** This is part of the CTSim program
** Copyright (C) 1983-2000 Kevin Rosenberg
**
-** $Id: imagefile.cpp,v 1.9 2000/07/15 08:36:13 kevin Exp $
+** $Id: imagefile.cpp,v 1.13 2000/11/22 06:43:21 kevin Exp $
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License (version 2) as
return 0;
#if HAVE_G2_H
- int pens [nx * ny * scale * scale ];
+ int* pPens = new int [nx * ny * scale * scale ];
double view_scale = 255 / (pmax - pmin);
int id_X11 = g2_open_X11 (nx * scale, ny * scale);
grayscale[i] = g2_ink (id_X11, cval, cval, cval);
}
- for (int i= 0, iy = ny - 1; iy >= 0; iy--) {
- for (int ix = 0; ix < nx; ix++) {
- int cval = static_cast<int>((v[ix][iy] - pmin) * view_scale);
- if (cval < 0)
- cval = 0;
- else if (cval > 255)
- cval = 255;
- pens[i++] = grayscale[cval];
+ for (int iy = ny - 1; iy >= 0; iy--) {
+ int iRowPos = ((ny - 1 - iy) * scale) * (nx * scale);
+ for (int ix = 0; ix < nx; ix++) {
+ int cval = static_cast<int>((v[ix][iy] - pmin) * view_scale);
+ if (cval < 0)
+ cval = 0;
+ else if (cval > 255)
+ cval = 255;
+ for (int sy = 0; sy < scale; sy++)
+ for (int sx = 0; sx < scale; sx++)
+ pPens[iRowPos+(sy * nx * scale)+(sx + (ix * scale))] = grayscale[cval];
}
}
- g2_image (id_X11, 0., 0., nx, ny, pens);
+ g2_image (id_X11, 0., 0., nx * scale, ny * scale, pPens);
+ delete pPens;
return (id_X11);
-
+#else
+ return 0;
#endif
}
}
mean /= (nx * ny);
- static const int nbin = 256;
+ static const int nbin = 1024;
int hist[ nbin ] = {0};
double spread = max - min;
mode = 0;
}
mode = (max_binindex * spread / (nbin - 1)) + min;
-
- median = 0.;
+
+ int nPixels = nx * ny;
+ slist<double> vecImage;
+ for (int ix = 0; ix < nx; ix++)
+ for (int iy = 0; iy < ny; iy++)
+ vecImage.push_front (v[ix][iy]);
+ vecImage.sort();
+ slist<double>::const_iterator iter = vecImage.begin();
+ for (int i = 0; i < (nPixels / 2) - 1; i++)
+ iter++; // Advance iterator to (nPixels / 2) - 1;
+
+ if (nPixels % 2) { // Odd
+ iter++;
+ median = *iter;
+ } else // Even
+ median = (*iter++ + *iter) / 2;
}
}
for (int ir = 0; ir < nycell; ir++) {
for (int ic = 0; ic < nx * nxcell; ic++)
- fprintf(fp, "%c ", rowp[ic]);
+ fprintf(fp, "%c", rowp[ic]);
}
}
ImageFileArray v = getArray();
unsigned char rowp [nx * nxcell];
- if (rowp == NULL)
- return;
if ((fp = fopen (outfile, "wb")) == NULL)
return;