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#include "holo.h" |
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#include "view.h" |
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#include "random.h" |
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#ifndef DEPS |
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#define DEPS 0.02 /* depth epsilon */ |
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int d; |
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register int4 i, p; |
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|
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if (n <= 0) |
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if (n <= 0) { |
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#ifdef DEBUG |
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error(WARNING, "neighborless sample in kill_occl"); |
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#endif |
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return(1); |
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} |
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p = v*hres + h; |
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forequad[0][0] = forequad[0][1] = forequad[1][0] = forequad[1][1] = 0; |
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for (i = n; i--; ) { |
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int |
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grow_samp(h, v, nl, n) /* grow sample point appropriately */ |
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smooth_samp(h, v, nl, n) /* grow sample point smoothly */ |
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int h, v; |
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register short nl[NNEIGH][2]; |
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int n; |
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int dis[NNEIGH], ndis; |
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COLOR mykern[MAXRAD2]; |
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int4 maxr2; |
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double w, d; |
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double d; |
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register int4 p, r2; |
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int i, r, maxr, h2, v2; |
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} |
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if (i >= 0) continue; /* outside edge */ |
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addcolor(mypixel[v2*hres+h2], mykern[r2]); |
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myweight[v2*hres+h2] += pixWeight[r2] * |
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myweight[v*hres+h]; |
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myweight[v2*hres+h2] += pixWeight[r2] * myweight[p]; |
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} |
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} |
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return(1); |
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} |
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pixFlush() /* done with beams -- flush pixel values */ |
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> |
int |
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random_samp(h, v, nl, n, rf) /* grow sample point noisily */ |
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int h, v; |
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register short nl[NNEIGH][2]; |
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int n; |
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> |
double *rf; |
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{ |
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< |
reset_flags(); /* set occupancy flags */ |
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< |
meet_neighbors(kill_occl); /* eliminate occlusion errors */ |
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< |
reset_flags(); /* reset occupancy flags */ |
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> |
double tv = *rf * (1.-1./NNEIGH); |
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> |
int4 maxr2; |
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> |
register int4 p, r2; |
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> |
register int i; |
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> |
int maxr, h2, v2; |
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> |
COLOR ctmp; |
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> |
|
| 221 |
> |
if (n <= 0) |
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> |
return(1); |
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> |
p = v*hres + h; /* compute kernel radius */ |
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> |
maxr2 = (h-nl[n-1][0])*(h-nl[n-1][0]) + (v-nl[n-1][1])*(v-nl[n-1][1]); |
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> |
DCHECK(maxr2>=MAXRAD2, CONSISTENCY, "out of range neighbor"); |
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> |
maxr = isqrt(maxr2); |
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> |
/* sample kernel */ |
| 228 |
> |
for (v2 = v-maxr; v2 <= v+maxr; v2++) { |
| 229 |
> |
if (v2 < 0) v2 = 0; |
| 230 |
> |
else if (v2 >= vres) break; |
| 231 |
> |
for (h2 = h-maxr; h2 <= h+maxr; h2++) { |
| 232 |
> |
if (h2 < 0) h2 = 0; |
| 233 |
> |
else if (h2 >= hres) break; |
| 234 |
> |
r2 = (h2-h)*(h2-h) + (v2-v)*(v2-v); |
| 235 |
> |
if (r2 > maxr2) continue; |
| 236 |
> |
if (CHK4(pixFlags, v2*hres+h2)) |
| 237 |
> |
continue; /* occupied */ |
| 238 |
> |
if (frandom() < tv) { /* use neighbor instead? */ |
| 239 |
> |
i = random() % n; |
| 240 |
> |
r2 = nl[i][1]*hres + nl[i][0]; |
| 241 |
> |
copycolor(ctmp, mypixel[r2]); |
| 242 |
> |
r2 = (h2-nl[i][0])*(h2-nl[i][0]) + |
| 243 |
> |
(v2-nl[i][1])*(v2-nl[i][1]); |
| 244 |
> |
if (r2 < MAXRAD2) { |
| 245 |
> |
scalecolor(ctmp, pixWeight[r2]); |
| 246 |
> |
addcolor(mypixel[v2*hres+h2], ctmp); |
| 247 |
> |
myweight[v2*hres+h2] += pixWeight[r2] * |
| 248 |
> |
myweight[nl[i][1]*hres+nl[i][0]]; |
| 249 |
> |
continue; |
| 250 |
> |
} |
| 251 |
> |
} |
| 252 |
> |
/* use central sample */ |
| 253 |
> |
copycolor(ctmp, mypixel[p]); |
| 254 |
> |
scalecolor(ctmp, pixWeight[r2]); |
| 255 |
> |
addcolor(mypixel[v2*hres+h2], ctmp); |
| 256 |
> |
myweight[v2*hres+h2] += pixWeight[r2] * myweight[p]; |
| 257 |
> |
} |
| 258 |
> |
} |
| 259 |
> |
return(1); |
| 260 |
> |
} |
| 261 |
> |
|
| 262 |
> |
|
| 263 |
> |
pixFinish(ransamp) /* done with beams -- compute pixel values */ |
| 264 |
> |
double ransamp; |
| 265 |
> |
{ |
| 266 |
|
if (pixWeight[0] <= FTINY) |
| 267 |
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init_wfunc(); /* initialize weighting function */ |
| 268 |
< |
meet_neighbors(grow_samp); /* grow valid samples over image */ |
| 268 |
> |
reset_flags(); /* set occupancy flags */ |
| 269 |
> |
meet_neighbors(kill_occl,NULL); /* eliminate occlusion errors */ |
| 270 |
> |
reset_flags(); /* reset occupancy flags */ |
| 271 |
> |
if (ransamp >= 0.) /* spread samples over image */ |
| 272 |
> |
meet_neighbors(random_samp,&ransamp); |
| 273 |
> |
else |
| 274 |
> |
meet_neighbors(smooth_samp,NULL); |
| 275 |
|
free((char *)pixFlags); /* free pixel flags */ |
| 276 |
|
pixFlags = NULL; |
| 277 |
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} |
| 294 |
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|
| 295 |
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init_wfunc() /* initialize weighting function */ |
| 296 |
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{ |
| 233 |
– |
register int i, j; |
| 297 |
|
register int4 r2; |
| 298 |
|
register double d; |
| 299 |
|
|
| 300 |
< |
for (i = 1; i <= MAXRAD; i++) |
| 301 |
< |
for (j = 0; j <= i; j++) { |
| 302 |
< |
r2 = i*i + j*j; |
| 303 |
< |
if (r2 >= MAXRAD2) break; |
| 304 |
< |
d = sqrt((double)r2); |
| 242 |
< |
pixWeight[r2] = G0NORM/d; |
| 243 |
< |
isqrttab[r2] = d + 0.99; |
| 244 |
< |
} |
| 300 |
> |
for (r2 = MAXRAD2; --r2; ) { |
| 301 |
> |
d = sqrt((double)r2); |
| 302 |
> |
pixWeight[r2] = G0NORM/d; |
| 303 |
> |
isqrttab[r2] = d + 0.99; |
| 304 |
> |
} |
| 305 |
|
pixWeight[0] = 1.; |
| 306 |
|
isqrttab[0] = 0; |
| 307 |
|
} |
| 348 |
|
} |
| 349 |
|
|
| 350 |
|
|
| 351 |
< |
meet_neighbors(nf) /* run through samples and their neighbors */ |
| 351 |
> |
meet_neighbors(nf, dp) /* run through samples and their neighbors */ |
| 352 |
|
int (*nf)(); |
| 353 |
+ |
char *dp; |
| 354 |
|
{ |
| 355 |
|
short ln[NNEIGH][2]; |
| 356 |
|
int h, v, n, v2; |
| 374 |
|
if (!CHK4(pixFlags, v*hres+h)) |
| 375 |
|
continue; /* no one home */ |
| 376 |
|
n = findneigh(ln, h, v, rnl); |
| 377 |
< |
(*nf)(h, v, ln, n); /* call on neighbors */ |
| 377 |
> |
(*nf)(h, v, ln, n, dp); /* call on neighbors */ |
| 378 |
|
} |
| 379 |
|
if (++v >= vres) /* reinitialize row list */ |
| 380 |
|
break; |
