private static Bitmap GetBitmapFromBlob(Bitmap source, Blob blob)
{
int rX = blob.Rectangle.Width / 2;
int rY = blob.Rectangle.Height / 2;
Bitmap result = new Bitmap(blob.Rectangle.Width, blob.Rectangle.Height);
IColorQuantizer quantizer = new MedianCutQuantizer();
for (int x = 0; x < blob.Rectangle.Width - 1; x++)
{
for (int y = 0; y < blob.Rectangle.Height - 1; y++)
{
Color color = source.GetPixel(blob.Rectangle.Location.X + x, blob.Rectangle.Location.Y + y);
if (x > (rX / 2) && x < blob.Rectangle.Width - (rX / 2) && y > (rY / 2) && y < blob.Rectangle.Height - (rY / 2))
{
quantizer.AddColor(color);
}
result.SetPixel(x, y, color);
}
}
Color[] palette = quantizer.GetPalette(1);
return(result);
}
private static ObjectStruct GetDominantColorFromBlob(Bitmap source, Blob blob)
{
int rX = blob.Rectangle.Width / 2;
int rY = blob.Rectangle.Height / 2;
// int r = blob.Rectangle.Width > 200 ? 40 : 2;
int r = blob.Rectangle.Width / 4;
IColorQuantizer quantizer = new MedianCutQuantizer();
for (int x = 0; x < blob.Rectangle.Width - 1; x++)
{
for (int y = 0; y < blob.Rectangle.Height - 1; y++)
{
Color color = source.GetPixel(blob.Rectangle.Location.X + x, blob.Rectangle.Location.Y + y);
if (x > rX - r && x < rX + r && y > rY - r && y < rY + r)
{
double hue;
double saturation;
double value;
ColorToHSV(color, out hue, out saturation, out value);
Color alignedСolor = ColorFromHSV(hue, saturation, value);
quantizer.AddColor(alignedСolor);
}
}
}
// int paletteLenght = blob.Rectangle.Width > 200 ? 24 : 24; 36 64
int paletteLenght = 256;
Color[] color1 = quantizer.GetPalette(paletteLenght);
ObjectStruct obj = new ObjectStruct();
int lenght = paletteLenght;
obj.Tone = new HSVColor[lenght];
int index = 0;
foreach (Color color in color1)
{
double hue;
double saturation;
double value;
ColorToHSV(color, out hue, out saturation, out value);
obj.Tone[index] = new HSVColor(hue, saturation, value);
index++;
}
obj.Radius = rX;
return(obj);
}
private void Timer_Tick(object sender, EventArgs e)
{
using (var bitmap = new Bitmap((int)SystemParameters.PrimaryScreenWidth,
(int)SystemParameters.PrimaryScreenHeight,
System.Drawing.Imaging.PixelFormat.Format32bppRgb))
{
using (var bmpGraphics = Graphics.FromImage(bitmap))
{
bmpGraphics.CopyFromScreen(0, 0, 0, 0, bitmap.Size);
//var bitmapPtr = screenBmp.GetHbitmap();
//var bitmapSource = Imaging.CreateBitmapSourceFromHBitmap(
// bitmapPtr,
// IntPtr.Zero,
// Int32Rect.Empty,
// BitmapSizeOptions.FromEmptyOptions());
//Bitmap bitmap;
//using (var outStream = new MemoryStream())
//{
// BitmapEncoder enc = new BmpBitmapEncoder();
// enc.Frames.Add(BitmapFrame.Create(bitmapSource));
// enc.Save(outStream);
// bitmap = new Bitmap(outStream);
//}
//DeleteObject(bitmapPtr);
var bounds = new Rectangle(0, 0, bitmap.Width, bitmap.Height);
var bitmapData =
bitmap.LockBits(bounds, System.Drawing.Imaging.ImageLockMode.ReadOnly,
bitmap.PixelFormat);
IntPtr bitmapDataPointer = bitmapData.Scan0;
// initalizes the pixel read buffer
Int32[] sourceBuffer = new Int32[bitmap.Width];
// sets the offset to the first pixel in the image
Int64 sourceOffset = bitmapData.Scan0.ToInt64();
for (Int32 row = 0; row < bitmap.Height; row++)
{
// copies the whole row of pixels to the buffer
Marshal.Copy(new IntPtr(sourceOffset), sourceBuffer, 0, bitmap.Width);
// scans all the colors in the buffer
foreach (Color color in sourceBuffer.Select(argb => Color.FromArgb(argb)))
{
_quantizer.AddColor(color);
}
// increases a source offset by a row
sourceOffset += bitmapData.Stride;
}
bitmap.UnlockBits(bitmapData);
var mainColor = _quantizer.GetPalette(2).OrderBy(c => GetBrightness(c)).FirstOrDefault();
_quantizer.Clear();
//GC.Collect();
Background.Fill = new System.Windows.Media.SolidColorBrush(System.Windows.Media.Color.FromArgb(mainColor.A, mainColor.R, mainColor.G, mainColor.B));
deviceIO.SetColor(mainColor.R, mainColor.G, mainColor.B, 500);
}
}
}