| [ FlagOfKids ] in KIDS 글 쓴 이(By): soliton (김 찬주) 날 짜 (Date): 1993년08월17일(화) 18시05분42초 KDT 제 목(Title): [Re] stereogram 에 대한 모든(?) 것 다음은 usenet news article중의 몇개를 모은 것입니다. 아마 원하시는 것의 대부분을 찾을 수 있을 겁니다. 원리, 프로그램, 실행파일이 있는 곳, 여러가지 그림의 예 등등... 참고로 말씀드리자면 usenet newsgroup중에 alt.3d라는 group이 있는데 거기서는 stereogram을 포함하여 3차원 image에 대해 중점적으로 토론하고 정보를 교환 하므로 관심이 있으면 보시기 바랍니다. **************************** From han.hana.nm.kr!agate!howland.reston.ans.net!sol.ctr.columbia.edu!news.kei.com!news.byu.edu!news.provo.novell.com!thale.Test.NPD.Provo.Novell.COM!thale Mon Aug 9 18:46:23 1993 Newsgroups: alt.3d Path: han.hana.nm.kr!agate!howland.reston.ans.net!sol.ctr.columbia.edu!news.kei.com!news.byu.edu!news.provo.novell.com!thale.Test.NPD.Provo.Novell.COM!thale From: thale@novell.com (Todd D. Hale) Subject: Quick FAQ Posting Message-ID: <thale.25.743876379@novell.com> Lines: 297 Sender: usenet@Provo.Novell.COM (USENET News) Nntp-Posting-Host: thale.test.npd.provo.novell.com Organization: Novell, Inc., Provo, UT, USA Date: Wed, 28 Jul 1993 16:19:39 GMT Hello all, We really need someone to do a FAQ (complete with table of contents, etc...). Below, you'll find a where's-it list with explanations from E.Thompson, a SIRDS book listed by E.Thompson, a couple simple ascii stereograms and some C code from D.Thomas, and a great letter of encouragement to those who still can't see random dot stereograms from W.C.Haga. Enjoy! Todd Hale P.S. The rest is excerpts--my text ends here ****************************************************** Where's It? From: E.Thompson@newcastle.ac.uk (E. Thompson) Subject: Random Dot Stereograms Date: Fri, 25 Jun 1993 07:19:47 GMT General information on random dot stereograms - see also the readme.txt file included in version 2 of mindimages. RE : SIRDS software general summary FTP to Wuarchive (128.252.135.4) They are as follows: 1) A SIRDS animation called Dynamic.exe : Kind of slow to start since it first generated about 15-20 screens of SIRDS and then did some screen page swapping, but definitely interesting. /pub/MSDOS_UPLOADS/graphics/. 2) /graphics/graphics/mirrors/sugrfx.acs.syr.edu/3d/randot/3drandot.zoo 3) /mirrors/msdos/graphics/mindim20.zip 4) /mirrors/msdos/graphics/perspect.zip Perspect is good for experimenting to see how the colors translate to depth, but allow limited development (very simple pictures only). For beginners, this is a nice program to use. MindImg version 2.0 is a wonderfully developed shell for ready-made .RLE images of SIRDS and the package contains many high-quality images. The shell allows the user to view images Normal or Inverted (so that we cross-eye viewers can see the image roughly the same as you wide-eye viewers, and vice-versa). It also allows the user to view the images in red-green format for those unable to see them otherwise using R/G glasses. And lastly, it allows the user to generate a postscript file of the image to be printed out, AND with varied resolution of the pixels! 3dRandot takes a .GIF (or .PCX, maybe others, too) image and generates a single image random dot stereogram on the screen. Unfortunately, it has no save feature, unlike Perspect. You must use a screen capture program (I use Grabb384) to save the image. I can recommend two programs to generate images for 3dRandot: Improc41, and Fractint 17.2. Both are available at WUARCHIVE in the directory /mirrors/msdos/graphics/ (Grabb384 is in /mirrors/msdos/screen/) Improces is a VGA paint program with some very nice features and effects. And a lot of plasma fields created with Fractint, saved as .GIFs make very interesting SIRDS. An excellent source of information (sample RDS and source code) is contained in Andrew A.Kinsman - Random Dot Stereograms ISBN 0-9630142-1-8 $13.95 U.S. Also there is a commercial RDS program which should be available as STW_DEMO.EXE in it's demo form, the full package will allow RDS creation. The producers are : - N.E.Thing Enterprises P.O. Box 1827 Cambridge MA 02139 Approx 40$ Lastly myself and my colleagues are looking at developing software which will create our RLE format from images created with other packages. e.g. BMP / GIF format. - this will be announced in newsgroup alt.3d, but may be some time as I am involved with two or three other projects. Hope this long-winded note helps! E-mail - E.Thompson@ncl.ac.uk ******************************************************** SIRDS Book! From: E.Thompson@newcastle.ac.uk (E. Thompson) Subject: Random Dot Stereograms Date: Wed, 30 Jun 1993 07:18:37 GMT There is a good reference on the subject : Random Dot Stereograms by Andrew A. Kinsman ISBN 0-9630142-1-8 Published by Kinsman Physics, P.O. Box 22682, Rochester, N.Y. 14692-2682 Source code included - disc available. $13.95 U.S. Limited first print. E.Thompson@ncl.ac.uk *************************************************** ASCII Stereograms From: dthomas@bbx.basis.com (Dave Thomas) Subject: (long) ASCII stereograms Date: Tue, 6 Jul 1993 16:49:13 GMT First of all, here's a couple of hand-generated ones. O O n n n n n n n n n n n n n n n n f f f f f f f f f f f f f e e e e e e e e e e e e e e e e a a a a a a a a a a a a a a a a a a a a a a a a a a a a a r r r r r r r r r r r r r r r r r r r r r r r r r r r r r g g g g g g g g g g g g g g g g g g g g g g g g g r r r r r r r r r r r r r r r r r r r e e e e e e e e e e e e e e e a a a a a a a a a a a a a t t t t t t t t t t t <<<<>>>><<<<>>>><<<<>>>><<<<>>>><<<<>>>><<<<>>>><<<<>>>><<<<>>>><<<<>>>> d d d d d d d d d d d e e e e e e e e e e e e e p p p p p p p p p p p p p p p t t t t t t t t t t t t t t t t t t t h h h h h h h h h h h h h h h h h h h h h h h h h Wow.. I'd forgotten how much I enjoyed those! **************************************** Random Character Stereogram Code Now here's a hack of a hack I found on the net. Basically it generates stereograms from ascii diagrams. Here's the program first: #define DEPTH0 16 #define COLS 79 #include <stdio.h> main() { long now; int col; char m[COLS+1],s[COLS+1]; int i,e,c; /* seed random number generator */ time (&now); srand (now); /* print fusion X's */ for (col = 0; COLS - col >= DEPTH0; col += DEPTH0) { for (i = 0; i < DEPTH0-1; ++i) putchar (' '); putchar ('X'); } putchar ('\n'); /* process input image */ while (memset(m,'\0',COLS+1),fgets (m, COLS+1, stdin)) { e = 0; s[COLS] = 0; for(i=0; i<COLS; ) { e = 0; while (i >= DEPTH0 && i < COLS && (c = m[i - DEPTH0]) >= '0' && c <= '9') { e = 1; s[i] = s[i-DEPTH0+c-'0']; ++i; } s[i++] = (e || i < DEPTH0) ? randasc() : s[i-DEPTH0]; } puts (s); } } randasc() { #if 1 return ('!'+rand()%92); #else return ('a'+rand()%26); #endif } Try passing it this file as the standard input: 22222222222222222 11111111111111111111111 2222222222222222222 11111111111111111111111 22222222222222222222 11111111111111111111111 22222 22222 11111 22222 22222 11111 22222 22222 11111 22222 22222 11111 22222 22222 11111 22222 22222 11111 22222222222222222222 11111 2222222222222222222 11111 22222222222222222 11111 You'll get this output: X X X X "i`<$$Co6&`R(D(v"i`<$$Co6&`R(D(v"i`<$$Co6&`R(D(v"i`<$$Co6&`R(D(v"i`<$$Co6&`R(D ( dZ<$wamwBy&>`,QFdZ<$wamwBy&>`,QFdZ<$wamwBy&>`,QFdZ<$wamwBy&>`,QFdZ<$wamwBy&>`, Q rHt&{:7Z,o:.sw5[rHt&{:7Z,osw5[rHt&{:7Z,osw505[rHt&{:7Zosw505[rHt&{:7Zosw505[rR H 3C&B[8g"EzQy{lW_3C&B[8g"Ez{lW_3C&B[8g"Ez{lW_3S3C&B[8g"z{lW_3S3C&B[8g"z{lW_3S3y C {TAtrJyiQ?fiVF!G{TAtrJyiQ?VF!G{TAtrJyiQ?VF!G{T]TAtrJyi?VF!G{T]TAtrJyi?VF!G{T]s T #<sf!Q1`I|r?FLoB#<sf!Q1`I|FLoB#T#<sf!Q1`ILoB#TaT#<sf!Q1`ILoB#Ta#<sf!#Q1`ILoB#T a \qy5:nm$LuSD0hh7\qy5:nm$Lu0hh7\x\qy5:nm$Lhh7\x"x\qy5:nm$Lhh7\x"\qy5:-nm$Lhh7\x " /<bic$[#7hrqKUm`/<bic$[#7hKUm`/7/<bic$[#7Um`/7r7/<bic$[#7Um`/7r/<bick$[#7Um`/7 r u)ZUw(L,'O)X\L&Xu)ZUw(L,'O\L&Xu|u)ZUw(L,'L&Xu|y|u)ZUw(L,'L&Xu|yu)ZUwy(L,'L&Xu| y ;rmy9`3`#YPTdg:,;rmy9`3`#Ydg:,;(;rmy9`3`#g:,;(7(;rmy9`3`#g:,;(7;rmy94`3`#g:,;( 7 4U,yml1w^N7d;f964U,yml1w^N;f964&4U,yml1w^f964&;&4U,yml1w^f964&;4U,ym{l1w^f964& ; ?"A0+;<>Y8igID(]?"A0+;<>Y8ID(]?"A0+;<>Y8ID(]?"?"A0+;<>Y8ID(]?"?A0+;<O>Y8ID(]?" ? D0tscheRl5hfJx.cD0tscheRl5Jx.cD0tscheRl5Jx.cDeD0tscheRl5Jx.cDeDtscheiRl5Jx.cDe D -AaV^hv,r7f6%<)R-AaV^hv,r7%<)R-AaV^hv,r7%<)p)R-AaV^hv,r7%<)p)R-aV^hv>,r7%<)p)R - IRW)ytVbWqd^]qi(IRW)ytVbWqd^]qi(IRW)ytVbWqd^]qi(IRW)ytVbWqd^]qi(IRW)ytVbWqd^]q i BX(Aqq`^Y-z8v=[gBX(Aqq`^Y-z8v=[gBX(Aqq`^Y-z8v=[gBX(Aqq`^Y-z8v=[gBX(Aqq`^Y-z8v= [ Enjoy! David ********************************************** SIRDS Conversion letter From: wchaga@vela.acs.oakland.edu (William C. Haga) Subject: Grandma sees SIRDS Date: 28 Jun 1993 04:18:32 -0400 Being one who has used wide-eyed vision on chain link fences ever since I was a kid, I was able to see the images in SIRDS right away. But I've had difficulty explaining the technique to friends. Today I had the latest Games magazine with me at my parents house. Games is running another contest using SIRDS, so there are three in the latest issue. This time I thought of the reflection idea. So I opened mom's china cabinet, put the magazine against the glass in the door, and told mom to keep looking at her own reflection in the glass until the image appeared. It took less than thirty seconds. When she saw the 3d train engines, I was subjected to a squeal of delight that I hadn't heard from her for a long time. "EEK! IT'S COMING OUT AT ME! IS THIS EVER NEAT!". Dad tried for about a minute but gave up. About an hour later, mom and I heard a shout. We went to the dining area, and there was dad with the magazine against the glass in the door. "Isn't that just the most amazing thing!", said he. Later they were making jokes about teaching old dogs new tricks. Bill (wchaga@vela.acs.oakland.edu) |