this post was submitted on 17 Jan 2026
55 points (96.6% liked)

Programming

24501 readers
170 users here now

Welcome to the main community in programming.dev! Feel free to post anything relating to programming here!

Cross posting is strongly encouraged in the instance. If you feel your post or another person's post makes sense in another community cross post into it.

Hope you enjoy the instance!

Rules

Rules

  • Follow the programming.dev instance rules
  • Keep content related to programming in some way
  • If you're posting long videos try to add in some form of tldr for those who don't want to watch videos

Wormhole

Follow the wormhole through a path of communities !webdev@programming.dev



founded 2 years ago
MODERATORS
top 5 comments
sorted by: hot top controversial new old
[–] mindbleach@sh.itjust.works 8 points 2 days ago (1 children)

I don’t believe I’ve ever seen shape utilized in generated ASCII art

Ah, someone's never seen 8088 Corruption. The encoder was a brute-force comparison of source pixels with downscaled / blended characters in CGA's few available colors.

... wait, AAlib definitely uses shape. Is the author just new to ASCII art?

Killer effort, regardless.

[–] Redkey@programming.dev 4 points 1 day ago (1 children)

When I was in my teens and twenties, I used to believe that if I thought of something that I'd never heard of before, I must have been the first person ever to come up with it.

Now that I'm older and the Internet is ubiquitous, when I have those moments I go straight to a search engine. And even if I'm not the first, I still feel pretty good about discovering whatever it is for myself.

[–] mindbleach@sh.itjust.works 3 points 1 day ago

Hell, I'm relieved when someone beat me to it. Means I can check it off my to-do list.

'I bet you could combine Wine and QEMU' was on there for a while, and oh thank god, FEX is serious business now.

[–] tal@lemmy.today 6 points 2 days ago (1 children)

I was kind of interested in doing this for Unicode a while back, which has the potential to provide for a lot more possible characters and thus a lot more-accurate renditions. If you don't care about real-time operation, I suspect that you can do this with off-the-shelf software by just writing a small amount of code to generate an image for each character


a shell script driving ImageMagick could do it


and then feeding it into photomosaic software, like metapixel.

The major limitation is that unless you're just interested in doing this for the text-based aesthetic and are actually rendering and presenting an image to the end user


think something like Effulgence RPG, Warsim, Armoured Commander II, Armoured Commander, Cogmind, SanctuaryRPG, Cataclysm: Dark Days Ahead, Stone Story RPG, Roots of Harmony, and so forth


you can't control the font that the thing is rendered in on the end user's computer. And the accuracy of the rendering degrades the more the typeface used on an end user's computer differs from your own.

It'd probably be possible to build some kind of system that does take into account the differences for different typefaces, scores characters higher based on checking for character similarity across different typefaces.

Note that there are also at least two existing libraries out there


what I can think of off the top of my head


that will do image-to-ASCII conversion


aalib and libcaca, the latter of which has color support. I also posted a tiny program some time back to generate images using the colored Unicode tiles, and I imagine that someone out there probably has a website that does the same thing.

[–] tal@lemmy.today 3 points 2 days ago

I apparently actually did two of these on different occasions, using different, restricted Unicode character ranges (ones that only look at the value of the character as a whole, no subpixel rendering). Can't find the (newer) color one, but the black-and-white one:

    ░                                                                         
  ░░░░░░░                                                                     
 ░▒▒▒▒▒▒▒░░░                                                                  
 ░▒▓▓▓▒▒▒░░░░░                                                                
 ░▒▓▓▓▓▒▒▒▒▒░░░░░                                                      ░░░    
 ░▒▓▓▓▓▓▓▓▒▒▒▒▒▒▒░░                                              ░░░░░░░░░░░░░
 ░▒▓▓███▓▓▓▓▒▒▒▒▒▒▒░░                                         ░░░▒▒▒▒▒▒▒▒▒▒▒░░
 ░▒▓▓▓████▓▓▓▒▒▒▒▒▓▒▒░░                                 ░░░░░░▒▒▒▒▒▒▒▒▒▒▓▓▒▒░ 
  ░▒▓▓▓███▓▓▒▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░             ░░▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▓▓▓▒░  
   ░▒▓▓▓█▓▓▓▒▒▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░░▒▒▒░░░░░░░░░░░░░▒▒▓▓▓▓▓▓▒▒▒▒▓▓▓▓▓▓▓▒░   
    ▒▓▓▓██▓▓▓▒▒▒▒▒▒▓▓▓▒▒░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░░░▒▒▒▓▓▓▓▓▒▒▒▓▓▓▓▓██▓▓▓▒░    
    ░▒▓▓▓████▓▓▓▓▓▓▓▓▓▓▒░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░▒▒▒▒▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓█▓▓▓▒░     
    ░▒▒▓▓▓████▓▓▓▓▓▒▒▒▒▒▒░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░▒▓▓▓▓▓▓▒▒▒▓▓▓▓▓▓▓▓▒░       
    ░░▒▓▓▓▓██▓▓▓▒▒▒▒▒░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░▒▒▒▓▓▓▓▓▓▓▓▓▓▓▓█▓▓▓░░        
     ░▒▓▓▓▓▓▓▓▒▒░░░░░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░░░▒▒▒▒▓▓▓▓███▓▓▓▒░          
      ░▒▓▓▓▒▒░░░░░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░░░░░░▒▒▓▓██▓▓▓▓▒░           
        ▒▒▒░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░░░░░░▒▒▓▓▓▓▓▓▒░            
      ░░░░░░░░░░░░░░▒░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░░░░░░░░▒▒▒▓▓▓▒░             
      ░▒▒▒░░░░▒▒▒▒░░▒▒▒▒▒▒▒▒▓▓▓▓▒▒▒▒▒▒▒▒▒▒▓▓▒▒▒▒░░░░░░░░░░▒▒▒▒▒░              
     ░░▒▒▒▒░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▓▓▓▒▒▒▒▒▒░▒▒▒▓▓▓▒▒▒▒▒░░░░░░░░░░▒▒░               
    ░░▒▒▒▒▒▒▒▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒▒▒▒▒▒▒▒▒▒▓▓▓▓▒▒▒▒▒░░░░░░░░░▒░░               
    ░░▒▒▒▒▓▓▓▓▓▓▓▒▒▒▒▓▓▓████▓▓▒▒░░░░▒▒▒▒▒▒▒▓▓▓▓▓▓▓▓▓▓▒▒▒░░░░▒░░               
   ░▒▒▒▒▒▓▓▓▓▓▓▓▓▒▒▒▒░░░▒▒▓▓▓▓▒▒░░░░░░░░░▒▓▓████▓▓▓▓▒▒▒▒▒▒░░░░░               
  ░░▒▒▒▓▓▓▓▓▒▒▒▓▓▓▓▓▒▒▒░░░▒▒▓▒▒░░░░░░░░░░░▒▓▓▓▒▒▒▒▒░░▒▒▒▒▒▒░▒░                
    ░▒▒▓▓▓▒▒▒▓▓▓▓▓▓▓▓▓▒▒▒▒▒▒▒▒░░░░░░░░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░                 
     ░▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒▒░░░░░░░░░░░░░░▒▒▒▒▒▒▓▓▓▒▒░▒▒▒▒░                 
       ░▒▓▓▓▓▓▓▓▓▓▓▓▒▒▒▒▓▓▓▒▒▒░░░░░░░░░░░░░░▒▒▒▒▒▒▒▓▓▒▒▒░░▒▒▒░                
        ░▒▓▓▓▓▓▓▓▓▒▒▒▒▒▒▓▓▒▒▒▒░░░░░░  ░░░░░▒▒▒▒▒░░▒▒▒▒▒▒▒▒▒▒▒░                
         ░▒▓▓▓▓▓▓▓▓▓▒▒▒▒▓▓▒▒░░░░░░      ░░░░▒▒▒▒░░▒▒▒▒▓▓▓▓▓▒▒░                
           ░▒▓▓▓▓▓▓▓▒▒▓▓▓▒░░  ░░░░░▒▒▒░░   ░░▒▒░░░▒▓▓▓▓▓▒▒▒▒░                 
            ░▒▒▒▓▓▓▓▓▓▓▓▒░░   ░░▒▓▓▓▓▓▓▒░░  ░░▒▒▒▓▓▓▓▓▒▒▒▒░                   
                 ░▒▒▓▓▓▓▒░   ░▓▓█▓▓▓▒▒▓▓▓▒░  ░▒▒▓▓▓▓▒▒▒▒░                     
                    ▒▒▓▒▒▒░░░▒▓███████▓██▓░   ░▒▓▓▓▒░░                        
                      ▒▒▒▒▒▒▒▒▓████▓▓████▓░   ░▒▒▒░                           
                        ░▒▒▒▒▒▓▓▓██████▓▒▒░░░░                                
                          ░▒▒▒▒▒▓▓▓▓▓▓▓▒▒▒▒░░                                 
                            ▒▒▓▓▓▓▓▓▓▓▓▒░░                                    
                              ░░▒▒▒▒▒▒░░                                      

Is generated by the program with this uuencoded source:

source

begin 644 unicode_image.tar.xz
M_3=Z6%H```3FUK1&`@`A`18```!T+^6CX"?_!IM=`":8269IV=F-Y,!%M1>4
MZX(9LR,YMG1:D2XCM%DZ,0N4%>'\;I?0D"7/H:OI15<M6G@8HO/[&((J'=B.
MXY\G/[7D"Y)B$O)IC]DM9Y@^\4T?'9(.Z.4+7IDF/T0&\7`M5+G#=C!?(>(U
M+-C2%PZ!"(Q'Z_/D^%"[PVKX:A:OKH5WF?AQ=CD_AAS]<3<THTMC0S8FG\<A
MZ;A-_9H?)5S'YG5A?0WUQ7FR0+IS\0AEUYY9QFMY?"$);\U%_R0NK(ZZ/Y&J
MVA;@#O-P.6W8PW']0U"<S'NHB=.(/)OX[<1&UF@M8+GXPGVFQB_+K/WD01ZO
MO#+E!CK;^`V-WGH^?0V5M!IK[KR&]`IR<>6D+ONPJT6E\CZJ^KKZ,W?3O"2K
M!/GHQ&TDN';;P#UC;)+HRPH$`_8JM#ZV`\I6=,PO=U#S33IZ=R!K2IF]\1D@
M*@I6;)=1P[3ICJ%,C5VTH^%^^N7(`)5NO*-SG)Y`QA_WK>PA8;TJ+X2)EV?3
MI.G"[*>WWDZ7\Q_8`@,?X8C9YSMNGQ.S79!10SGB!PGY<3)L+A>\T4NE3RCH
M@$<!]40^I5;'[)@>$KCW3*:VMQ")"FQ!"L?^:Y5K)WM]*CV<",@L38:E&'G;
MOH/\?B8-H-/5$-+1`SZ2O6RHY>T@2+Q"LM7T32<P'/M;:&`9G%<:2]0W95K<
M\.;8"EQMW`_,%NF[4)3]`F-BE^_T2,`,VV:G?3TUJ"IH\A@>7Y8:?5[I8HAX
M/S[+K[U+U);"B>&TTWB[]4K_N9HNW6P5\,!8G[BS*%\3<$#RM"O`6C#I1>3W
ME/8D\";AO1[@@M<^$07W%./W$^^MXKWV/QE?(SEU3GAF"?/TXQ_1N>#/)-;8
M<MT]?:XBQTJ%9'[+D!X/9^"U.Y*2A(8A/AJ\!K^V\)9>''<,=_M*GQ;D4XU&
M0EL_A7==:2!F6+.18],W)'0*A8VHHT@F\^+U@*=PAW&]_UDA'O3HL,)67*56
M:4QHF]DC7*EMI@?8=/,8;'O4[2W^#V!$L.(O\+@E"I[>5AF7V].]DSR0?>4E
MX,HXX%S-A'V'+F)3(0_FX[O!VNO&D/BL`T<!(LJ,(@3!S8LJ[><9CHP*Z!1N
M*W=F7"R-"ZZ_7"_NQ:8M=&RU\7`Z`<J>2YY>W2B\R7!YX(:UE+7?[1HLZ6?B
M_$Z<[I3[+!'?["<`BV0HHVNVZ$?*E!CLQ,Q'U$5$IQ?#B#+P)WE/$$-*'U<E
M%+7[;;^I\)F++WU`\\BL@X5,*B+]OLWQ&=W!,3*4_5Z0'R\2N/\];P>]W2<(
M-7Z3$YL3&6;-"*NTT2_Z1P=4">JZT,0Y$Q`L;RU@2\X!6>NA6D:5#HOIP#H]
MH)2I8$WFSU,1M9OC73J.1T1-YWD[%EH?1E*H#MV/[+5HSKGU.-%-'Z)QI=$\
MV>24Q6&KMA*-=L#[#I[2'0$86N)&8E/==`F@,S#5,`)(-KDT6A9IK-/%6OA@
M@FI$$#7G>&.Z!8[?8:F==P>HX>WF&.?(9V6^WM`J[CVD`L]9<&\6P_U?*WN`
MLI*_M*H;SP58M&#X!>*U*^J*XO@UT"&SIGH1%(K-=7DN@=HD6`S2EET,60JV
MI_\%)%6Q_^3CW_5`HQ;G084_7J0'F9DDH*%`SY*.D1BP`"D_QO=5,F?$-HAG
M_FP7H+LUTX`^%F-[SV(C'N*+AXE=&!+'OT$)RYGQ/HX,L8W(D%G9J=P!6+*$
M)F20)=%>9ZI).Z0`I'T/OT#SUR_:(O0U1*2-:,\D0S52^NI?HL69"POCNH&X
M_HXLQZB3EL-Z<)4.!<<BDJX3H"Q`L'&"RLO/%]17EV.5R@/$,%GYE#U(,Z'.
M6#]?M?@0VYB%WU2-4E:Z&9RN,"SCQAYJ70='?0`L5JC6GG#:1BG]DBCY;N)<
M>[;>JU-P]W=*RQG_KX;[>Y-0O.>_BS[M!=3Y#98EA`S8J/\1S=Z..*RC^;+U
M!.(#>E-V^?_+/M323Q,+EM-95M%CT#G[XO0FH/`.&`__EU<3\=+#>7?FR*NY
M9MA;$1+KD8?V@Y8XE7`(*;.N\KEF1]T4!OYS1+%#*S9&[0-#E"FRGA^\L[^A
M\76@2CMV<J_S92KW%;UO$.=R!3!P]OD.WD@*ZE(.;>H)8L]IMC;<YHPNH343
MY,JGKBM7M:!:S]$UJ7Y-/A'>Z]^7LV*Y.]N\MN_#%%%>)IH_A_:G46]+E.M;
MUA@I>99IP916P;7A48N3VF+;&!__1Q<QF8AU`XF-LJ./^6J+@+JCLICOF=I-
M.U"KKV.._JR/;P(````4=99=LD1P/P`!MPV`4```*JOOO;'$9_L"``````19
!6@``
`
end

I've also seen various programs that use the Braille Unicode characters for higher-resolution bitmap rendering, like mapscii, and I suspect that someone's probably written software to convert to that.