public override bool Equals(object obj)
{
if (obj is MultiColor)
{
MultiColor c = obj as MultiColor;
if (data.Length != c.data.Length)
{
return(false);
}
for (int i = 0; i < data.Length; i++)
{
if (data[i] != c.data[i])
{
return(false);
}
if (transp[i] != c.transp[i])
{
return(false);
}
}
return(true);
}
else
{
return(false);
}
}
//ALGORITHM CORE
private byte closestMultiColor(MultiColor mc)
{
if (mc.allTransparent())
{
return(0);
}
else
{
int best = -1;
float bestd = float.PositiveInfinity;
for (int i = 0; i < multiPalette.Length; i++)
{
if (multiPalette[i] == null)
{
continue;
}
float d = mc.diff(multiPalette[i]);
if (d < bestd || best == -1)
{
best = i;
bestd = d;
}
}
return((byte)best);
}
}
/// <summary>
/// Shades checker
/// </summary>
/// <param name="ray">ray</param>
/// <param name="hit">hit</param>
/// /// <param name="hitObject">hitObject</param>
/// <param name="shapes">Primitive</param>
/// <param name="color">color</param>
public override void TestColor(ref Ray ray, ref HitInfo hit, ref Primitive hitObject, ref List <Primitive> shapes,
ref MultiColor mcolor)
{
// color.diffuse.Show();
Vector3 fromMe2Pt = new Vector3();
bool inShadow = false;
Ray r = new Ray(position, hit.point - position, hit.distance + 1);
//Console.WriteLine(hit.normal.ToString());
inShadow = Ray.CastAtPrimitive(ref r, ref shapes) != (hitObject);
//if (inShadow == false)
//{
// color.diffuse.Show();
//}
if (inShadow)
{
count++;
mcolor.diffuse *= 0;
mcolor.specular *= 0;
}
//if (!mcolor.specular.isZero()&& !mcolor.specular.isOne())
// mcolor.specular.Show();
// shading
fromMe2Pt = (hit.point - position).GetNormalized();
Ray temp = ray;
temp.Direction = -ray.Direction;
Material material = hitObject.GetMaterial();
Phong(ref fromMe2Pt, ref temp.Direction, ref hit.normal, ref mcolor, material);
}
/// <summary>
/// Phong light model
/// </summary>
/// <param name="Lightdir">Lightdir</param>
/// <param name="LookDir">LookDir</param>
/// /// <param name="normal">normal</param>
/// <param name="mcolor">mcolor</param>
/// <param name="material">material</param>
public virtual void Phong(
ref Vector3 Lightdir, ref Vector3 LookDir, ref Vector3 normal, ref
MultiColor mcolor,
Material material)
{
double specForce = 0;
// mcolor.specular.Show();
// this.color.Show();
double f = (-Lightdir).dot(normal);
//diffuse
mcolor.diffuse = mcolor.diffuse * material.diffuseColor * color * (-Lightdir).dot(normal);
//specular
specForce = (LookDir).dot(Lightdir.Reflect(normal));
if (specForce < 0)
{
specForce = 0;
}
// mcolor.specular.Show();
mcolor.specular *= material.specularColor * color * Math.Pow(specForce, material.shininess);
}
public MultiColor center()
{
MultiColor res = new MultiColor(min.Length);
for (int i = 0; i < min.Length; i++)
{
res.data[i] = (byte)((min[i] + max[i]) / 2);
}
return(res);
}
public void merge(MultiColor b)
{
for (int i = 0; i < data.Length; i++)
{
if (transp[i])
{
transp[i] = b.transp[i];
data[i] = b.data[i];
}
}
calcHash();
}
public float diff(MultiColor b)
{
float res = 0;
for (int i = 0; i < data.Length; i++)
{
if (!transp[i] && !b.transp[i])
{
float d = data[i] - b.data[i];
res += d * d;
}
}
return(res);
}
public bool inside(MultiColor c)
{
for (int i = 0; i < min.Length; i++)
{
if (c.transp[i])
{
continue;
}
if (c.data[i] < min[i])
{
return(false);
}
if (c.data[i] > max[i])
{
return(false);
}
}
return(true);
}
public MultiColor center()
{
MultiColor res = new MultiColor(min.Length);
for (int i = 0; i < min.Length; i++)
res.data[i] = (byte)((min[i] + max[i]) / 2);
return res;
}
public ImageIndexer(List<Bitmap> bl, int paletteCount, bool useAlpha, int transpCol)
{
this.bl = bl;
this.paletteCount = paletteCount;
this.useAlpha = useAlpha;
boxColorCount = bl.Count * 3;
//COMPUTE FREQUENCY TABLE
freqTable = new Dictionary<MultiColor,int>();
//Quick check just in case...
width = bl[0].Width;
height = bl[0].Height;
foreach(Bitmap b in bl)
{
if (b.Width != width || b.Height != height)
throw new Exception("Not all images have the same size!!");
}
for (int x = 0; x < width; x++)
for (int y = 0; y < height; y++)
{
MultiColor c = new MultiColor(boxColorCount);
for(int i = 0; i < bl.Count; i++)
c.setColor(i, bl[i].GetPixel(x, y));
c.calcHash();
if(!c.allTransparent())
if (freqTable.ContainsKey(c))
freqTable[c]++;
else
freqTable[c] = 1;
}
int ct = 0;
foreach (MultiColor c in freqTable.Keys)
if (c.someTransparent()) ct++;
// Console.Out.WriteLine("Transparent: " + ct);
Dictionary<MultiColor, int> newFreqTable = new Dictionary<MultiColor, int>();
foreach (MultiColor c in freqTable.Keys)
{
if (!c.deleteFlag)
{
int cnt = freqTable[c];
foreach(MultiColor c2 in freqTable.Keys)
{
if (c2 == null) continue;
if (c2.deleteFlag) continue;
if (c2 == c) continue;
if (c.diff(c2) == 0)
{
cnt += freqTable[c2];
c.merge(c2);
c2.deleteFlag = true;
}
}
c.deleteFlag = true;
c.removeAllTransparent();
newFreqTable.Add(c, cnt);
}
}
freqTable = newFreqTable;
ct = 0;
foreach (MultiColor c in freqTable.Keys)
if (c.someTransparent()) ct++;
// Console.Out.WriteLine("Transparent2: " + ct);
// NOW CREATE THE PALETTE ZONES
Box startBox = shrinkBox(new Box(boxColorCount));
boxes = new List<Box>();
boxes.Add(startBox);
while (boxes.Count < (useAlpha ? paletteCount - 1 : paletteCount))
{
// Console.Out.WriteLine(boxes.Count);
Box bo = getDominantBox();
if (bo == null)
break;
split(bo);
}
multiPalette = new MultiColor[paletteCount];
for (int j = useAlpha ? 1 : 0; j < paletteCount; j++)
if ((useAlpha ? j : j + 1) <= boxes.Count)
multiPalette[j] = boxes[useAlpha ? j - 1 : j].center();
//NOW CREATE THE PALETTE COLORS
palettes = new Color[bl.Count][];
for (int i = 0; i < bl.Count; i++)
{
palettes[i] = new Color[paletteCount];
for (int j = useAlpha ? 1 : 0; j < paletteCount; j++)
{
if ((useAlpha ? j : j + 1) > boxes.Count)
palettes[i][j] = Color.Fuchsia;
else
palettes[i][j] = boxes[useAlpha ? j - 1 : j].center().getColor(i);
// Console.Out.WriteLine(i + ": " + boxes[i] + ": "+ palette[i]);
}
if (useAlpha)
palettes[i][0] = Color.Transparent;
}
//NOW MAP ORIGINAL COLORS TO PALETTE ENTRIES
colorTable = new Dictionary<MultiColor, byte>();
foreach (MultiColor c in freqTable.Keys)
colorTable[c] = closestMultiColor(c);
//NOW INDEX THE WHOLE IMAGES
imageData = new byte[width, height];
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
MultiColor c = new MultiColor(boxColorCount);
for (int i = 0; i < bl.Count; i++)
c.setColor(i, bl[i].GetPixel(x, y));
c.calcHash();
if (c.allTransparent())
imageData[x, y] = (byte)transpCol;
else
imageData[x, y] = closestMultiColor(c);
}
}
Console.Out.WriteLine("DONE");
/*
}*/
}
public bool inside(MultiColor c)
{
for (int i = 0; i < min.Length; i++)
{
if (c.transp[i]) continue;
if (c.data[i] < min[i]) return false;
if (c.data[i] > max[i]) return false;
}
return true;
}
public float diff(MultiColor b)
{
float res = 0;
for(int i = 0; i < data.Length; i++)
if (!transp[i] && !b.transp[i])
{
float d = data[i] - b.data[i];
res += d * d;
}
return res;
}
public void merge(MultiColor b)
{
for(int i = 0; i < data.Length; i++)
if (transp[i])
{
transp[i] = b.transp[i];
data[i] = b.data[i];
}
calcHash();
}
//ALGORITHM CORE
private byte closestMultiColor(MultiColor mc)
{
if (mc.allTransparent()) return 0;
else
{
int best = -1;
float bestd = float.PositiveInfinity;
for (int i = 0; i < multiPalette.Length; i++)
{
if (multiPalette[i] == null) continue;
float d = mc.diff(multiPalette[i]);
if (d < bestd || best == -1)
{
best = i;
bestd = d;
}
}
return (byte)best;
}
}
public ImageIndexer(List <Bitmap> bl, int paletteCount, bool useAlpha, int transpCol)
{
this.bl = bl;
this.paletteCount = paletteCount;
this.useAlpha = useAlpha;
boxColorCount = bl.Count * 3;
//COMPUTE FREQUENCY TABLE
freqTable = new Dictionary <MultiColor, int>();
//Quick check just in case...
width = bl[0].Width;
height = bl[0].Height;
foreach (Bitmap b in bl)
{
if (b.Width != width || b.Height != height)
{
throw new Exception("Not all images have the same size!!");
}
}
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
MultiColor c = new MultiColor(boxColorCount);
for (int i = 0; i < bl.Count; i++)
{
c.setColor(i, bl[i].GetPixel(x, y));
}
c.calcHash();
if (!c.allTransparent())
{
if (freqTable.ContainsKey(c))
{
freqTable[c]++;
}
else
{
freqTable[c] = 1;
}
}
}
}
int ct = 0;
foreach (MultiColor c in freqTable.Keys)
{
if (c.someTransparent())
{
ct++;
}
}
// Console.Out.WriteLine("Transparent: " + ct);
Dictionary <MultiColor, int> newFreqTable = new Dictionary <MultiColor, int>();
foreach (MultiColor c in freqTable.Keys)
{
if (!c.deleteFlag)
{
int cnt = freqTable[c];
foreach (MultiColor c2 in freqTable.Keys)
{
if (c2 == null)
{
continue;
}
if (c2.deleteFlag)
{
continue;
}
if (c2 == c)
{
continue;
}
if (c.diff(c2) == 0)
{
cnt += freqTable[c2];
c.merge(c2);
c2.deleteFlag = true;
}
}
c.deleteFlag = true;
c.removeAllTransparent();
newFreqTable.Add(c, cnt);
}
}
freqTable = newFreqTable;
ct = 0;
foreach (MultiColor c in freqTable.Keys)
{
if (c.someTransparent())
{
ct++;
}
}
// Console.Out.WriteLine("Transparent2: " + ct);
// NOW CREATE THE PALETTE ZONES
Box startBox = shrinkBox(new Box(boxColorCount));
boxes = new List <Box>();
boxes.Add(startBox);
while (boxes.Count < (useAlpha ? paletteCount - 1 : paletteCount))
{
// Console.Out.WriteLine(boxes.Count);
Box bo = getDominantBox();
if (bo == null)
{
break;
}
split(bo);
}
multiPalette = new MultiColor[paletteCount];
for (int j = useAlpha ? 1 : 0; j < paletteCount; j++)
{
if ((useAlpha ? j : j + 1) <= boxes.Count)
{
multiPalette[j] = boxes[useAlpha ? j - 1 : j].center();
}
}
//NOW CREATE THE PALETTE COLORS
palettes = new Color[bl.Count][];
for (int i = 0; i < bl.Count; i++)
{
palettes[i] = new Color[paletteCount];
for (int j = useAlpha ? 1 : 0; j < paletteCount; j++)
{
if ((useAlpha ? j : j + 1) > boxes.Count)
{
palettes[i][j] = Color.Fuchsia;
}
else
{
palettes[i][j] = boxes[useAlpha ? j - 1 : j].center().getColor(i);
}
// Console.Out.WriteLine(i + ": " + boxes[i] + ": "+ palette[i]);
}
if (useAlpha)
{
palettes[i][0] = Color.Transparent;
}
}
//NOW MAP ORIGINAL COLORS TO PALETTE ENTRIES
colorTable = new Dictionary <MultiColor, byte>();
foreach (MultiColor c in freqTable.Keys)
{
colorTable[c] = closestMultiColor(c);
}
//NOW INDEX THE WHOLE IMAGES
imageData = new byte[width, height];
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
MultiColor c = new MultiColor(boxColorCount);
for (int i = 0; i < bl.Count; i++)
{
c.setColor(i, bl[i].GetPixel(x, y));
}
c.calcHash();
if (c.allTransparent())
{
imageData[x, y] = (byte)transpCol;
}
else
{
imageData[x, y] = closestMultiColor(c);
}
}
}
Console.Out.WriteLine("DONE");
/*
*
* }*/
}
public abstract void TestColor(ref Ray ray, ref HitInfo hit, ref Primitive hitObject, ref List <Primitive> shapes,
ref MultiColor color);