25 |
|
short *ringndx; /* ring index table */ |
26 |
|
float *warr; /* array of pixel weights */ |
27 |
|
|
28 |
< |
#define lookgauss(x) gausstable[(int)(10.*(x)+.5)] |
28 |
> |
#define lookgauss(x) gausstable[(int)(20.*(x)+.5)] |
29 |
|
|
30 |
|
static double pickfilt(double p0); |
31 |
|
static void sumans(int px, int py, int rcent, int ccent, double m); |
32 |
|
|
33 |
|
|
34 |
< |
extern void |
34 |
> |
void |
35 |
|
initmask(void) /* initialize gaussian lookup table */ |
36 |
|
{ |
37 |
|
int gtabsiz; |
38 |
|
double gaussN; |
39 |
|
double d; |
40 |
< |
register int x; |
40 |
> |
int x; |
41 |
|
|
42 |
< |
gtabsiz = 111*CHECKRAD*CHECKRAD; |
42 |
> |
gtabsiz = 444*CHECKRAD*CHECKRAD; |
43 |
|
gausstable = (float *)malloc(gtabsiz*sizeof(float)); |
44 |
|
if (gausstable == NULL) |
45 |
|
goto memerr; |
46 |
|
d = x_c*y_r*0.25/(rad*rad); |
47 |
|
gausstable[0] = exp(-d); |
48 |
|
for (x = 1; x < gtabsiz; x++) |
49 |
< |
if (x*0.1 <= d) |
49 |
> |
if (x*0.05 <= d) |
50 |
|
gausstable[x] = gausstable[0]; |
51 |
|
else |
52 |
< |
gausstable[x] = exp(-x*0.1); |
52 |
> |
gausstable[x] = exp(-x*0.05); |
53 |
|
if (obarsize == 0) |
54 |
|
return; |
55 |
|
/* compute integral of filter */ |
81 |
|
} |
82 |
|
|
83 |
|
|
84 |
< |
extern void |
84 |
> |
void |
85 |
|
dobox( /* simple box filter */ |
86 |
|
COLOR csum, |
87 |
|
int xcent, |
93 |
|
int wsum; |
94 |
|
double d; |
95 |
|
int y; |
96 |
< |
register int x, offs; |
97 |
< |
register COLOR *scan; |
96 |
> |
int x, offs; |
97 |
> |
COLOR *scan; |
98 |
|
|
99 |
|
wsum = 0; |
100 |
|
setcolor(csum, 0.0, 0.0, 0.0); |
123 |
|
} |
124 |
|
|
125 |
|
|
126 |
< |
extern void |
126 |
> |
void |
127 |
|
dogauss( /* gaussian filter */ |
128 |
|
COLOR csum, |
129 |
|
int xcent, |
135 |
|
double dy, dx, weight, wsum; |
136 |
|
COLOR ctmp; |
137 |
|
int y; |
138 |
< |
register int x, offs; |
139 |
< |
register COLOR *scan; |
138 |
> |
int x, offs; |
139 |
> |
COLOR *scan; |
140 |
|
|
141 |
|
wsum = FTINY; |
142 |
|
setcolor(csum, 0.0, 0.0, 0.0); |
162 |
|
} |
163 |
|
|
164 |
|
|
165 |
< |
extern void |
165 |
> |
void |
166 |
|
dothresh( /* gaussian threshold filter */ |
167 |
|
int xcent, |
168 |
|
int ycent, |
172 |
|
{ |
173 |
|
double d; |
174 |
|
int r, y, offs; |
175 |
< |
register int c, x; |
176 |
< |
register float *gscan; |
175 |
> |
int c, x; |
176 |
> |
float *gscan; |
177 |
|
/* compute ring sums */ |
178 |
|
memset((char *)ringsum, '\0', (orad+1)*sizeof(float)); |
179 |
|
memset((char *)ringwt, '\0', (orad+1)*sizeof(short)); |
222 |
|
double t, num, denom, avg, wsum; |
223 |
|
double mlimit[2]; |
224 |
|
int ilimit = 4.0/TEPS; |
225 |
< |
register int i; |
225 |
> |
int i; |
226 |
|
/* iterative search for m */ |
227 |
|
mlimit[0] = 1.0; mlimit[1] = orad/rad/CHECKRAD; |
228 |
|
do { |
287 |
|
COLOR pval, ctmp; |
288 |
|
int ksiz, r, offs; |
289 |
|
double pc, pr, norm; |
290 |
< |
register int i, c; |
291 |
< |
register COLOR *scan; |
290 |
> |
int i, c; |
291 |
> |
COLOR *scan; |
292 |
|
/* |
293 |
|
* This normalization method fails at the picture borders because |
294 |
|
* a different number of input pixels contribute there. |
327 |
|
scan = scoutbar[r%obarsize]; |
328 |
|
for (c = ccent-ksiz; c <= ccent+ksiz; c++) { |
329 |
|
offs = c < 0 ? ncols : c >= ncols ? -ncols : 0; |
330 |
< |
if (offs && !wrapfilt) |
330 |
> |
if ((offs != 0) & !wrapfilt) |
331 |
|
continue; |
332 |
|
copycolor(ctmp, pval); |
333 |
|
dx = norm*warr[i++]; |