public static dynamic AmbientSampling()
{
try { //Prevents crash when user is on the secure desktop
int numberOfSamples = 6;
Bitmap[] screenSample = new Bitmap[numberOfSamples];
System.Drawing.Color[] screenPixels = new System.Drawing.Color[numberOfSamples];
for (int i = 0; i < screenSample.Length; i++)
{
screenSample[i] = new Bitmap(1, 1);
Graphics screen = Graphics.FromImage(screenSample[i]);
int width = System.Windows.Forms.Screen.PrimaryScreen.Bounds.Width;
int height = System.Windows.Forms.Screen.PrimaryScreen.Bounds.Height;
screen.CopyFromScreen(128 + (((width - 128) / (screenSample.Length - 1)) * i), 128 + (((height - 128) / (screenSample.Length - 1)) * i), 0, 0, screenSample[i].Size);
screenPixels[i] = screenSample[i].GetPixel(0, 0);
}
//HSB values for colours do not directly correspond to the way hue handles light.
//For instance, pink would show up as a vibrant red, while actual red would look extremely dark.
float brightnessAverage = (screenPixels.Average(x => x.GetBrightness()) + screenPixels.Average(x => x.GetSaturation()) / 3) * 255;
if (brightnessAverage > 255)
{
brightnessAverage = 255;
}
float saturationAverage = 2 - 2 * screenPixels.Average(x => x.GetBrightness());
if (saturationAverage > 1)
{
saturationAverage = 1;
}
saturationAverage = screenPixels.Average(x => x.GetSaturation()) * saturationAverage * 255;
//Desaturation
saturationAverage *= 0.5F;
//Saturation in darkness
float contrastBoost = (127 - (brightnessAverage * 10));
if (contrastBoost < 0)
{
contrastBoost = 0;
}
saturationAverage += contrastBoost;
if (saturationAverage > 255)
{
saturationAverage = 255;
}
//Hue is an angle, and can't be averaged directly.
double hueSin = 0;
double hueCos = 0;
foreach (System.Drawing.Color pixel in screenPixels)
{
hueSin += Math.Sin(pixel.GetHue() * Math.PI / 180);
hueCos += Math.Cos(pixel.GetHue() * Math.PI / 180);
}
double hueAverage = Math.Atan2(hueSin, hueCos) * (180 / Math.PI);
if (hueAverage < 0)
{
hueAverage = 360 + hueAverage;
}
hueAverage *= 182;
dynamic ambient = new ExpandoObject();
ambient.bri = (int)brightnessAverage;
ambient.hue = (int)hueAverage;
ambient.sat = (int)saturationAverage;
return(ambient);
} catch (Exception) {
dynamic ambient = new ExpandoObject();
ambient.bri = 128;
ambient.hue = 1;
ambient.sat = 1;
return(ambient);
}
}
public static dynamic AmbientSampling()
{
try { //Prevents crash when user is on the secure desktop
int numberOfSamples = 6;
Bitmap[] screenSample = new Bitmap[numberOfSamples];
System.Drawing.Color[] screenPixels = new System.Drawing.Color[numberOfSamples];
for (int i = 0; i < screenSample.Length; i++) {
screenSample[i] = new Bitmap(1, 1);
Graphics screen = Graphics.FromImage(screenSample[i]);
int width = System.Windows.Forms.Screen.PrimaryScreen.Bounds.Width;
int height = System.Windows.Forms.Screen.PrimaryScreen.Bounds.Height;
screen.CopyFromScreen(128 + (((width - 128) / (screenSample.Length - 1)) * i), 128 + (((height - 128) / (screenSample.Length - 1)) * i), 0, 0, screenSample[i].Size);
screenPixels[i] = screenSample[i].GetPixel(0, 0);
}
//HSB values for colours do not directly correspond to the way hue handles light.
//For instance, pink would show up as a vibrant red, while actual red would look extremely dark.
float brightnessAverage = (screenPixels.Average(x => x.GetBrightness()) + screenPixels.Average(x => x.GetSaturation()) / 3) * 255;
if (brightnessAverage > 255) {
brightnessAverage = 255;
}
float saturationAverage = 2 - 2 * screenPixels.Average(x => x.GetBrightness());
if (saturationAverage > 1) {
saturationAverage = 1;
}
saturationAverage = screenPixels.Average(x => x.GetSaturation()) * saturationAverage * 255;
if (Properties.Settings.Default.ambientSatMode == 0) {
//Desaturation
saturationAverage *= 0.5F;
//Saturation in darkness
float contrastBoost = (127 - (brightnessAverage * 10));
if (contrastBoost < 0) {
contrastBoost = 0;
}
saturationAverage += contrastBoost;
}
if (saturationAverage > 255) {
saturationAverage = 255;
}
//Hue is an angle, and can't be averaged directly.
double hueSin = 0;
double hueCos = 0;
foreach (System.Drawing.Color pixel in screenPixels) {
hueSin += Math.Sin(pixel.GetHue() * Math.PI / 180);
hueCos += Math.Cos(pixel.GetHue() * Math.PI / 180);
}
double hueAverage = Math.Atan2(hueSin, hueCos) * (180 / Math.PI);
if (hueAverage < 0) {
hueAverage = 360 + hueAverage;
}
hueAverage *= 182;
dynamic ambient = new ExpandoObject();
ambient.bri = (int)brightnessAverage;
ambient.hue = (int)hueAverage;
ambient.sat = (int)saturationAverage;
return ambient;
} catch (Exception) {
dynamic ambient = new ExpandoObject();
ambient.bri = 128;
ambient.hue = 1;
ambient.sat = 1;
return ambient;
}
}
