2 %%Creator: graphviz version 2.26.3 (20100126.1600)
14 /EncodingVector 256 array def
17 ISOLatin1Encoding 0 255 getinterval putinterval
18 EncodingVector 45 /hyphen put
20 % Set up ISO Latin 1 character encoding
22 dup dup findfont dup length dict begin
23 { 1 index /FID ne { def }{ pop pop } ifelse
25 /Encoding EncodingVector def
26 currentdict end definefont
28 /Times-Roman starnetISO def
29 /Times-Italic starnetISO def
30 /Times-Bold starnetISO def
31 /Times-BoldItalic starnetISO def
32 /Helvetica starnetISO def
33 /Helvetica-Oblique starnetISO def
34 /Helvetica-Bold starnetISO def
35 /Helvetica-BoldOblique starnetISO def
36 /Courier starnetISO def
37 /Courier-Oblique starnetISO def
38 /Courier-Bold starnetISO def
39 /Courier-BoldOblique starnetISO def
43 %%BeginResource: procset graphviz 0 0
44 /coord-font-family /Times-Roman def
45 /default-font-family /Times-Roman def
46 /coordfont coord-font-family findfont 8 scalefont def
48 /InvScaleFactor 1.0 def
50 dup 1 exch div /InvScaleFactor exch def
55 /solid { [] 0 setdash } bind def
56 /dashed { [9 InvScaleFactor mul dup ] 0 setdash } bind def
57 /dotted { [1 InvScaleFactor mul 6 InvScaleFactor mul] 0 setdash } bind def
58 /invis {/fill {newpath} def /stroke {newpath} def /show {pop newpath} def} bind def
59 /bold { 2 setlinewidth } bind def
61 /unfilled { } bind def
63 /diagonals { } bind def
65 % hooks for setting color
66 /nodecolor { sethsbcolor } bind def
67 /edgecolor { sethsbcolor } bind def
68 /graphcolor { sethsbcolor } bind def
69 /nopcolor {pop pop pop} bind def
71 /beginpage { % i j npages
80 (\() show i str cvs show (,) show j str cvs show (\)) show
90 % draw text fitted to its expected width
91 /alignedtext { % width text
97 text stringwidth pop width exch sub text length div 0 text ashow
102 /boxprim { % xcorner ycorner xsize ysize
125 /endpage { showpage } bind def
129 [ % layer color sequence - darkest to lightest
138 /layerlen layercolorseq length def
140 /setlayer {/maxlayer exch def /curlayer exch def
141 layercolorseq curlayer 1 sub layerlen mod get
142 aload pop sethsbcolor
143 /nodecolor {nopcolor} def
144 /edgecolor {nopcolor} def
145 /graphcolor {nopcolor} def
148 /onlayer { curlayer ne {invis} if } def
164 14 default-font-family set_font
166 % /arrowlength 10 def
169 % make sure pdfmark is harmless for PS-interpreters other than Distiller
170 /pdfmark where {pop} {userdict /pdfmark /cleartomark load put} ifelse
171 % make '<<' and '>>' safe on PS Level 1 devices
172 /languagelevel where {pop languagelevel}{1} ifelse
174 userdict (<<) cvn ([) cvn load put
175 userdict (>>) cvn ([) cvn load put
181 %%PageBoundingBox: 36 36 365 590
182 %%PageOrientation: Portrait
185 36 36 329 554 boxprim clip newpath
186 1 1 set_scale 0 rotate 40 41 translate
191 newpath 146 472 moveto
196 newpath 68 472 moveto
197 62 472 56 466 56 460 curveto
201 newpath 56 460 moveto
206 newpath 56 448 moveto
207 56 442 62 436 68 436 curveto
211 newpath 68 436 moveto
216 newpath 146 436 moveto
217 152 436 158 442 158 448 curveto
221 newpath 158 448 moveto
226 newpath 158 460 moveto
227 158 466 152 472 146 472 curveto
230 14 /Times-Roman set_font
231 63.5 450.4 moveto 87 (Stego Image) alignedtext
237 newpath 242 364 moveto
242 newpath 82 364 moveto
243 76 364 70 358 70 352 curveto
247 newpath 70 352 moveto
252 newpath 70 340 moveto
253 70 334 76 328 82 328 curveto
257 newpath 82 328 moveto
262 newpath 242 328 moveto
263 248 328 254 334 254 340 curveto
267 newpath 254 340 moveto
272 newpath 254 352 moveto
273 254 358 248 364 242 364 curveto
276 14 /Times-Roman set_font
277 77.5 342.4 moveto 169 (y=edgeDetection\(b bits\)) alignedtext
283 newpath 116.33 435.68 moveto
284 125.07 418.51 138.25 392.63 148.21 373.07 curveto
287 newpath 151.39 374.55 moveto
294 newpath 151.39 374.55 moveto
303 newpath 42 282 moveto
308 newpath 12 282 moveto
309 6 282 0 276 0 270 curveto
319 0 252 6 246 12 246 curveto
323 newpath 12 246 moveto
328 newpath 42 246 moveto
329 48 246 54 252 54 258 curveto
333 newpath 54 258 moveto
338 newpath 54 270 moveto
339 54 276 48 282 42 282 curveto
342 14 /Times-Roman set_font
343 8 260.4 moveto 38 (key k) alignedtext
349 newpath 191 110 moveto
354 newpath 31 110 moveto
355 25 110 19 104 19 98 curveto
365 19 80 25 74 31 74 curveto
374 newpath 191 74 moveto
375 197 74 203 80 203 86 curveto
379 newpath 203 86 moveto
384 newpath 203 98 moveto
385 203 104 197 110 191 110 curveto
388 14 /Times-Roman set_font
389 27 88.4 moveto 168 (message=decryption\(m\)) alignedtext
395 newpath 26.26 245.87 moveto
396 26.07 221.92 28.53 179.15 46 148 curveto
397 52.79 135.89 63.26 125.17 73.82 116.44 curveto
400 newpath 76.13 119.07 moveto
407 newpath 76.13 119.07 moveto
416 newpath 155 184 moveto
421 newpath 67 184 moveto
422 61 184 55 178 55 172 curveto
426 newpath 55 172 moveto
431 newpath 55 160 moveto
432 55 154 61 148 67 148 curveto
436 newpath 67 148 moveto
441 newpath 155 148 moveto
442 161 148 167 154 167 160 curveto
446 newpath 167 160 moveto
451 newpath 167 172 moveto
452 167 178 161 184 155 184 curveto
455 14 /Times-Roman set_font
456 62.5 162.4 moveto 97 (m= sample\(y\)) alignedtext
462 newpath 42.8 245.57 moveto
463 55.79 230.41 74.34 208.77 88.82 191.88 curveto
466 newpath 91.7 193.89 moveto
473 newpath 91.7 193.89 moveto
482 newpath 165 546 moveto
487 newpath 135 546 moveto
488 129 546 123 540 123 534 curveto
492 newpath 123 534 moveto
497 newpath 123 522 moveto
498 123 516 129 510 135 510 curveto
502 newpath 135 510 moveto
507 newpath 165 510 moveto
508 171 510 177 516 177 522 curveto
512 newpath 177 522 moveto
517 newpath 177 534 moveto
518 177 540 171 546 165 546 curveto
521 14 /Times-Roman set_font
522 132 524.4 moveto 36 (Start) alignedtext
528 newpath 139.37 509.71 moveto
529 134.32 501.02 128.18 490.45 122.62 480.87 curveto
532 newpath 125.56 478.97 moveto
539 newpath 125.56 478.97 moveto
548 newpath 122.68 521.02 moveto
549 98.49 513.29 64.4 498.31 47 472 curveto
550 10.56 416.91 15.84 334.97 21.92 292.24 curveto
553 newpath 25.4 292.68 moveto
560 newpath 25.4 292.68 moveto
569 newpath 240 472 moveto
574 newpath 188 472 moveto
575 182 472 176 466 176 460 curveto
579 newpath 176 460 moveto
584 newpath 176 448 moveto
585 176 442 182 436 188 436 curveto
589 newpath 188 436 moveto
594 newpath 240 436 moveto
595 246 436 252 442 252 448 curveto
599 newpath 252 448 moveto
604 newpath 252 460 moveto
605 252 466 246 472 240 472 curveto
608 14 /Times-Roman set_font
609 183.5 450.4 moveto 61 (Param. b) alignedtext
615 newpath 165.82 509.71 moveto
616 173.65 500.66 183.23 489.58 191.78 479.69 curveto
619 newpath 194.47 481.93 moveto
626 newpath 194.47 481.93 moveto
635 newpath 309 418 moveto
640 newpath 253 418 moveto
641 247 418 241 412 241 406 curveto
645 newpath 241 406 moveto
650 newpath 241 394 moveto
651 241 388 247 382 253 382 curveto
655 newpath 253 382 moveto
660 newpath 309 382 moveto
661 315 382 321 388 321 394 curveto
665 newpath 321 394 moveto
670 newpath 321 406 moveto
671 321 412 315 418 309 418 curveto
674 14 /Times-Roman set_font
675 249 396.4 moveto 64 (Param. H) alignedtext
681 newpath 177.32 521.11 moveto
682 202.62 513.32 239.5 498.19 261 472 curveto
683 271.13 459.65 276.15 442.53 278.62 428.08 curveto
686 newpath 282.09 428.52 moveto
693 newpath 282.09 428.52 moveto
702 newpath 126 36 moveto
708 90 36 84 30 84 24 curveto
718 84 6 90 0 96 0 curveto
728 132 0 138 6 138 12 curveto
732 newpath 138 12 moveto
737 newpath 138 24 moveto
738 138 30 132 36 126 36 curveto
741 14 /Times-Roman set_font
742 97.5 14.4 moveto 27 (End) alignedtext
748 newpath 205.18 435.68 moveto
749 196.91 418.51 184.45 392.63 175.04 373.07 curveto
752 newpath 178.18 371.54 moveto
759 newpath 178.18 371.54 moveto
768 newpath 289 184 moveto
773 newpath 197 184 moveto
774 191 184 185 178 185 172 curveto
778 newpath 185 172 moveto
783 newpath 185 160 moveto
784 185 154 191 148 197 148 curveto
788 newpath 197 148 moveto
793 newpath 289 148 moveto
794 295 148 301 154 301 160 curveto
798 newpath 301 160 moveto
803 newpath 301 172 moveto
804 301 178 295 184 289 184 curveto
807 14 /Times-Roman set_font
808 192.5 162.4 moveto 101 (m = STCr\(y,H\)) alignedtext
814 newpath 279.94 381.88 moveto
815 277.96 351.78 272.98 289.68 263 238 curveto
816 260.17 223.33 255.83 207.28 251.92 194.06 curveto
819 newpath 255.17 192.71 moveto
826 newpath 255.17 192.71 moveto
835 newpath 210.71 147.9 moveto
836 193.13 138.04 171.19 125.74 152.37 115.19 curveto
839 newpath 153.85 112.01 moveto
846 newpath 153.85 112.01 moveto
855 newpath 163 290 moveto
861 14 /Times-Roman set_font
862 125.5 260.4 moveto 75 (Use of STC) alignedtext
868 newpath 162.22 327.8 moveto
869 162.32 319.62 162.44 309.67 162.56 300.08 curveto
872 newpath 166.06 299.97 moveto
879 newpath 166.06 299.97 moveto
888 newpath 111 73.71 moveto
889 111 65.46 111 55.54 111 46.36 curveto
892 newpath 114.5 46.08 moveto
899 newpath 114.5 46.08 moveto
908 newpath 180.36 242.74 moveto
909 192.49 227.87 208.76 207.94 221.68 192.11 curveto
912 newpath 224.48 194.22 moveto
919 newpath 224.48 194.22 moveto
924 14 /Times-Roman set_font
925 212 207.4 moveto 23 (Yes) alignedtext
931 newpath 150.94 241.27 moveto
932 143.29 226.85 133.35 208.12 125.3 192.95 curveto
935 newpath 128.35 191.22 moveto
942 newpath 128.35 191.22 moveto
947 14 /Times-Roman set_font
948 138 207.4 moveto 19 (No) alignedtext
954 newpath 111 147.71 moveto
955 111 139.46 111 129.54 111 120.36 curveto
958 newpath 114.5 120.08 moveto
965 newpath 114.5 120.08 moveto
977 %%BoundingBox: 36 36 365 590