| 211 |
|
int n; |
| 212 |
|
double *rf; |
| 213 |
|
{ |
| 214 |
< |
float nwt[NNEIGH]; |
| 214 |
> |
double tv = *rf * (1.-1./NNEIGH); |
| 215 |
|
int4 maxr2; |
| 216 |
|
register int4 p, r2; |
| 217 |
|
register int i; |
| 224 |
|
maxr2 = (h-nl[n-1][0])*(h-nl[n-1][0]) + (v-nl[n-1][1])*(v-nl[n-1][1]); |
| 225 |
|
DCHECK(maxr2>=MAXRAD2, CONSISTENCY, "out of range neighbor"); |
| 226 |
|
maxr = isqrt(maxr2); |
| 227 |
– |
/* compute neighbor weights */ |
| 228 |
– |
for (i = n; i--; ) { |
| 229 |
– |
r2 = (nl[i][0]-h)*(nl[i][0]-h) + (nl[i][1]-v)*(nl[i][1]-v); |
| 230 |
– |
nwt[i] = pixWeight[r2]; |
| 231 |
– |
} |
| 227 |
|
/* sample kernel */ |
| 228 |
|
for (v2 = v-maxr; v2 <= v+maxr; v2++) { |
| 229 |
|
if (v2 < 0) v2 = 0; |
| 235 |
|
if (r2 > maxr2) continue; |
| 236 |
|
if (CHK4(pixFlags, v2*hres+h2)) |
| 237 |
|
continue; /* occupied */ |
| 238 |
< |
if (frandom() < *rf) { /* pick neighbor instead */ |
| 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 |
< |
scalecolor(ctmp, nwt[i]); |
| 243 |
< |
addcolor(mypixel[v2*hres+h2], ctmp); |
| 244 |
< |
myweight[v2*hres+h2] += nwt[i] * myweight[r2]; |
| 245 |
< |
continue; |
| 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); |
