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 36 601 722
182 %%PageOrientation: Portrait
185 36 36 565 686 boxprim clip newpath
186 1 1 set_scale 0 rotate 40 41 translate
191 newpath 72 604 moveto
196 newpath 12 604 moveto
197 6 604 0 598 0 592 curveto
207 0 566 6 560 12 560 curveto
211 newpath 12 560 moveto
216 newpath 72 560 moveto
217 78 560 84 566 84 572 curveto
221 newpath 84 572 moveto
226 newpath 84 592 moveto
227 84 598 78 604 72 604 curveto
230 14 /Times-Roman set_font
231 8 587.4 moveto 68 (Choice of ) alignedtext
233 14 /Times-Roman set_font
234 13 569.4 moveto 58 ( cover X) alignedtext
240 newpath 215 522 moveto
245 newpath 55 522 moveto
246 49 522 43 516 43 510 curveto
250 newpath 43 510 moveto
255 newpath 43 498 moveto
256 43 492 49 486 55 486 curveto
260 newpath 55 486 moveto
265 newpath 215 486 moveto
266 221 486 227 492 227 498 curveto
270 newpath 227 498 moveto
275 newpath 227 510 moveto
276 227 516 221 522 215 522 curveto
279 14 /Times-Roman set_font
280 50.5 500.4 moveto 169 (x=edgeDetection\(b bits\)) alignedtext
286 newpath 68.4 559.86 moveto
287 79.92 550.2 93.48 538.83 105.34 528.87 curveto
290 newpath 107.83 531.36 moveto
297 newpath 107.83 531.36 moveto
306 newpath 172 600 moveto
311 newpath 114 600 moveto
312 108 600 102 594 102 588 curveto
316 newpath 102 588 moveto
321 newpath 102 576 moveto
322 102 570 108 564 114 564 curveto
326 newpath 114 564 moveto
331 newpath 172 564 moveto
332 178 564 184 570 184 576 curveto
336 newpath 184 576 moveto
341 newpath 184 588 moveto
342 184 594 178 600 172 600 curveto
345 14 /Times-Roman set_font
346 110 578.4 moveto 66 (Param. b ) alignedtext
352 newpath 141.14 563.91 moveto
353 140.18 554.53 138.98 542.85 137.9 532.3 curveto
356 newpath 141.38 531.85 moveto
363 newpath 141.38 531.85 moveto
372 newpath 376 600 moveto
377 newpath 286 600 moveto
378 280 600 274 594 274 588 curveto
382 newpath 274 588 moveto
387 newpath 274 576 moveto
388 274 570 280 564 286 564 curveto
392 newpath 286 564 moveto
397 newpath 376 564 moveto
398 382 564 388 570 388 576 curveto
402 newpath 388 576 moveto
407 newpath 388 588 moveto
408 388 594 382 600 376 600 curveto
411 14 /Times-Roman set_font
412 282 578.4 moveto 98 (Message mess) alignedtext
418 newpath 405 522 moveto
423 newpath 257 522 moveto
424 251 522 245 516 245 510 curveto
428 newpath 245 510 moveto
433 newpath 245 498 moveto
434 245 492 251 486 257 486 curveto
438 newpath 257 486 moveto
443 newpath 405 486 moveto
444 411 486 417 492 417 498 curveto
448 newpath 417 498 moveto
453 newpath 417 510 moveto
454 417 516 411 522 405 522 curveto
457 14 /Times-Roman set_font
458 252.5 500.4 moveto 157 (m=encryption\(mess,k\)) alignedtext
464 newpath 331 563.91 moveto
465 331 554.53 331 542.85 331 532.3 curveto
468 newpath 334.5 532.26 moveto
475 newpath 334.5 532.26 moveto
484 newpath 244 600 moveto
489 newpath 214 600 moveto
490 208 600 202 594 202 588 curveto
494 newpath 202 588 moveto
499 newpath 202 576 moveto
500 202 570 208 564 214 564 curveto
504 newpath 214 564 moveto
509 newpath 244 564 moveto
510 250 564 256 570 256 576 curveto
514 newpath 256 576 moveto
519 newpath 256 588 moveto
520 256 594 250 600 244 600 curveto
523 14 /Times-Roman set_font
524 210 578.4 moveto 38 (Key k) alignedtext
530 newpath 252.66 563.91 moveto
531 266.46 553.35 284.06 539.9 299.08 528.41 curveto
534 newpath 301.3 531.12 moveto
541 newpath 301.3 531.12 moveto
550 newpath 195 184 moveto
555 newpath 101 184 moveto
556 95 184 89 178 89 172 curveto
560 newpath 89 172 moveto
565 newpath 89 160 moveto
566 89 154 95 148 101 148 curveto
570 newpath 101 148 moveto
575 newpath 195 148 moveto
576 201 148 207 154 207 160 curveto
580 newpath 207 160 moveto
585 newpath 207 172 moveto
586 207 178 201 184 195 184 curveto
589 14 /Times-Roman set_font
590 97 162.4 moveto 102 (Enlarge edges ) alignedtext
596 newpath 128.36 184.04 moveto
597 115.27 197.46 99.19 217.03 92 238 curveto
598 63.24 321.83 100.59 427.26 121.96 476.41 curveto
601 newpath 118.85 478.04 moveto
608 newpath 118.85 478.04 moveto
617 newpath 273 432 moveto
623 14 /Times-Roman set_font
624 243 393.4 moveto 60 (Size of x) alignedtext
626 14 /Times-Roman set_font
627 224.5 375.4 moveto 97 ( enough for m) alignedtext
633 newpath 321.94 485.88 moveto
634 315.05 472.09 305.24 452.49 296.22 434.44 curveto
637 newpath 299.19 432.56 moveto
644 newpath 299.19 432.56 moveto
653 newpath 392 184 moveto
658 newpath 312 184 moveto
659 306 184 300 178 300 172 curveto
663 newpath 300 172 moveto
668 newpath 300 160 moveto
669 300 154 306 148 312 148 curveto
673 newpath 312 148 moveto
678 newpath 392 148 moveto
679 398 148 404 154 404 160 curveto
683 newpath 404 160 moveto
688 newpath 404 172 moveto
689 404 178 398 184 392 184 curveto
692 14 /Times-Roman set_font
693 308 162.4 moveto 88 (y= STC\(x,m\)) alignedtext
699 newpath 506 110 moveto
704 newpath 356 110 moveto
705 350 110 344 104 344 98 curveto
709 newpath 344 98 moveto
714 newpath 344 86 moveto
715 344 80 350 74 356 74 curveto
719 newpath 356 74 moveto
724 newpath 506 74 moveto
725 512 74 518 80 518 86 curveto
729 newpath 518 86 moveto
734 newpath 518 98 moveto
735 518 104 512 110 506 110 curveto
738 14 /Times-Roman set_font
739 351.5 88.4 moveto 159 (stego=embedding\(y,X\)) alignedtext
745 newpath 371.53 147.71 moveto
746 381.38 138.48 393.49 127.14 404.2 117.11 curveto
749 newpath 406.79 119.47 moveto
756 newpath 406.79 119.47 moveto
765 newpath 534 184 moveto
770 newpath 434 184 moveto
771 428 184 422 178 422 172 curveto
775 newpath 422 172 moveto
780 newpath 422 160 moveto
781 422 154 428 148 434 148 curveto
785 newpath 434 148 moveto
790 newpath 534 148 moveto
791 540 148 546 154 546 160 curveto
795 newpath 546 160 moveto
800 newpath 546 172 moveto
801 546 178 540 184 534 184 curveto
804 14 /Times-Roman set_font
805 429.5 162.4 moveto 109 (y= sample\(x,m\)) alignedtext
811 newpath 470.9 147.71 moveto
812 464.54 138.84 456.8 128.02 449.82 118.28 curveto
815 newpath 452.62 116.17 moveto
822 newpath 452.62 116.17 moveto
831 newpath 446 36 moveto
836 newpath 416 36 moveto
837 410 36 404 30 404 24 curveto
841 newpath 404 24 moveto
846 newpath 404 12 moveto
847 404 6 410 0 416 0 curveto
857 452 0 458 6 458 12 curveto
861 newpath 458 12 moveto
866 newpath 458 24 moveto
867 458 30 452 36 446 36 curveto
870 14 /Times-Roman set_font
871 417.5 14.4 moveto 27 (End) alignedtext
877 newpath 431 73.71 moveto
878 431 65.46 431 55.54 431 46.36 curveto
881 newpath 434.5 46.08 moveto
888 newpath 434.5 46.08 moveto
897 newpath 200 678 moveto
902 newpath 170 678 moveto
903 164 678 158 672 158 666 curveto
907 newpath 158 666 moveto
912 newpath 158 654 moveto
913 158 648 164 642 170 642 curveto
917 newpath 170 642 moveto
922 newpath 200 642 moveto
923 206 642 212 648 212 654 curveto
927 newpath 212 654 moveto
932 newpath 212 666 moveto
933 212 672 206 678 200 678 curveto
936 14 /Times-Roman set_font
937 167 656.4 moveto 36 (Start) alignedtext
943 newpath 157.77 645.15 moveto
944 139.03 634.93 113.62 621.07 91.38 608.93 curveto
947 newpath 92.84 605.75 moveto
954 newpath 92.84 605.75 moveto
963 newpath 175.26 641.91 moveto
964 170.05 632.23 163.53 620.12 157.71 609.32 curveto
967 newpath 160.66 607.41 moveto
974 newpath 160.66 607.41 moveto
983 newpath 212.12 645.51 moveto
984 233.4 634.14 263.42 618.1 287.97 604.99 curveto
987 newpath 289.92 607.92 moveto
994 newpath 289.92 607.92 moveto
1003 newpath 195.21 641.91 moveto
1004 200.72 632.13 207.64 619.87 213.77 608.99 curveto
1007 newpath 216.83 610.69 moveto
1009 210.74 607.25 lineto
1014 newpath 216.83 610.69 moveto
1016 210.74 607.25 lineto
1023 newpath 156.56 485.88 moveto
1024 175.99 469.55 205.14 445.04 229.41 424.64 curveto
1027 newpath 231.7 427.29 moveto
1034 newpath 231.7 427.29 moveto
1043 newpath 229 290 moveto
1049 14 /Times-Roman set_font
1050 173 260.4 moveto 112 (Strategy is fixed) alignedtext
1056 newpath 259.2 349.11 moveto
1057 253.41 332.79 246.74 313.99 241.14 298.21 curveto
1060 newpath 244.28 296.59 moveto
1061 237.64 288.34 lineto
1062 237.68 298.93 lineto
1067 newpath 244.28 296.59 moveto
1068 237.64 288.34 lineto
1069 237.68 298.93 lineto
1072 14 /Times-Roman set_font
1073 251 313.4 moveto 19 (No) alignedtext
1079 newpath 466 290 moveto
1085 14 /Times-Roman set_font
1086 428.5 260.4 moveto 75 (Use of STC) alignedtext
1092 newpath 315.83 360.48 moveto
1093 349.84 338.63 396.88 308.41 429.2 287.64 curveto
1096 newpath 431.39 290.4 moveto
1097 437.91 282.05 lineto
1103 newpath 431.39 290.4 moveto
1104 437.91 282.05 lineto
1108 14 /Times-Roman set_font
1109 392 313.4 moveto 23 (Yes) alignedtext
1115 newpath 200.83 284.29 moveto
1116 155.04 319.28 66.32 395.95 34 486 curveto
1117 26.66 506.45 28.83 530.88 32.75 549.97 curveto
1120 newpath 29.4 551.01 moveto
1127 newpath 29.4 551.01 moveto
1132 14 /Times-Roman set_font
1133 49 455.4 moveto 19 (No) alignedtext
1139 newpath 210.21 241.27 moveto
1140 198.07 226.58 182.22 207.41 169.57 192.09 curveto
1143 newpath 171.97 189.51 moveto
1145 166.58 193.97 lineto
1150 newpath 171.97 189.51 moveto
1152 166.58 193.97 lineto
1155 14 /Times-Roman set_font
1156 190 207.4 moveto 23 (Yes) alignedtext
1162 newpath 443.2 244.4 moveto
1163 425.27 228.99 400.17 207.41 380.84 190.8 curveto
1166 newpath 383.08 188.1 moveto
1167 373.22 184.24 lineto
1168 378.52 193.41 lineto
1173 newpath 383.08 188.1 moveto
1174 373.22 184.24 lineto
1175 378.52 193.41 lineto
1178 14 /Times-Roman set_font
1179 412 207.4 moveto 23 (Yes) alignedtext
1185 newpath 470.54 239.27 moveto
1186 473.05 225.62 476.17 208.62 478.78 194.43 curveto
1189 newpath 482.29 194.69 moveto
1190 480.65 184.22 lineto
1196 newpath 482.29 194.69 moveto
1197 480.65 184.22 lineto
1201 14 /Times-Roman set_font
1202 477 207.4 moveto 19 (No) alignedtext
1211 %%BoundingBox: 36 36 601 722