1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
|
include <imhdr.h>
include <mach.h>
$for (silrdx)
# IMREP -- Replace pixels in an image between lower and upper by value.
procedure imrep$t (im, lower, upper, value, img)
pointer im # Image descriptor
real lower, upper # Range to be replaced
real value # Replacement value
real img # Imaginary value for complex
pointer buf1, buf2
int npix, junk
$if (datatype == sil)
real ilower
$endif
PIXEL floor, ceil, newval
long v1[IM_MAXDIM], v2[IM_MAXDIM]
int imgnl$t(), impnl$t()
$if (datatype == sil)
bool fp_equalr()
$endif
begin
# Setup start vector for sequential reads and writes.
call amovkl (long(1), v1, IM_MAXDIM)
call amovkl (long(1), v2, IM_MAXDIM)
npix = IM_LEN(im, 1)
$if (datatype == x)
newval = complex (value, img)
$else
newval = double (value)
$endif
# If both lower and upper are INDEF then replace all pixels by value.
if (IS_INDEFR (lower) && IS_INDEFR (upper)) {
while (impnl$t (im, buf2, v2) != EOF)
call amovk$t (newval, Mem$t[buf2], npix)
# If lower is INDEF then all pixels below upper are replaced by value.
} else if (IS_INDEFR (lower)) {
$if (datatype == sil)
ceil = int (upper)
$else
ceil = double (upper)
$endif
while (imgnl$t (im, buf1, v1) != EOF) {
junk = impnl$t (im, buf2, v2)
call amov$t (Mem$t[buf1], Mem$t[buf2], npix)
call arle$t (Mem$t[buf2], npix, ceil, newval)
}
# If upper is INDEF then all pixels below upper are replaced by value.
} else if (IS_INDEFR (upper)) {
$if (datatype == sil)
ilower = int (lower)
if (fp_equalr(lower,ilower))
floor = int (lower)
else
floor = int (lower+1.0)
$else
floor = double (lower)
$endif
while (imgnl$t (im, buf1, v1) != EOF) {
junk = impnl$t (im, buf2, v2)
call amov$t (Mem$t[buf1], Mem$t[buf2], npix)
call arge$t (Mem$t[buf2], npix, floor, newval)
}
# Replace pixels between lower and upper by value.
} else {
$if (datatype == sil)
ilower = int (lower)
if (fp_equalr(lower,ilower))
floor = int (lower)
else
floor = int (lower+1.0)
ceil = int (upper)
$else
floor = double (lower)
ceil = double (upper)
$endif
while (imgnl$t (im, buf1, v1) != EOF) {
junk = impnl$t (im, buf2, v2)
call amov$t (Mem$t[buf1], Mem$t[buf2], npix)
call arep$t (Mem$t[buf2], npix, floor, ceil, newval)
}
}
end
# IMRREP -- Replace pixels in an image between lower and upper by value
# and a radius around those pixels.
procedure imrrep$t (im, lower, upper, radius, value, img)
pointer im # Image descriptor
real lower, upper # Range to be replaced
real radius # Radius
real value # Replacement value
real img # Imaginary value for complex
pointer buf, buf1, buf2, ptr
int i, j, k, l, nc, nl, nradius, nbufs
$if (datatype == sil)
real ilower
$endif
PIXEL floor, ceil, newval, val1, val2
$if (datatype == x)
real abs_floor, abs_ceil
$endif
real radius2, y2
long v1[IM_MAXDIM], v2[IM_MAXDIM] # IMIO vectors
int imgnl$t(), impnl$t()
$if (datatype == sil)
bool fp_equalr()
$endif
begin
# Setup start vector for sequential reads and writes.
call amovkl (long(1), v1, IM_MAXDIM)
call amovkl (long(1), v2, IM_MAXDIM)
nc = IM_LEN(im, 1)
if (IM_NDIM(im) > 1)
nl = IM_LEN(im,2)
else
nl = 1
$if (datatype == x)
newval = complex (value, img)
$else
newval = double (value)
$endif
# If both lower and upper are INDEF then replace all pixels by value.
if (IS_INDEFR (lower) && IS_INDEFR (upper)) {
while (impnl$t (im, buf2, v2) != EOF)
call amovk$t (newval, Mem$t[buf2], nc)
return
# If lower is INDEF then all pixels below upper are replaced by value.
} else if (IS_INDEFR (lower)) {
$if (datatype == sil)
floor = -MAX_PIXEL
ceil = int (upper)
$else $if (datatype == x)
floor = 0
ceil = real (upper)
abs_floor = abs (floor)
abs_ceil = abs (ceil)
$else
floor = -MAX_PIXEL
ceil = double (upper)
$endif $endif
# If upper is INDEF then all pixels below upper are replaced by value.
} else if (IS_INDEFR (upper)) {
$if (datatype == sil)
ilower = int (lower)
if (fp_equalr(lower,ilower))
floor = int (lower)
else
floor = int (lower+1.0)
ceil = MAX_PIXEL
$else $if (datatype == x)
floor = real (lower)
ceil = MAX_REAL
abs_floor = abs (floor)
abs_ceil = abs (ceil)
$else
floor = double (lower)
ceil = MAX_PIXEL
$endif $endif
# Replace pixels between lower and upper by value.
} else {
$if (datatype == sil)
ilower = int (lower)
if (fp_equalr(lower,ilower))
floor = int (lower)
else
floor = int (lower+1.0)
ceil = int (upper)
$else $if (datatype == x)
floor = real (lower)
ceil = real (upper)
abs_floor = abs (floor)
abs_ceil = abs (ceil)
$else
floor = double (lower)
ceil = double (upper)
$endif $endif
}
# Initialize buffering.
radius2 = radius * radius
nradius = int (radius)
nbufs = min (1 + 2 * nradius, nl)
call calloc (buf, nc*nbufs, TY_PIXEL)
while (imgnl$t (im, buf1, v1) != EOF) {
j = v1[2] - 1
buf2 = buf + mod (j, nbufs) * nc
do i = 1, nc {
val1 = Mem$t[buf1]
val2 = Mem$t[buf2]
$if (datatype == x)
if ((abs (val1) >= abs_floor) && (abs (val1) <= abs_ceil)) {
$else
if ((val1 >= floor) && (val1 <= ceil)) {
$endif
do k = max(1,j-nradius), min (nl,j+nradius) {
ptr = buf + mod (k, nbufs) * nc - 1
y2 = (k - j) ** 2
do l = max(1,i-nradius), min (nc,i+nradius) {
if ((l-i)**2 + y2 > radius2)
next
Mem$t[ptr+l] = INDEF
}
}
} else {
if (!IS_INDEF(val2))
Mem$t[buf2] = val1
}
buf1 = buf1 + 1
buf2 = buf2 + 1
}
if (j > nradius) {
while (impnl$t (im, buf2, v2) != EOF) {
k = v2[2] - 1
buf1 = buf + mod (k, nbufs) * nc
do i = 1, nc {
val1 = Mem$t[buf1]
if (IS_INDEF(Mem$t[buf1]))
Mem$t[buf2] = newval
else
Mem$t[buf2] = val1
Mem$t[buf1] = 0.
buf1 = buf1 + 1
buf2 = buf2 + 1
}
if (j != nl)
break
}
}
}
call mfree (buf, TY_PIXEL)
end
# AREP -- Replace array values which are between floor and ceil by value.
procedure arep$t (a, npts, floor, ceil, newval)
PIXEL a[npts] # Input arrays
int npts # Number of points
PIXEL floor, ceil # Replacement limits
PIXEL newval # Replacement value
int i
$if (datatype == x)
real abs_floor
real abs_ceil
$endif
begin
$if (datatype == x)
abs_floor = abs (floor)
abs_ceil = abs (ceil)
$endif
do i = 1, npts {
$if (datatype == x)
if ((abs (a[i]) >= abs_floor) && (abs (a[i]) <= abs_ceil))
$else
if ((a[i] >= floor) && (a[i] <= ceil))
$endif
a[i] = newval
}
end
# ARLE -- If A[i] is less than or equal to FLOOR replace by NEWVAL.
procedure arle$t (a, npts, floor, newval)
PIXEL a[npts]
int npts
PIXEL floor, newval
int i
$if (datatype == x)
real abs_floor
$endif
begin
$if (datatype == x)
abs_floor = abs (floor)
$endif
do i = 1, npts
$if (datatype == x)
if (abs (a[i]) <= abs_floor)
$else
if (a[i] <= floor)
$endif
a[i] = newval
end
# ARGE -- If A[i] is greater than or equal to CEIL replace by NEWVAL.
procedure arge$t (a, npts, ceil, newval)
PIXEL a[npts]
int npts
PIXEL ceil, newval
int i
$if (datatype == x)
real abs_ceil
$endif
begin
$if (datatype == x)
abs_ceil = abs (ceil)
$endif
do i = 1, npts
$if (datatype == x)
if (abs (a[i]) >= abs_ceil)
$else
if (a[i] >= ceil)
$endif
a[i] = newval
end
$endfor
|
