… | |
… | |
2 | #include "perl.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
3 | #include "XSUB.h" |
4 | |
4 | |
5 | #include <string.h> |
5 | #include <string.h> |
6 | #include <setjmp.h> |
6 | #include <setjmp.h> |
|
|
7 | #include <math.h> |
|
|
8 | |
|
|
9 | #include <magic.h> |
7 | |
10 | |
8 | #include <jpeglib.h> |
11 | #include <jpeglib.h> |
9 | #include <glib.h> |
12 | #include <glib.h> |
10 | #include <gtk/gtk.h> |
13 | #include <gtk/gtk.h> |
11 | #include <gdk-pixbuf/gdk-pixbuf.h> |
14 | #include <gdk-pixbuf/gdk-pixbuf.h> |
12 | |
15 | |
13 | #include <gperl.h> |
16 | #include <gperl.h> |
14 | #include <gtk2perl.h> |
17 | #include <gtk2perl.h> |
15 | |
18 | |
16 | #define IW 80 /* MUST match Schnauer.pm! */ |
19 | #define IW 80 /* MUST match Schnauzer.pm! */ |
17 | #define IH 60 /* MUST match Schnauer.pm! */ |
20 | #define IH 60 /* MUST match Schnauzer.pm! */ |
18 | |
21 | |
19 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
22 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
20 | |
23 | |
21 | #define LINELENGTH 240 |
24 | #define LINELENGTH 240 |
22 | |
25 | |
… | |
… | |
65 | |
68 | |
66 | *h &= 255; |
69 | *h &= 255; |
67 | } |
70 | } |
68 | } |
71 | } |
69 | |
72 | |
|
|
73 | struct feature { |
|
|
74 | float v1, v2, v3; // mean, square, cube |
|
|
75 | int n; |
|
|
76 | }; |
|
|
77 | |
|
|
78 | static void |
|
|
79 | feature_init (struct feature *f) |
|
|
80 | { |
|
|
81 | f->v1 = 0.; |
|
|
82 | f->v2 = 0.; |
|
|
83 | f->v3 = 0.; |
|
|
84 | f->n = 0; |
|
|
85 | } |
|
|
86 | |
|
|
87 | // didn't find an algorithm to neatly do mean, variance and skew in one pass. |
|
|
88 | // elmex ist schuld. |
|
|
89 | static void |
|
|
90 | feature_update_pass_1 (struct feature *f, unsigned int v) |
|
|
91 | { |
|
|
92 | f->v1 += v; |
|
|
93 | f->n += 1; |
|
|
94 | } |
|
|
95 | |
|
|
96 | static void |
|
|
97 | feature_finish_pass_1 (struct feature *f) |
|
|
98 | { |
|
|
99 | if (f->n < 1) |
|
|
100 | return; |
|
|
101 | |
|
|
102 | f->v1 /= f->n; |
|
|
103 | } |
|
|
104 | |
|
|
105 | static void |
|
|
106 | feature_update_pass_2 (struct feature *f, unsigned int v) |
|
|
107 | { |
|
|
108 | float d = v - f->v1; |
|
|
109 | |
|
|
110 | f->v2 += d * d; |
|
|
111 | f->v3 += d * d * d; |
|
|
112 | } |
|
|
113 | |
|
|
114 | static void |
|
|
115 | feature_finish_pass_2 (struct feature *f) |
|
|
116 | { |
|
|
117 | if (f->n < 1) |
|
|
118 | return; |
|
|
119 | |
|
|
120 | f->v2 /= f->n; |
|
|
121 | f->v3 /= f->n; |
|
|
122 | |
|
|
123 | f->v1 /= 255.; |
|
|
124 | f->v2 /= 255. * 255.; f->v2 = sqrtf (f->v2); |
|
|
125 | f->v3 /= 255. * 255. * 255.; f->v3 = powf (fabsf (f->v3), 1./3.); |
|
|
126 | } |
|
|
127 | |
70 | static guint32 a85_val; |
128 | static guint32 a85_val; |
71 | static guint a85_cnt; |
129 | static guint a85_cnt; |
72 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
130 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
73 | |
131 | |
74 | static void |
132 | static void |
… | |
… | |
143 | } |
201 | } |
144 | |
202 | |
145 | OUTPUT: |
203 | OUTPUT: |
146 | RETVAL |
204 | RETVAL |
147 | |
205 | |
|
|
206 | const char * |
|
|
207 | magic (const char *path) |
|
|
208 | CODE: |
|
|
209 | { |
|
|
210 | static magic_t cookie; |
|
|
211 | |
|
|
212 | if (!cookie) |
|
|
213 | { |
|
|
214 | cookie = magic_open (MAGIC_NONE); |
|
|
215 | |
|
|
216 | if (cookie) |
|
|
217 | magic_load (cookie, 0); |
|
|
218 | else |
|
|
219 | XSRETURN_UNDEF; |
|
|
220 | } |
|
|
221 | |
|
|
222 | RETVAL = magic_file (cookie, path); |
|
|
223 | } |
|
|
224 | OUTPUT: |
|
|
225 | RETVAL |
|
|
226 | |
|
|
227 | const char * |
|
|
228 | magic_mime (const char *path) |
|
|
229 | CODE: |
|
|
230 | { |
|
|
231 | static magic_t cookie; |
|
|
232 | |
|
|
233 | if (!cookie) |
|
|
234 | { |
|
|
235 | cookie = magic_open (MAGIC_MIME); |
|
|
236 | |
|
|
237 | if (cookie) |
|
|
238 | magic_load (cookie, 0); |
|
|
239 | else |
|
|
240 | XSRETURN_UNDEF; |
|
|
241 | } |
|
|
242 | |
|
|
243 | RETVAL = magic_file (cookie, path); |
|
|
244 | } |
|
|
245 | OUTPUT: |
|
|
246 | RETVAL |
|
|
247 | |
148 | # missing in Gtk2 perl module |
248 | # missing in Gtk2 perl module |
149 | |
249 | |
150 | gboolean |
250 | gboolean |
151 | gdk_net_wm_supports (GdkAtom property) |
251 | gdk_net_wm_supports (GdkAtom property) |
152 | CODE: |
252 | CODE: |
… | |
… | |
286 | fclose (fp); |
386 | fclose (fp); |
287 | jpeg_destroy_decompress (&cinfo); |
387 | jpeg_destroy_decompress (&cinfo); |
288 | } |
388 | } |
289 | OUTPUT: |
389 | OUTPUT: |
290 | RETVAL |
390 | RETVAL |
|
|
391 | |
|
|
392 | void |
|
|
393 | compare (GdkPixbuf *a, GdkPixbuf *b) |
|
|
394 | PPCODE: |
|
|
395 | { |
|
|
396 | int w = gdk_pixbuf_get_width (a); |
|
|
397 | int h = gdk_pixbuf_get_height (a); |
|
|
398 | int sa = gdk_pixbuf_get_rowstride (a); |
|
|
399 | int sb = gdk_pixbuf_get_rowstride (b); |
|
|
400 | |
|
|
401 | guchar *pa = gdk_pixbuf_get_pixels (a); |
|
|
402 | guchar *pb = gdk_pixbuf_get_pixels (b); |
|
|
403 | |
|
|
404 | int x, y; |
|
|
405 | |
|
|
406 | assert (w == gdk_pixbuf_get_width (b)); |
|
|
407 | assert (h == gdk_pixbuf_get_height (b)); |
|
|
408 | |
|
|
409 | assert (gdk_pixbuf_get_n_channels (a) == 3); |
|
|
410 | assert (gdk_pixbuf_get_n_channels (b) == 3); |
|
|
411 | |
|
|
412 | double diff = 0.; |
|
|
413 | int peak = 0; |
|
|
414 | |
|
|
415 | if (w && h) |
|
|
416 | for (y = 0; y < h; y++) |
|
|
417 | { |
|
|
418 | guchar *pa_ = pa + y * sa; |
|
|
419 | guchar *pb_ = pb + y * sb; |
|
|
420 | |
|
|
421 | for (x = 0; x < w; x++) |
|
|
422 | { |
|
|
423 | int d; |
|
|
424 | |
|
|
425 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
|
426 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
|
427 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
|
428 | } |
|
|
429 | } |
|
|
430 | |
|
|
431 | EXTEND (SP, 2); |
|
|
432 | PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.))))); |
|
|
433 | PUSHs (sv_2mortal (newSVnv (peak / 255.))); |
|
|
434 | } |
291 | |
435 | |
292 | ############################################################################# |
436 | ############################################################################# |
293 | |
437 | |
294 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
438 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
295 | |
439 | |
… | |
… | |
497 | ############################################################################# |
641 | ############################################################################# |
498 | |
642 | |
499 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
643 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
500 | |
644 | |
501 | SV * |
645 | SV * |
502 | make_histograms (SV *ar) |
646 | extract_features (SV *ar) |
503 | CODE: |
647 | CODE: |
504 | { |
648 | { |
505 | int i; |
649 | int i; |
506 | AV *av, *result; |
650 | AV *av, *result; |
507 | |
651 | |
508 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
652 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
509 | croak ("Not an array ref as first argument to make_histogram"); |
653 | croak ("Not an array ref as first argument to extract_features"); |
510 | |
654 | |
511 | av = (AV *) SvRV (ar); |
655 | av = (AV *) SvRV (ar); |
512 | result = newAV (); |
656 | result = newAV (); |
513 | |
657 | |
514 | for (i = 0; i <= av_len (av); ++i) |
658 | for (i = 0; i <= av_len (av); ++i) |
515 | { |
659 | { |
516 | const int HISTSIZE = 64; |
|
|
517 | |
|
|
518 | int j; |
|
|
519 | SV *sv = *av_fetch (av, i, 1); |
660 | SV *sv = *av_fetch (av, i, 1); |
520 | STRLEN len; |
|
|
521 | char *buf = SvPVbyte (sv, len); |
|
|
522 | |
|
|
523 | int tmphist[HISTSIZE]; |
|
|
524 | float *hist; |
|
|
525 | |
|
|
526 | SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); |
661 | SV *histsv = newSV (9 * sizeof (float) + 1); |
|
|
662 | |
527 | SvPOK_on (histsv); |
663 | SvPOK_on (histsv); |
528 | SvCUR_set (histsv, HISTSIZE * sizeof (float)); |
664 | SvCUR_set (histsv, 9 * sizeof (float)); |
529 | hist = (float *)SvPVX (histsv); |
665 | float *hist = (float *)SvPVX (histsv); |
530 | |
666 | |
531 | Zero (tmphist, sizeof (tmphist), char); |
667 | struct feature f_h, f_s, f_v; |
|
|
668 | feature_init (&f_h); |
|
|
669 | feature_init (&f_s); |
|
|
670 | feature_init (&f_v); |
532 | |
671 | |
533 | for (j = len; j--; ) |
|
|
534 | { |
|
|
535 | unsigned int idx |
|
|
536 | = ((*buf & 0xc0) >> 2) |
|
|
537 | | ((*buf & 0x18) >> 1) |
|
|
538 | | (*buf & 0x03); |
|
|
539 | |
|
|
540 | ++tmphist[idx]; |
|
|
541 | ++buf; |
|
|
542 | } |
|
|
543 | |
672 | { |
544 | for (j = 0; j < HISTSIZE; ++j) |
673 | STRLEN len; |
545 | hist[j] = (float)tmphist[j] / (len + 1e-30); |
674 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
|
|
675 | while (len >= 3) |
|
|
676 | { |
|
|
677 | unsigned int r, g, b, h, s, v; |
|
|
678 | r = *buf++; g = *buf++; b = *buf++; |
|
|
679 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
680 | |
|
|
681 | feature_update_pass_1 (&f_h, h); |
|
|
682 | feature_update_pass_1 (&f_s, s); |
|
|
683 | feature_update_pass_1 (&f_v, v); |
|
|
684 | |
|
|
685 | len -= 3; |
|
|
686 | } |
|
|
687 | |
|
|
688 | feature_finish_pass_1 (&f_h); |
|
|
689 | feature_finish_pass_1 (&f_s); |
|
|
690 | feature_finish_pass_1 (&f_v); |
|
|
691 | } |
|
|
692 | |
|
|
693 | { |
|
|
694 | STRLEN len; |
|
|
695 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
|
|
696 | while (len >= 3) |
|
|
697 | { |
|
|
698 | unsigned int r, g, b, h, s, v; |
|
|
699 | r = *buf++; g = *buf++; b = *buf++; |
|
|
700 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
701 | |
|
|
702 | feature_update_pass_2 (&f_h, h); |
|
|
703 | feature_update_pass_2 (&f_s, s); |
|
|
704 | feature_update_pass_2 (&f_v, v); |
|
|
705 | |
|
|
706 | len -= 3; |
|
|
707 | } |
|
|
708 | |
|
|
709 | feature_finish_pass_2 (&f_h); |
|
|
710 | feature_finish_pass_2 (&f_s); |
|
|
711 | feature_finish_pass_2 (&f_v); |
|
|
712 | } |
|
|
713 | |
|
|
714 | hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.; |
|
|
715 | hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ; |
|
|
716 | hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5; |
546 | |
717 | |
547 | av_push (result, histsv); |
718 | av_push (result, histsv); |
548 | } |
719 | } |
549 | |
720 | |
550 | RETVAL = newRV_noinc ((SV *)result); |
721 | RETVAL = newRV_noinc ((SV *)result); |
551 | } |
722 | } |
552 | OUTPUT: |
723 | OUTPUT: |
553 | RETVAL |
724 | RETVAL |
554 | |
725 | |
555 | |
|
|