixel(i, j);
ColorRGB.RGB2HSL(new ColorRGB(c), out double h, out double s, out double v);
h += expectedHue - midHue;
if (h < 0)
{
h += 1;
}
if (h > 1)
{
h -= 1;
}
Color o = ColorRGB.HSL2RGB(h, s, v);
Color oa = Color.FromArgb(c.A, o.R, o.G, o.B);
newImg.SetPixel(i, j, oa);
}
}
Graphics graphics = starPicture.CreateGraphics();
graphics.Clear(Color.Black);
graphics.DrawImage(newImg, 0, 0, 220, 220);
}
public static Bitmap Desaturate(Bitmap goldStar)
{
Bitmap darkStar = new Bitmap(goldStar);
for (int i = 0; i < goldStar.Width; i++)
{
for (int j = 0; j < goldStar.Height; j++)
{
double h; double s; double l;
Color c = goldStar.GetPixel(i, j);
ColorRGB crgb = new ColorRGB(c);
ColorRGB.RGB2HSL(crgb, out h, out s, out l);
ColorRGB nrgb = ColorRGB.HSL2RGB(h, 0, l);
Color n = Color.FromArgb(c.A, nrgb.R, nrgb.G, nrgb.B);
darkStar.SetPixel(i, j, n);
}
}
return(darkStar);
}