public static void SegmentImageRGB(MyFloatColor[,] src, double c, int minSeg, int w, int h, ProgressBar p1)
{
edges = new ImprovedEdge[2 * w * h + 6];
int ct = 0;
MyFloatColor c1, c2;
MainForm.UpdateLabel("Felzen.. Segmentation");
//building graph
p1.Value = 0;
int pvalue = 0;
p1.Maximum = 2 * h / 10;
/*
*
* right-1
* down-0
*
*/
for (int y = 0; y < h; y++)
{
for (int x = 0; x < w; x++)
{
c1 = src[x, y];
if (x + 1 < w)
{
c2 = src[x + 1, y];
//edges[ct].a = y * w + x;
edges[ct].a = ((y * w + x) << 1) + 1;
//edges[ct].b = y * w + x + 1;//right
edges[ct].w = diff(c1, c2);
ct++;
}
if (y + 1 < h)
{
c2 = src[x, y + 1];
edges[ct].a = (y * w + x) << 1;
//edges[ct].b = (y + 1) * w + x;//down
edges[ct].w = diff(c1, c2);
ct++;
}
}
pvalue++;
if (pvalue == 10)
{
p1.Value++;
pvalue = 0;
Application.DoEvents();
}
}
int[] Disset = new int[w * h];
int[] Size = new int[w * h];
int NumC = 0;
SegmentVert(Disset, edges, ct, w * h, c, Size, ref NumC, w);
GC.Collect();
for (int i = 0; i < ct; i++)
{
int start = (edges[i].a) >> 1;
int fin = 0;
if ((edges[i].a) % 2 == 0)
{
fin = start + w;
}
else
{
fin = start + 1;
}
int a = Djs.findset(start, Disset);
int b = Djs.findset(fin, Disset);
if ((a != b) && ((Size[a] < minSeg) || (Size[b] < minSeg)))
{
Djs.union1(a, b, Disset, Size);
NumC--;
}
}
byte[] R = new byte[w * h];
byte[] G = new byte[w * h];
byte [] B = new byte[w * h];
Random r = new Random();
r.NextBytes(R);
r.NextBytes(G);
r.NextBytes(B);
//DrawPictureBox
edges = null;
int normIndex;
for (int y = 0; y < h; y++)
{
for (int x = 0; x < w; x++)
{
normIndex = y * w + x;
int set = Djs.findset(normIndex, Disset);
src[x, y].G = ((float)1.0 * G[set]) / 255;;
src[x, y].R = ((float)(1.0 * R[set])) / 255;;
src[x, y].B = ((float)(1.0 * B[set])) / 255;;
}
pvalue++;
if (pvalue == 10)
{
pvalue = 0;
p1.Value++;
Application.DoEvents();
}
}
}
public static unsafe void ChangeContrast(Bitmap b, ProgressBar p1, double value)
{
MainForm.UpdateLabel("Updating Contrast");
p1.Maximum = (2 * b.Width) / 10;
p1.Value = 0;
int Pvalue = 0;
//Calculate Average;
double avR = 0, avG = 0, avB = 0;
Color c = new Color();
BitmapData bData = b.LockBits(new Rectangle(0, 0, b.Width, b.Height), ImageLockMode.ReadWrite, b.PixelFormat);
byte bitsPerPixel = (byte)Image.GetPixelFormatSize(b.PixelFormat);
byte *scan0 = (byte *)bData.Scan0.ToPointer();
for (int i = 0; i < b.Width; i++)
{
for (int j = 0; j < b.Height; j++)
{
byte *data = scan0 + j * bData.Stride + i * bitsPerPixel / 8;
//b.UnlockBits(bData);
//c = b.GetPixel(i, j);
avR += data[2];
avG += data[1];
avB += data[0];
}
Pvalue++;
if (Pvalue == 10)
{
Pvalue = 0;
p1.Value++;
}
}
;
avB /= (b.Width * b.Height);
avG /= (b.Width * b.Height);
avR /= (b.Width * b.Height);
int R, G, B;
for (int i = 0; i < b.Width; i++)
{
for (int j = 0; j < b.Height; j++)
{
byte *data = scan0 + j * bData.Stride + i * bitsPerPixel / 8;
R = Convert.ToInt32((data[2] - avR) * value + avR);
G = Convert.ToInt32((data[1] - avG) * value + avG);
B = Convert.ToInt32((data[0] - avB) * value + avB);
NormalizeRGB(ref B);
NormalizeRGB(ref R);
NormalizeRGB(ref G);
data[2] = (byte)R;
data[1] = (byte)G;
data[0] = (byte)B;
}
Pvalue++;
if (Pvalue == 10)
{
Pvalue = 0;
p1.Value++;
}
}
b.UnlockBits(bData);
return;
}
public static void SegmentImageRGBgs(float[,] src, double c, int minSeg, int w, int h, ProgressBar p1)
{
edges = new ImprovedEdge[2 * w * h + 6];
int ct = 0;
float c1, c2;
MainForm.UpdateLabel("Felzen.. Segmentation");
//building graph
p1.Value = 0;
int pvalue = 0;
p1.Maximum = 2 * h / 10;
for (int y = 0; y < h; y++)
{
for (int x = 0; x < w; x++)
{
c1 = src[x, y];
if (x + 1 < w)
{
c2 = src[x + 1, y];
//edges[ct].a = y * w + x;
// edges[ct].b = y * w + x + 1;
edges[ct].a = ((y * w + x) << 1) + 1;
edges[ct].w = diff(c1, c2);
ct++;
}
if (y + 1 < h)
{
c2 = src[x, y + 1];
// edges[ct].a = y * w + x;
//edges[ct].b = (y + 1) * w + x;
edges[ct].a = ((y * w + x) << 1) + 1;
edges[ct].w = diff(c1, c2);
ct++;
}
}
pvalue++;
if (pvalue == 10)
{
p1.Value++;
pvalue = 0;
Application.DoEvents();
}
}
int[] Disset = new int[w * h];
int[] Size = new int[w * h];
int NumC = 0;
SegmentVert(Disset, edges, ct, w * h, c, Size, ref NumC, w);
GC.Collect();
for (int i = 0; i < ct; i++)
{
int start = (edges[i].a) >> 1;
int fin = 0;
if ((edges[i].a) % 2 == 0)
{
fin = start + w;
}
else
{
fin = start + 1;
}
int a = Djs.findset(start, Disset);
int b = Djs.findset(fin, Disset);
if ((a != b) && ((Size[a] < minSeg) || (Size[b] < minSeg)))
{
Djs.union1(a, b, Disset, Size);
NumC--;
}
}
Color[] Colors = new Color[w * h];
for (int i = 0; i < w * h; i++)
{
Colors[i] = GetRandomColor();
}
//DrawPictureBox
edges = null;
int normIndex;
for (int y = 0; y < h; y++)
{
for (int x = 0; x < w; x++)
{
normIndex = y * w + x;
src[x, y] = (float)1.0 * (Colors[Djs.findset(normIndex, Disset)].G) / 255;;
src[x, y] = (float)1.0 * (Colors[Djs.findset(normIndex, Disset)].R) / 255;;
src[x, y] = (float)1.0 * (Colors[Djs.findset(normIndex, Disset)].B) / 255;;
}
pvalue++;
if (pvalue == 10)
{
pvalue = 0;
p1.Value++;
Application.DoEvents();
}
}
}
public static double getCurrentImageDisper(byte[,] src, int w, int h, ProgressBar progressBar1)
{
MainForm.UpdateLabel("getting Image Static Data");
double answ = 0;
int ct = 0;
progressBar1.Minimum = 0;
progressBar1.Maximum = h;
byte c1, c2;
for (int y = 0; y < h; y++)
{
for (int x = 0; x < w; x++)
{
c1 = src[x, y];
if (x + 1 < w)
{
c2 = src[x + 1, y];
answ += diff(c1, c2);
ct++;
}
if (y + 1 < h)
{
c2 = src[x, y + 1];
answ += diff(c1, c2);
ct++;
}
}
progressBar1.Value = y;
}
return((int)(answ * 10 / ct));
/*
* double mid = answ / ct;
* answ = 0;
* ct = 0;
*
* for (int y = 0; y < h; y++)
* {
* for (int x = 0; x < w; x++)
* {
* c1 = src[x, y];
* if (x + 1 < w)
* {
* c2 = src[x + 1, y];
*
* answ += (mid - diff(c1, c2)) * (mid - diff(c1, c2));
* ct++;
* }
* if (y + 1 < h)
* {
* c2 = src[x, y + 1];
* answ += (mid - diff(c1, c2)) * (mid - diff(c1, c2));
* ct++;
* }
* }
* progressBar1.Value = y + h;
* }
* return Math.Sqrt(answ / ct);
*/
}