public static bool PhotoBlur(ref Bitmap bmp, int zone, int baseOffset)
{
if (bmp.PixelFormat != PixelFormat.Format24bppRgb)
return false;
if ((zone < 1) | (zone > 30)) return false;
if ((baseOffset < 0) | (baseOffset > 20)) return false;
int w = bmp.Width;
int h = bmp.Height;
double baseB = 1.010d + (double)baseOffset / 1000d;
double[] paw = new double[256];
for (int i = 0; i < 256; i++)
paw[i] = Math.Pow(baseB, (double)i);
int[,] mask = new int[zone * 2 + 1, zone * 2 + 1];
int r = zone * zone;
for (int i = 0; i < zone * 2 + 1; i++)
for (int j = 0; j < zone * 2 + 1; j++)
if ((i - zone) * (i - zone) + (j - zone) * (j - zone) <= r)
mask[i, j] = 1;
else
mask[i, j] = 0;
double rr, gg, bb;
int count;
Bitmap tmp = bmp.Clone() as Bitmap;
BmpProc24 src = new BmpProc24(tmp);
BmpProc24 dst = new BmpProc24(bmp);
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
count = 0;
rr = gg = bb = 0d;
for (int iy = y - zone; iy < y + zone + 1; iy++)
for (int ix = x - zone; ix < x + zone + 1; ix++)
{
if ((iy < 0) | (iy > h - 1)) continue;
if ((ix < 0) | (ix > w - 1)) continue;
src.SetXY(ix, iy);
rr += paw[src.R] * mask[ix - x + zone, iy - y + zone];
gg += paw[src.G] * mask[ix - x + zone, iy - y + zone];
bb += paw[src.B] * mask[ix - x + zone, iy - y + zone];
count += mask[ix - x + zone, iy - y + zone];
}
dst.SetXY(x, y);
dst.R = AdjustByte(Math.Log(rr / count, baseB));
dst.G = AdjustByte(Math.Log(gg / count, baseB));
dst.B = AdjustByte(Math.Log(bb / count, baseB));
}
CallDispose(dst, src, tmp);
return true;
}
public static bool AdditiveColor(Bitmap bmpDst, Bitmap bmpSrc,
RGBSelection rgb)
{
if (bmpDst.PixelFormat != PixelFormat.Format24bppRgb)
return false;
if (bmpSrc.PixelFormat != PixelFormat.Format24bppRgb)
return false;
int w = bmpDst.Width;
int h = bmpDst.Height;
if ((bmpSrc.Width != w) | (bmpSrc.Height != h)) return false;
BmpProc24 src = new BmpProc24(bmpSrc);
BmpProc24 dst = new BmpProc24(bmpDst);
switch (rgb)
{
case RGBSelection.all:
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
src.SetXY(x, y);
dst.SetXY(x, y);
dst.R = AdjustByte(dst.R + src.R);
dst.G = AdjustByte(dst.G + src.G);
dst.B = AdjustByte(dst.B + src.B);
}
break;
case RGBSelection.red:
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
src.SetXY(x, y);
dst.SetXY(x, y);
dst.R = AdjustByte(dst.R + src.R);
}
break;
case RGBSelection.green:
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
src.SetXY(x, y);
dst.SetXY(x, y);
dst.G = AdjustByte(dst.G + src.G);
}
break;
case RGBSelection.blue:
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
src.SetXY(x, y);
dst.SetXY(x, y);
dst.B = AdjustByte(dst.B + src.B);
}
break;
}
CallDispose(dst, src);
return true;
}
public static bool CircularPixelate(ref Bitmap bmp, int rzone, int azone,
int cx, int cy)
{
if (bmp.PixelFormat != PixelFormat.Format24bppRgb)
return false;
int w = bmp.Width;
int h = bmp.Height;
pixelinfo[,] pi = new pixelinfo[w, h];
if ((cx == 0) & (cy == 0)) { cx = w / 2; cy = h / 2; }
double degree = 180d / Math.PI;
double r, a;
int xx, yy;
Rectangle rct = new Rectangle(0, 0, w - 1, h - 1);
Bitmap tmp = bmp.Clone() as Bitmap;
BmpProc24 src = new BmpProc24(tmp);
BmpProc24 dst = new BmpProc24(bmp);
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
r = Math.Sqrt((x - cx) * (x - cx) + (y - cy) * (y - cy));
a = Math.Atan2(y - cy, x - cx) * degree; // degree
r = ((int)(r + 0.5) / rzone) * rzone;
a = ((int)(a + 0.5) / azone) * azone / degree; // radian
xx = (int)(r * Math.Cos(a) + cx);
yy = (int)(r * Math.Sin(a) + cy);
if (rct.Contains(xx, yy))
{
src.SetXY(x, y);
pi[xx, yy].r += src.R;
pi[xx, yy].g += src.G;
pi[xx, yy].b += src.B;
pi[xx, yy].count += 1;
}
}
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
if (pi[x, y].count == 0) continue;
src.SetXY(x, y);
src.R = (byte)(pi[x, y].r / pi[x, y].count);
src.G = (byte)(pi[x, y].g / pi[x, y].count);
src.B = (byte)(pi[x, y].b / pi[x, y].count);
}
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
r = Math.Sqrt((x - cx) * (x - cx) + (y - cy) * (y - cy));
a = Math.Atan2(y - cy, x - cx) * degree; // degree
r = ((int)(r + 0.5) / rzone) * rzone;
a = ((int)(a + 0.5) / azone) * azone / degree; // radian
xx = (int)(r * Math.Cos(a) + cx);
yy = (int)(r * Math.Sin(a) + cy);
if (rct.Contains(xx, yy))
{
dst.SetXY(x, y);
src.SetXY(xx, yy);
dst.R = src.R; dst.G = src.G; dst.B = src.B;
}
}
CallDispose(dst, src, tmp);
return true;
}
public static bool PatternMosaic(ref Bitmap bmp, PatternShape ps,
int width, int height)
{
if (bmp.PixelFormat != PixelFormat.Format24bppRgb)
return false;
if ((width < 5) | (width > 20)) return false;
if ((height < 5) | (height > 60)) return false;
int w = bmp.Width;
int h = bmp.Height;
double ww = (double)width;
double hh = (double)height;
double[] wd = new double[height];
int[] iwd = new int[height];
switch (ps)
{
case PatternShape.Brick:
for (int i = 0; i < height; i++)
{
if ((double)i < (hh / 2d))
wd[i] = ww;
else
wd[i] = 0;
iwd[i] = (int)(wd[i] + 0.5);
}
break;
case PatternShape.Diamond:
for (int i = 0; i < height; i++)
{
if ((double)i < (hh / 2d))
wd[i] = ww * (double)i * 2d / hh;
else
wd[i] = ww * 2d - ww * (double)i * 2d / hh;
iwd[i] = (int)(wd[i] + 0.5);
}
break;
case PatternShape.Hexagon:
for (int i = 0; i < height; i++)
{
if ((double)i < (hh / 6d))
wd[i] = ww * (double)i * 6d / hh;
else
{
if ((double)i < (hh / 2d))
wd[i] = ww;
else
{
if ((double)i < (hh * 2d / 3d))
wd[i] = ww * 4d - ww * (double)i * 6d / hh;
else
wd[i] = 0;
}
}
iwd[i] = (int)(wd[i] + 0.5);
}
break;
case PatternShape.Circle:
for (int i = 0; i < height; i++)
{
if ((double)i < (hh / 2d))
wd[i] = ww * (double)i * 2d / hh
- (ww / 8d) * Math.Sin((double)i * 4d / hh * Math.PI);
else
wd[i] = ww * 2d - ww * (double)i * 2d / hh
+ (ww / 8d) * Math.Sin((double)(i - hh / 2d) *
4d / hh * Math.PI);
iwd[i] = (int)(wd[i] + 0.5);
}
break;
}
bool eflag = false;
int r, g, b, count, d, im, yinit;
double rm;
Bitmap tmp = bmp.Clone() as Bitmap;
Graphics gr = Graphics.FromImage(bmp);
gr.SmoothingMode = SmoothingMode.AntiAlias;
Pen pn = new Pen(Color.Black, 1.0f);
BmpProc24 src = new BmpProc24(tmp);
for (int x = 0; x < w - 1 + width; x += width)
{
eflag = !eflag;
if (eflag) yinit = 0; else yinit = -height / 2;
for (int y = yinit; y < h - 1; y += height)
{
r = g = b = count = 0;
for (int iy = y; iy < y + height; iy++)
{
if ((iy > h - 1) | (iy < 0)) continue;
d = iy % height;
if (eflag)
{
im = iwd[d];
rm = wd[d];
}
else
{
im = width - iwd[d];
rm = ww - wd[d];
}
for (int ix = x - im; ix <= x + im; ix++)
{
if ((ix < 0) | (ix > w - 1)) continue;
src.SetXY(ix, iy);
r += src.R;
g += src.G;
b += src.B;
count++;
}
}
if (count == 0) continue;
r /= count;
g /= count;
b /= count;
pn.Color = Color.FromArgb(r, g, b);
for (int iy = y; iy < y + height; iy++)
{
if ((iy > h - 1) | (iy < 0)) continue;
d = iy % height;
if (eflag)
{
im = iwd[d];
rm = wd[d];
}
else
{
im = width - iwd[d];
rm = (double)width - wd[d];
}
gr.DrawLine(pn, (float)(x - rm), (float)iy,
(float)(x + rm), (float)iy);
}
}
}
CallDispose(src, gr, tmp);
return true;
}
public static bool AdditiveColor(Bitmap bmpDst, Bitmap bmpSrc,
RGBSelection rgb, int dstX, int dstY)
{
if (bmpDst.PixelFormat != PixelFormat.Format24bppRgb)
return false;
if (bmpSrc.PixelFormat != PixelFormat.Format24bppRgb)
return false;
Rectangle dstRect = new Rectangle(0, 0,
bmpDst.Width, bmpDst.Height);
Rectangle srcRect = new Rectangle(dstX, dstY,
bmpSrc.Width, bmpSrc.Height);
if (!dstRect.IntersectsWith(srcRect)) return true;
dstRect.Intersect(srcRect);
int scanX = dstRect.X;
int scanY = dstRect.Y;
int scanEndX = scanX + dstRect.Width;
int scanEndY = scanY + dstRect.Height;
BmpProc24 src = new BmpProc24(bmpSrc);
BmpProc24 dst = new BmpProc24(bmpDst);
switch (rgb)
{
case RGBSelection.all:
for (int y = scanY; y < scanEndY; y++)
for (int x = scanX; x < scanEndX; x++)
{
src.SetXY(x - dstX, y - dstY);
dst.SetXY(x, y);
dst.R = AdjustByte(dst.R + src.R);
dst.G = AdjustByte(dst.G + src.G);
dst.B = AdjustByte(dst.B + src.B);
}
break;
case RGBSelection.red:
for (int y = scanY; y < scanEndY; y++)
for (int x = scanX; x < scanEndX; x++)
{
src.SetXY(x - dstX, y - dstY);
dst.SetXY(x, y);
dst.R = AdjustByte(dst.R + src.R);
}
break;
case RGBSelection.green:
for (int y = scanY; y < scanEndY; y++)
for (int x = scanX; x < scanEndX; x++)
{
src.SetXY(x - dstX, y - dstY);
dst.SetXY(x, y);
dst.G = AdjustByte(dst.G + src.G);
}
break;
case RGBSelection.blue:
for (int y = scanY; y < scanEndY; y++)
for (int x = scanX; x < scanEndX; x++)
{
src.SetXY(x - dstX, y - dstY);
dst.SetXY(x, y);
dst.B = AdjustByte(dst.B + src.B);
}
break;
}
CallDispose(dst, src);
return true;
}
public static bool UnsharpMask(ref Bitmap bmp, int zone, int percent)
{
if (bmp.PixelFormat != PixelFormat.Format24bppRgb)
return false;
if ((zone < 0) | (zone > 15)) return false;
if (percent < 0) return false;
int w = bmp.Width;
int h = bmp.Height;
double f = (double)percent / 100d;
Bitmap tmp = bmp.Clone() as Bitmap;
GaussianBlur(ref tmp, zone);
BmpProc24 src = new BmpProc24(tmp);
BmpProc24 dst = new BmpProc24(bmp);
for (int y = 0; y < h - 1; y++)
for (int x = 0; x < w - 1; x++)
{
src.SetXY(x, y);
dst.SetXY(x, y);
dst.R = AdjustByte(dst.R + f * (dst.R - src.R));
dst.G = AdjustByte(dst.G + f * (dst.G - src.G));
dst.B = AdjustByte(dst.B + f * (dst.B - src.B));
}
CallDispose(dst, src, tmp);
return true;
}
public static bool KuwaharaMedian(ref Bitmap bmp, int block)
{
if (bmp.PixelFormat != PixelFormat.Format24bppRgb)
return false;
if ((block < 1) | (block > 10)) return false;
int w = bmp.Width;
int h = bmp.Height;
int num = (block + 1) * (block + 1);
int[] v = new int[4];
Point[] evP = new Point[4];
Rectangle rct = new Rectangle(0, 0, w - 1, h - 1);
int[] xini = new int[4];
int[] xend = new int[4];
int[] yini = new int[4];
int[] yend = new int[4];
int iarr, maxr, maxg, maxb, minr, ming, minb, indx, min;
byte[] rr = new byte[num];
byte[] gg = new byte[num];
byte[] bb = new byte[num];
int imed = num / 2;
Bitmap tmp = bmp.Clone() as Bitmap;
BmpProc24 src = new BmpProc24(tmp);
BmpProc24 dst = new BmpProc24(bmp);
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
evP[0].X = x - block; evP[0].Y = y - block; // upper-left
xini[0] = x - block; xend[0] = x;
yini[0] = y - block; yend[0] = y;
evP[1].X = x + block; evP[1].Y = y - block; // upper-right
xini[1] = x; xend[1] = x + block;
yini[1] = y - block; yend[1] = y;
evP[2].X = x + block; evP[2].Y = y + block; // lower-right
xini[2] = x; xend[2] = x + block;
yini[2] = y; yend[2] = y + block;
evP[3].X = x - block; evP[3].Y = y + block; // lower-left
xini[3] = x - block; xend[3] = x;
yini[3] = y; yend[3] = y + block;
for (int i = 0; i <= 3; i++)
{
v[i] = 1000;
if (!rct.Contains(evP[i])) continue;
maxr = maxg = maxb = 0; minr = ming = minb = 255;
for (int ix = xini[i]; ix <= xend[i]; ix++)
for (int iy = yini[i]; iy <= yend[i]; iy++)
{
src.SetXY(ix, iy);
if (src.R > maxr) maxr = src.R;
if (src.R < minr) minr = src.R;
if (src.G > maxg) maxg = src.G;
if (src.G < ming) ming = src.G;
if (src.B > maxb) maxb = src.B;
if (src.B < minb) minb = src.B;
}
v[i] = (maxr - minr) + (maxg - ming) + (maxb - minb);
}
min = 1000; indx = 0;
for (int i = 0; i <= 3; i++)
if (v[i] < min) { min = v[i]; indx = i; }
iarr = 0;
for (int ix = xini[indx]; ix <= xend[indx]; ix++)
for (int iy = yini[indx]; iy <= yend[indx]; iy++)
{
src.SetXY(ix, iy);
rr[iarr] = src.R;
gg[iarr] = src.G;
bb[iarr] = src.B;
iarr++;
}
Array.Sort(rr);
Array.Sort(gg);
Array.Sort(bb);
dst.SetXY(x, y);
dst.R = rr[imed];
dst.G = gg[imed];
dst.B = bb[imed];
}
CallDispose(dst, src, tmp);
return true;
}
public static bool SaturationHistogram(Bitmap bmp, out Bitmap bmpHist)
{
if (bmp.PixelFormat != PixelFormat.Format24bppRgb)
{
bmpHist = null;
return false;
}
int w = bmp.Width;
int h = bmp.Height;
int[] hist = new int[256];
int hue, satu, lumi;
byte rr, gg, bb;
BmpProc24 src = new BmpProc24(bmp);
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
src.SetXY(x, y);
rr = src.R; gg = src.G; bb = src.B;
ImageUtils.RGBToHSL(rr, gg, bb, out hue, out satu, out lumi);
hist[satu]++;
}
src.Dispose();
int max = -1;
for (int i = 0; i < 256; i++)
if (hist[i] > max) max = hist[i];
for (int i = 0; i < 256; i++)
hist[i] = hist[i] * 140 / max;
bmpHist = new Bitmap(275, 160, PixelFormat.Format24bppRgb);
Graphics g = Graphics.FromImage(bmpHist);
g.Clear(Color.AntiqueWhite);
Pen pen = new Pen(Color.Gray, 1F);
for (int i = 0; i < 256; i++)
g.DrawLine(pen, 10 + i, 150, 10 + i, 150 - hist[i]);
pen.Color = Color.Black;
g.DrawLine(pen, 8, 150, 8, 10);
for (int i = 0; i <= 20; i++)
if ((i % 2) == 0)
g.DrawLine(pen, 8, 150 - 7 * i, 4, 150 - 7 * i);
else
g.DrawLine(pen, 8, 150 - 7 * i, 6, 150 - 7 * i);
g.DrawLine(pen, 10, 150, 10 + 255, 150);
for (int i = 0; i <= 51; i++)
if ((i % 10) == 0)
g.DrawLine(pen, 10 + 5 * i, 150, 10 + 5 * i, 156);
else
if ((i % 5) == 0)
g.DrawLine(pen, 10 + 5 * i, 150, 10 + 5 * i, 154);
else
g.DrawLine(pen, 10 + 5 * i, 150, 10 + 5 * i, 152);
g.Dispose();
return true;
}
public static void intNearest(BmpProc24 dst, BmpProc24 src,
int dstX, int dstY, double srcX, double srcY)
{
int ix = (int)(srcX + 0.5); // nearest point
int iy = (int)(srcY + 0.5);
dst.SetXY(dstX, dstY);
src.SetXY(ix, iy);
dst.R = src.R;
dst.G = src.G;
dst.B = src.B;
}
public static bool KuwaharaDetail(ref Bitmap bmp, int block)
{
if (bmp.PixelFormat != PixelFormat.Format24bppRgb)
return false;
if ((block < 1) | (block > 10)) return false;
int w = bmp.Width;
int h = bmp.Height;
int num = (block + 1) * (block + 1);
int[] v = new int[4];
Point[] evP = new Point[4];
Rectangle rct = new Rectangle(0, 0, w - 1, h - 1);
int[] xini = new int[4];
int[] xend = new int[4];
int[] yini = new int[4];
int[] yend = new int[4];
int[] vr = new int[4];
int[] vg = new int[4];
int[] vb = new int[4];
int r, g, b, maxr, maxg, maxb, minr, ming, minb, indx, min;
double t;
Bitmap tmp = bmp.Clone() as Bitmap;
BmpProc24 src = new BmpProc24(tmp);
BmpProc24 dst = new BmpProc24(bmp);
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
evP[0].X = x - block; evP[0].Y = y - block; // upper-left
xini[0] = x - block; xend[0] = x;
yini[0] = y - block; yend[0] = y;
evP[1].X = x + block; evP[1].Y = y - block; // upper-right
xini[1] = x; xend[1] = x + block;
yini[1] = y - block; yend[1] = y;
evP[2].X = x + block; evP[2].Y = y + block; // lower-right
xini[2] = x; xend[2] = x + block;
yini[2] = y; yend[2] = y + block;
evP[3].X = x - block; evP[3].Y = y + block; // lower-left
xini[3] = x - block; xend[3] = x;
yini[3] = y; yend[3] = y + block;
for (int i = 0; i <= 3; i++)
{
v[i] = 1000;
if (!rct.Contains(evP[i])) continue;
maxr = maxg = maxb = 0; minr = ming = minb = 255;
for (int ix = xini[i]; ix <= xend[i]; ix++)
for (int iy = yini[i]; iy <= yend[i]; iy++)
{
src.SetXY(ix, iy);
if (src.R > maxr) maxr = src.R;
if (src.R < minr) minr = src.R;
if (src.G > maxg) maxg = src.G;
if (src.G < ming) ming = src.G;
if (src.B > maxb) maxb = src.B;
if (src.B < minb) minb = src.B;
}
vr[i] = maxr - minr;
vg[i] = maxg - ming;
vb[i] = maxb - minb;
v[i] = vr[i] + vg[i] + vb[i];
}
min = 1000; indx = 0;
for (int i = 0; i <= 3; i++)
if (v[i] < min) { min = v[i]; indx = i; }
r = g = b = 0;
for (int ix = xini[indx]; ix <= xend[indx]; ix++)
for (int iy = yini[indx]; iy <= yend[indx]; iy++)
{
src.SetXY(ix, iy);
r += src.R;
g += src.G;
b += src.B;
}
dst.SetXY(x, y);
t = Math.Max(0.6d, (255d - (double)vr[indx]) / 255d);
dst.R = AdjustByte(t * (r / num) + (1d - t) * dst.R);
t = Math.Max(0.6d, (255d - (double)vg[indx]) / 255d);
dst.G = AdjustByte(t * (g / num) + (1d - t) * dst.G);
t = Math.Max(0.6d, (255d - (double)vb[indx]) / 255d);
dst.B = AdjustByte(t * (b / num) + (1d - t) * dst.B);
}
CallDispose(dst, src, tmp);
return true;
}
public static bool HistoStretch24(ref Bitmap bmp, params double[] limit)
{
if (bmp.PixelFormat != PixelFormat.Format24bppRgb)
return false;
int w = bmp.Width;
int h = bmp.Height;
double stretchfactor = 1.00;
int threshold = (int)(w * h * 0.015);
if (limit.Length != 0) threshold = (int)(w * h * limit[0] / 100);
int hue, sat, lum, lt, ht;
byte rr, gg, bb;
double originalrange, stretchedrange, scalefactor;
int[] hist = new int[256];
BmpProc24 src = new BmpProc24(bmp);
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
src.SetXY(x, y);
RGBToHSL(src.R, src.G, src.B, out hue, out sat, out lum);
hist[lum]++;
}
lt = 0;
for (int i = 0; i < 256; i++)
{
lt += hist[i];
if (lt > threshold)
{
lt = i;
break;
}
}
ht = 0;
for (int i = 255; i >= 0; i--)
{
ht += hist[i];
if (ht > threshold)
{
ht = i;
break;
}
}
originalrange = ht - lt + 1;
stretchedrange = originalrange + stretchfactor * (255 - originalrange);
scalefactor = stretchedrange / originalrange;
for (int i = 0; i < 256; i++)
hist[i] = AdjustByte(scalefactor * (i - lt));
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
src.SetXY(x, y);
RGBToHSL(src.R, src.G, src.B, out hue, out sat, out lum);
lum = hist[lum];
HSLToRGB(hue, sat, lum, out rr, out gg, out bb);
src.R = rr;
src.G = gg;
src.B = bb;
}
src.Dispose();
return true;
}
public static bool DrawFramedAlpha(Bitmap dstBmp, Bitmap srcBmp,
int dstX, int dstY)
{
if (dstBmp.PixelFormat != PixelFormat.Format24bppRgb) return false;
if (srcBmp.PixelFormat != PixelFormat.Format24bppRgb) return false;
int dw = dstBmp.Width;
int dh = dstBmp.Height;
int sw = srcBmp.Width;
int sh = srcBmp.Height;
double pi = Math.PI;
double f;
BmpProc24 dst = new BmpProc24(dstBmp);
BmpProc24 src = new BmpProc24(srcBmp);
for (int y = 0; y < sh; y++)
{
if ((y + dstY < 0) | (y + dstY > dh - 1)) continue;
for (int x = 0; x < sw; x++)
{
if ((x + dstX < 0) | (x + dstX > dw - 1)) continue;
f = Math.Sin(y * pi / sh) * Math.Sin(x * pi / sw);
dst.SetXY(x + dstX, y + dstY);
src.SetXY(x, y);
dst.R = (byte)((1f - f) * dst.R + f * src.R);
dst.G = (byte)((1f - f) * dst.G + f * src.G);
dst.B = (byte)((1f - f) * dst.B + f * src.B);
}
}
CallDispose(src, dst);
return true;
}
public static bool Contour(ref Bitmap bmp, bool bStretch, bool b24bit)
{
if (bmp.PixelFormat != PixelFormat.Format24bppRgb)
return false;
int w = bmp.Width;
int h = bmp.Height;
Rectangle rct = new Rectangle(0, 0, w - 1, h - 1);
double[] dis = new double[4];
int[] ix = new int[4];
int[] iy = new int[4];
double max;
double dd = 1.732d;
byte r, g, b;
Bitmap tmp = new Bitmap(w, h, PixelFormat.Format8bppIndexed);
SetGrayPalette(tmp);
BmpProc24 src = new BmpProc24(bmp);
BmpProc8 dst = new BmpProc8(tmp);
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
src.SetXY(x, y);
r = src.R; g = src.G; b = src.B;
ix[0] = x + 1; iy[0] = y - 1; // upper-right
ix[1] = x + 1; iy[1] = y; // right
ix[2] = x + 1; iy[2] = y + 1; // lower-right
ix[3] = x; iy[3] = y + 1; // lower
for (int i = 0; i < 4; i++)
if (rct.Contains(ix[i], iy[i]))
{
src.SetXY(ix[i], iy[i]);
dis[i] = (src.R - r) * (src.R - r) +
(src.G - g) * (src.G - g) +
(src.B - b) * (src.B - b);
}
else
dis[i] = 0d;
max = 0;
for (int i = 0; i < 4; i++)
if (dis[i] > max) max = dis[i];
dst[x, y] = AdjustByte(255d - Math.Sqrt(max) / dd);
}
CallDispose(dst, src);
if (bStretch) HistoStretch(ref tmp);
if (b24bit)
{
Graphics gr = Graphics.FromImage(bmp);
gr.DrawImageUnscaled(tmp, 0, 0);
gr.Dispose();
tmp.Dispose();
}
else
{
bmp.Dispose();
bmp = tmp;
}
return true;
}
public static bool Radiance(ref Bitmap bmp, double factor, int cx, int cy)
{
if (bmp.PixelFormat != PixelFormat.Format24bppRgb)
return false;
int w = bmp.Width;
int h = bmp.Height;
double r, r1, a;
int f, rr, gg, bb, xx, yy, count;
Bitmap tmp = bmp.Clone() as Bitmap;
BmpProc24 src = new BmpProc24(tmp);
BmpProc24 dst = new BmpProc24(bmp);
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
r = Math.Sqrt((x - cx) * (x - cx) + (y - cy) * (y - cy));
a = Math.Atan2(y - cy, x - cx); // radian
f = (int)(factor * r * 0.1);
if (f < 1) continue;
rr = gg = bb = count = 0;
for (int i = -f; i <= 0; i++)
{
r1 = r + i;
xx = (int)(r1 * Math.Cos(a) + cx);
yy = (int)(r1 * Math.Sin(a) + cy);
if ((xx < 0) | (xx > w - 1)) continue;
if ((yy < 0) | (yy > h - 1)) continue;
src.SetXY(xx, yy);
rr += src.R;
gg += src.G;
bb += src.B;
count++;
}
dst.SetXY(x, y);
dst.R = (byte)(rr / count);
dst.G = (byte)(gg / count);
dst.B = (byte)(bb / count);
}
CallDispose(dst, src, tmp);
return true;
}
public static bool KuwaharaOilPaint(ref Bitmap bmp, int block)
{
if (bmp.PixelFormat != PixelFormat.Format24bppRgb)
return false;
if ((block < 1) | (block > 10)) return false;
int w = bmp.Width;
int h = bmp.Height;
int num = (block + 1) * (block + 1);
int[] v = new int[4];
Point[] evP = new Point[4];
Rectangle rct = new Rectangle(0, 0, w - 1, h - 1);
int[] xini = new int[4];
int[] xend = new int[4];
int[] yini = new int[4];
int[] yend = new int[4];
int r, g, b, maxr, maxg, maxb, minr, ming, minb, indx, min;
int[] rh = new int[16];
int[] gh = new int[16];
int[] bh = new int[16];
int rindx, gindx, bindx, countr, countg, countb;
Bitmap tmp = bmp.Clone() as Bitmap;
BmpProc24 src = new BmpProc24(tmp);
BmpProc24 dst = new BmpProc24(bmp);
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
evP[0].X = x - block; evP[0].Y = y - block; // upper-left
xini[0] = x - block; xend[0] = x;
yini[0] = y - block; yend[0] = y;
evP[1].X = x + block; evP[1].Y = y - block; // upper-right
xini[1] = x; xend[1] = x + block;
yini[1] = y - block; yend[1] = y;
evP[2].X = x + block; evP[2].Y = y + block; // lower-right
xini[2] = x; xend[2] = x + block;
yini[2] = y; yend[2] = y + block;
evP[3].X = x - block; evP[3].Y = y + block; // lower-left
xini[3] = x - block; xend[3] = x;
yini[3] = y; yend[3] = y + block;
for (int i = 0; i <= 3; i++)
{
v[i] = 1000;
if (!rct.Contains(evP[i])) continue;
maxr = maxg = maxb = 0; minr = ming = minb = 255;
for (int ix = xini[i]; ix <= xend[i]; ix++)
for (int iy = yini[i]; iy <= yend[i]; iy++)
{
src.SetXY(ix, iy);
if (src.R > maxr) maxr = src.R;
if (src.R < minr) minr = src.R;
if (src.G > maxg) maxg = src.G;
if (src.G < ming) ming = src.G;
if (src.B > maxb) maxb = src.B;
if (src.B < minb) minb = src.B;
}
v[i] = (maxr - minr) + (maxg - ming) + (maxb - minb);
}
min = 1000; indx = 0;
for (int i = 0; i <= 3; i++)
if (v[i] < min) { min = v[i]; indx = i; }
maxr = maxg = maxb = -1;
for (int i = 0; i <= 15; i++) { rh[i] = gh[i] = bh[i] = 0; }
for (int ix = xini[indx]; ix <= xend[indx]; ix++)
for (int iy = yini[indx]; iy <= yend[indx]; iy++)
{
src.SetXY(ix, iy);
rh[src.R >> 4]++;
gh[src.G >> 4]++;
bh[src.B >> 4]++;
}
rindx = gindx = bindx = 0;
for (int i = 0; i <= 15; i++)
{
if (maxr < rh[i]) { maxr = rh[i]; rindx = i; }
if (maxg < gh[i]) { maxg = gh[i]; gindx = i; }
if (maxb < bh[i]) { maxb = bh[i]; bindx = i; }
}
r = g = b = countr = countg = countb = 0;
for (int ix = xini[indx]; ix <= xend[indx]; ix++)
for (int iy = yini[indx]; iy <= yend[indx]; iy++)
{
src.SetXY(ix, iy);
if ((src.R >> 4) == rindx)
{ r += src.R; countr++; }
if ((src.G >> 4) == gindx)
{ g += src.G; countg++; }
if ((src.B >> 4) == bindx)
{ b += src.B; countb++; }
}
dst.SetXY(x, y);
dst.R = (byte)(r / countr);
dst.G = (byte)(g / countg);
dst.B = (byte)(b / countb);
}
CallDispose(dst, src, tmp);
return true;
}
public static bool Rank(ref Bitmap bmp, int area, RankOp ro)
{
if (bmp.PixelFormat != PixelFormat.Format24bppRgb)
return false;
if ((area < 1) | (area > 10)) return false;
int w = bmp.Width;
int h = bmp.Height;
int num = (2 * area + 1) * (2 * area + 1);
byte rmax, gmax, bmax, rmin, gmin, bmin;
Bitmap tmp = (Bitmap)bmp.Clone();
BmpProc24 src = new BmpProc24(tmp);
BmpProc24 dst = new BmpProc24(bmp);
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
rmax = gmax = bmax = 0;
rmin = gmin = bmin = 255;
for (int iy = y - area; iy <= y + area; iy++)
for (int ix = x - area; ix <= x + area; ix++)
{
if ((ix < 0) | (ix > w - 1)) continue;
if ((iy < 0) | (iy > h - 1)) continue;
src.SetXY(ix, iy);
switch (ro)
{
case RankOp.Max:
rmax = Math.Max(rmax, src.R);
gmax = Math.Max(gmax, src.G);
bmax = Math.Max(bmax, src.B);
break;
case RankOp.Mid:
rmax = Math.Max(rmax, src.R);
gmax = Math.Max(gmax, src.G);
bmax = Math.Max(bmax, src.B);
rmin = Math.Min(rmin, src.R);
gmin = Math.Min(gmin, src.G);
bmin = Math.Min(bmin, src.B);
break;
case RankOp.Min:
rmin = Math.Min(rmin, src.R);
gmin = Math.Min(gmin, src.G);
bmin = Math.Min(bmin, src.B);
break;
}
}
dst.SetXY(x, y);
switch (ro)
{
case RankOp.Max:
dst.R = rmax;
dst.G = gmax;
dst.B = bmax;
break;
case RankOp.Mid:
dst.R = ImageUtils.AdjustByte((rmax + rmin) / 2);
dst.G = ImageUtils.AdjustByte((gmax + gmin) / 2);
dst.B = ImageUtils.AdjustByte((bmax + bmin) / 2);
break;
case RankOp.Min:
dst.R = rmin;
dst.G = gmin;
dst.B = bmin;
break;
}
}
CallDispose(dst, src, tmp);
return true;
}
public static bool Median(ref Bitmap bmp, int area)
{
if (bmp.PixelFormat != PixelFormat.Format24bppRgb)
return false;
if ((area < 1) | (area > 5)) return false;
int w = bmp.Width;
int h = bmp.Height;
int num = (2 * area + 1) * (2 * area + 1);
int mid = num / 2; // mid-index of zero starting array
byte[] rr = new byte[num];
byte[] gg = new byte[num];
byte[] bb = new byte[num];
int indx;
Bitmap tmp = (Bitmap)bmp.Clone();
BmpProc24 src = new BmpProc24(tmp);
BmpProc24 dst = new BmpProc24(bmp);
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
indx = 0;
for (int iy = y - area; iy <= y + area; iy++)
for (int ix = x - area; ix <= x + area; ix++)
{
if ((ix < 0) | (ix > w - 1)) continue;
if ((iy < 0) | (iy > h - 1)) continue;
src.SetXY(ix, iy);
rr[indx] = src.R;
gg[indx] = src.G;
bb[indx] = src.B;
indx++;
}
Array.Sort(rr, 0, indx);
Array.Sort(gg, 0, indx);
Array.Sort(bb, 0, indx);
if (indx == num) indx = mid; else indx = indx / 2;
dst.SetXY(x, y);
dst.R = rr[indx];
dst.G = gg[indx];
dst.B = bb[indx];
}
CallDispose(dst, src, tmp);
return true;
}
public static bool Scramble(ref Bitmap bmp, int zone)
{
if (bmp.PixelFormat != PixelFormat.Format24bppRgb)
return false;
if ((zone < 2) | (zone > 30)) return false;
int w = bmp.Width;
int h = bmp.Height;
int num = zone * zone;
byte[] rr = new byte[num];
byte[] gg = new byte[num];
byte[] bb = new byte[num];
int[] ra = new int[num];
int indx;
Random rnd = new Random();
int j, t;
BmpProc24 src = new BmpProc24(bmp);
for (int y = 0; y < h - 1; y += zone)
for (int x = 0; x < w - 1; x += zone)
{
indx = 0;
for (int iy = y; iy < y + zone; iy++)
for (int ix = x; ix < x + zone; ix++)
{
if ((ix > w - 1) | (iy > h - 1)) continue;
src.SetXY(ix, iy);
rr[indx] = src.R;
gg[indx] = src.G;
bb[indx] = src.B;
indx++;
}
for (int i = 0; i < indx; i++) ra[i] = i;
for (int i = 0; i < indx - 1; i++)
{
j = rnd.Next(i, indx);
t = ra[i];
ra[i] = ra[j];
ra[j] = t;
}
indx = 0;
for (int iy = y; iy < y + zone; iy++)
for (int ix = x; ix < x + zone; ix++)
{
if ((ix > w - 1) | (iy > h - 1)) continue;
src.SetXY(ix, iy);
src.R = rr[ra[indx]];
src.G = gg[ra[indx]];
src.B = bb[ra[indx]];
indx++;
}
}
src.Dispose();
return true;
}
public static bool MotionBlur(ref Bitmap bmp, int range, double angle)
{
if (bmp.PixelFormat != PixelFormat.Format24bppRgb)
return false;
if (range < 2) return false;
int w = bmp.Width;
int h = bmp.Height;
angle += 180;
double sn = Math.Sin(angle * Math.PI / 180d);
double cs = Math.Cos(angle * Math.PI / 180d);
int[] dx = new int[range];
int[] dy = new int[range];
for (int i = 0; i < range; i++)
{
dx[i] = (int)(cs * (i + 1) + 0.5d);
dy[i] = (int)(sn * (i + 1) + 0.5d);
}
int xx, yy, rr, gg, bb, count;
Bitmap tmp = bmp.Clone() as Bitmap;
BmpProc24 src = new BmpProc24(tmp);
BmpProc24 dst = new BmpProc24(bmp);
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
src.SetXY(x, y);
rr = src.R;
gg = src.G;
bb = src.B;
count = 1;
for (int i = 1; i <= range; i++)
{
xx = x + dx[i - 1];
yy = y + dy[i - 1];
if ((xx < 0) | (xx > w - 1) | (yy < 0) | (yy > h - 1))
continue;
src.SetXY(xx, yy);
rr += src.R;
gg += src.G;
bb += src.B;
count++;
}
dst.SetXY(x, y);
dst.R = (byte)(rr / count);
dst.G = (byte)(gg / count);
dst.B = (byte)(bb / count);
}
CallDispose(dst, src, tmp);
return true;
}
public static bool Sobel(ref Bitmap bmp, bool fGrayScale)
{
if (bmp.PixelFormat != PixelFormat.Format24bppRgb)
return false;
int w = bmp.Width;
int h = bmp.Height;
int[,] hmask = { {-1, -2, -1},
{ 0, 0, 0},
{ 1, 2, 1}};
int[,] vmask = { {-1, 0, 1},
{-2, 0, 2},
{-1, 0, 1}};
int xx, yy, mx, my;
double rv, gv, bv, rh, gh, bh;
Bitmap tmp = (Bitmap)bmp.Clone();
BmpProc24 src = new BmpProc24(tmp);
BmpProc24 dst = new BmpProc24(bmp);
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
rv = gv = bv = rh = gh = bh = 0;
for (int iy = y - 1; iy <= y + 1; iy++)
for (int ix = x - 1; ix <= x + 1; ix++)
{
mx = ix - x + 1; my = iy - y + 1;
xx = ix; yy = iy;
if ((ix < 0) | (ix > w - 1)) xx = x;
if ((iy < 0) | (iy > h - 1)) yy = y;
src.SetXY(xx, yy);
rv += src.R * vmask[mx, my];
gv += src.G * vmask[mx, my];
bv += src.B * vmask[mx, my];
rh += src.R * hmask[mx, my];
gh += src.G * hmask[mx, my];
bh += src.B * hmask[mx, my];
}
dst.SetXY(x, y);
dst.R = AdjustByte(Math.Sqrt(rv * rv + rh * rh));
dst.G = AdjustByte(Math.Sqrt(gv * gv + gh * gh));
dst.B = AdjustByte(Math.Sqrt(bv * bv + bh * bh));
}
CallDispose(dst, src, tmp);
if (fGrayScale)
return GrayScale(ref bmp);
else
return true;
}
public static bool OilPaint(ref Bitmap bmp, int zone)
{
if (bmp.PixelFormat != PixelFormat.Format24bppRgb)
return false;
int w = bmp.Width;
int h = bmp.Height;
int[] rh = new int[16];
int[] gh = new int[16];
int[] bh = new int[16];
int rmax, gmax, bmax, rindx, gindx, bindx;
int r, g, b, countr, countg, countb;
Bitmap tmp = (Bitmap)bmp.Clone();
BmpProc24 src = new BmpProc24(tmp);
BmpProc24 dst = new BmpProc24(bmp);
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
rmax = gmax = bmax = -1;
rindx = gindx = bindx = 0;
for (int i = 0; i <= 15; i++)
{ rh[i] = gh[i] = bh[i] = 0; }
for (int iy = y - zone; iy <= y + zone; iy++)
for (int ix = x - zone; ix <= x + zone; ix++)
{
if ((iy < 0) | (iy > h - 1)) continue;
if ((ix < 0) | (ix > w - 1)) continue;
src.SetXY(ix, iy);
rh[src.R >> 4]++;
gh[src.G >> 4]++;
bh[src.B >> 4]++;
}
for (int i = 0; i <= 15; i++)
{
if (rmax < rh[i]) { rmax = rh[i]; rindx = i; }
if (gmax < gh[i]) { gmax = gh[i]; gindx = i; }
if (bmax < bh[i]) { bmax = bh[i]; bindx = i; }
}
r = g = b = countr = countg = countb = 0;
for (int iy = y - zone; iy <= y + zone; iy++)
for (int ix = x - zone; ix <= x + zone; ix++)
{
if ((iy < 0) | (iy > h - 1)) continue;
if ((ix < 0) | (ix > w - 1)) continue;
src.SetXY(ix, iy);
if ((src.R >> 4) == rindx) { r += src.R; countr++; }
if ((src.G >> 4) == gindx) { g += src.G; countg++; }
if ((src.B >> 4) == bindx) { b += src.B; countb++; }
}
dst.SetXY(x, y);
dst.R = (byte)(r / countr);
dst.G = (byte)(g / countg);
dst.B = (byte)(b / countb);
}
CallDispose(dst, src, tmp);
return true;
}
public static bool BathroomWindow1(ref Bitmap bmp,
int zone, BathroomWindowMode wm)
{
if (bmp.PixelFormat != PixelFormat.Format24bppRgb)
return false;
if ((zone < 2) | (zone > 100)) return false;
int w = bmp.Width;
int h = bmp.Height;
int rnd = zone * 2 + 1;
int xx, yy;
Bitmap tmp = bmp.Clone() as Bitmap;
BmpProc24 src = new BmpProc24(tmp);
BmpProc24 dst = new BmpProc24(bmp);
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
xx = x; yy = y;
switch (wm)
{
case BathroomWindowMode.bwVertical:
xx = x + (x % rnd) - zone;
break;
case BathroomWindowMode.bwHorizontal:
yy = y + (y % rnd) - zone;
break;
case BathroomWindowMode.bwBoth:
xx = x + (x % rnd) - zone;
yy = y + (y % rnd) - zone;
break;
}
if ((xx > 0) & (xx < w) & (yy > 0) & (yy < h))
{
dst.SetXY(x, y);
src.SetXY(xx, yy);
dst.R = src.R;
dst.G = src.G;
dst.B = src.B;
}
}
CallDispose(dst, src, tmp);
return true;
}
public static bool BathroomWindow2(ref Bitmap bmp, int zone,
int cx, int cy)
{
if (bmp.PixelFormat != PixelFormat.Format24bppRgb)
return false;
if ((zone < 2) | (zone > 100)) return false;
int w = bmp.Width;
int h = bmp.Height;
int rnd = zone;
if ((cx == 0) & (cy == 0))
{
cx = w / 2;
cy = h / 2;
}
int xx, yy;
double a, r;
Bitmap tmp = bmp.Clone() as Bitmap;
BmpProc24 src = new BmpProc24(tmp);
BmpProc24 dst = new BmpProc24(bmp);
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
r = Math.Sqrt((x - cx) * (x - cx) + (y - cy) * (y - cy));
a = Math.Atan2(y - cy, x - cx); // radian
xx = x + ((int)(((a + Math.PI) * 180 / Math.PI
+ 0.2d * r)) % rnd) + zone;
yy = y;
if ((xx > 0) & (xx < w) & (yy > 0) & (yy < h))
{
dst.SetXY(x, y);
src.SetXY(xx, yy);
dst.R = src.R;
dst.G = src.G;
dst.B = src.B;
}
}
CallDispose(dst, src, tmp);
return true;
}