ASCII Art
ASCII art is the [1]art of (mostly manually) creating graphics and images
only out of [2]fixed-width (monospace) [3]ASCII characters. Strictly
speaking this means no [4]Unicode or extended ASCII characters are allowed
-- these would rather be called Unicode art, [5]ANSI art etc., though the
term ASCII art is quite often used loosely for any art of this kind. If we
keep being pedantic, ASCII art might also be seen as separate from mere
[6]ASCII rendering, i.e. automatically rendering a bitmap image with ASCII
characters in place of [7]pixels, and ASCII graphics that utilizes the
same techniques as ASCII art but can't really be called art (e.g. computer
generated diagrams); though in practice this distinction is also rarely
made. Pure ASCII art is [8]plain text, i.e. it can't make use of [9]color,
text decoration and other [10]rich text formatting.
This kind of art used to be a great part of the [11]culture of earliest
[12]Internet and near-Internet (e.g. [13]BBS) communities for a number of
reasons imposed largely by the limitations of old computers -- it could be
created easily with a text editor and saved in pure text format, it didn't
take much space to store or send over a network and it could be displayed
on text-only displays and [14]terminals. The idea itself even predates
computers, people were already making this kind of images with type
writers, e.g. some poets were formatting their poems with typewriters to
picture-shapes. Despite the technical limitations of displays having been
overpassed, ASCII art survives even to present day and lives on in the
[15]hacker culture, among [16]programmers, in [17]Unix and "retro" game
communities as well as on the [18]Smol Internet, among people who just
want to [19]keep it simple and so on. ASCII diagram may very well be
embedded in a comment on a text-only forum or in source code to explain
some spatial concept. ASCII art may even be superior for making certain
types of drawings from purely user perspective exactly by being
simplified, it can be performed merely with keyboard with little
distraction (not caring about colors, not having to focus on right angles,
to care about line thicknesses, switching tools, deleting imprecise
strokes, ...), similarly to how for example it may be easier to create a
rough model of a house in [20]Minetest than to model it in [21]Blender. {
I found that for making quick diagrams I prefer ASCII art to graphic
tools. ~drummyfish } We, [22]LRS, highly advocate use of ASCII art
whenever it's [23]good enough.
Here is a simple 16-shade ASCII [24]palette (but watch out, whether it
works will depend on your font): #OVaxsflc/!;,.- . Another one can be
e.g.: WM0KXkxocl;:,'. .
Here are approximate brightness values for each printable ASCII character,
with 0 being black and 1000 white (of course the values always depend on
the specific [25]font you use):
{ I obtained the values by shooting a screen with some generic monospace
font in gedit or something, then made a script that computed the values
and ordered them. ~drummyfish }
@ 577 P 727 A 777 ? 827 / 867
W 615 w 735 Z 777 I 830 > 867
M 640 3 740 h 779 j 831 \ 867
0 641 X 741 Y 786 C 834 < 868
Q 656 D 744 [ 797 ) 836 c 870
& 658 V 745 T 797 ( 837 + 874
% 664 b 746 e 798 l 837 J 892
R 664 p 747 } 800 x 838 " 911
8 676 5 748 a 800 i 848 ; 912
# 685 d 748 { 803 z 851 _ 912
O 685 2 750 ] 809 r 853 ~ 924
$ 687 4 750 y 810 ^ 854 : 936
B 702 S 750 1 811 s 855 , 942
6 707 q 751 7 812 v 855 - 953
9 708 k 759 F 812 ! 856 ' 954
g 711 G 765 o 813 t 856 . 968
N 715 K 767 f 815 * 857 ` 969
U 724 E 768 u 825 = 860 1000
m 727 H 771 n 826 L 866
And here are some attempts at actual ASCII art:
_,,_
/ ';_
. ( 0 _/ "-._
|\ \_ /_==-"""' .~~~~~~~~;~~~~~~~~.
| |:---' ( | ASCII | tables |
\ \__." ) Steamer |========I========|
'--_ __--' Duck! | are | |
|L_ |--------{ =) |
| the | |
|--------+--------|
[] [][][][][] | best | tables |
[][][] [][] |________|________|
[][] []
[] XX XX[]
[] XXXX []
[][] [] ____ _____ _____
[][][] [][] [ _) [ _ \ / ____]
[] [][][][][] ) { } |_) )\___ \
| |__/|| _ { ___} |
SAF FTW }_____|}_{ \_][_____/
("\/") ("\/") ("\/")
\ / \ / \ /
\ / \ / \ / KEEP IT SIMPLE
\/ \/ \/ ~~ BRUH ~~
^
|
| _.--._ _.--._
| .' '. .' '.
|/__________\____________/__________\______
| \ / \
| '. .' '.
| `'--'` `'-
|
V
/|_/| why is
'.|.' . : ___ (._. ) everyone
--{O}-- .;::.':.' __{ )_ /\ /) so
.'|'. _.:'' ' : {_ \ } _} VV retarded
,__|| |_, \_{__/
/\\ \|_| \\ __ _ .-.
/ \\ \\ ,' '. (_) __ \ \
/____\\______\\ ( o ) _ |__] ) )
\,,,|,,,,,,,/ '")("o (_) / /
|___|_[H]___|=|=|=|=|=|=|=|=| '-'
_ _ ___ _ _
____ | |__ ___ __| | ___ / __] ____ | | (_)
/ _ ]| _ \ / __] / _ | / _ \ [ _] / _ ] | '--. ;";
( (_| {| |_) )| (__ ( (_| || ___) | | ( (_| | | .-. | | |
\____]|____/ \___] \____| \___] |_| \__ | |_| |_| |_|
_ _ _ [___/
(_) | | __ | | _ _ ____ ___ ____ ____ ____
;"; | |/ / | | | "-" || _ '. / _ \ | _ \ / _ | | _ |
| | | { | | | ;_; || | | |( (_) )| |_) )( (_| | | | "'
_/ | |_|\_] \_\ |_| |_||_| |_| \___/ | __/ \__ | |_|
\-" _ |_| |_|
____ | | _ _ _ _ _ _ _ _ _ _ ____
( __|[ ] | || || [ ] | | |/\| | | \_/ | [ | | | |__ ]
\_"\ | |_ | || | \ " / | ' ' | } _ { \ \| | ,' /
[____) (___]',__,' \_/ \_/\_/ |_/ \_| _) / |____]
\_.-'
The following is a raster picture auto-converted to ASCII: { For copyright
clarity, it's one of my OGA pictures. ~drummyfish }
!.-
clxVl.
c###xl,
,.- -,/ac/l!,
.,,,;;,.;.---!c..;.-
-!;.;,;cl;c##aV#s,....ca//cfs!;;.--,,,;
!;;/s/,,c/slc;,;/#l!as;!f/c;;cVOfOf;---.s#c-
-OOfl,,,,;/,,,!ll.!;!,,!c/!;;!/;cxxO/.;aO##a/,.,!,c;.
!,;,,,,!!,/f/c!a,,,!//c;;;;;;;!cVOV/lf/......------,l/;.---
!.!/!/!/;,//c! ;#s,///;;;;;;!c/a#l;-.----....------.,...,..;,-
;x/;;;cslsac #a!,,;;/,,./casl,---..!cxfs/.,.,!x#xl....-.;,/l,
-;;;;;- s;!V....;;;lca#/.---;f#Vxcf######s;.,..-----,,;ssa.
xxl!,,,.!,//c##l ;/c!.,;....c#/.;ac,.,----.,,,fs;a,
!Os;!!c,scfa##x- ---,,,,/,,..###x#;.,!-!,-.lc/cfx/#f
xOOs##lO##f;;, ,-,,,,,,,;l#V;,!/,,,;.#--l#.;;/!,,#!
- !##,,,,, -ax;,,,,,.,f/...c//!./;-#,-##!,,c! ,l;/-
/#c- -/, ##/;,,,,,;./,,,;lclll/ -.V##.,,,c! !.,/;
/##! -.;,;#/,,,,,;,l,,,,,sl,x### - ,#/,,,,c; c,.,l/.
ls#,,,,l.#f.,,,.ff/;;;;O; ;l/s ---;#;,,;V ./lOcfl!.-
.lf#;,;/!Vl,,,,,xccccs/ ac/,--xf;,,,;# #////f#l,
l/cflc/;.;al/;lclx!, .f//--.;,,,,O f/fcx##l.
;s////l-;f#;,;,-- s//f;,,!,,;/ l#xf.c/!!
,;,//!--;;,,,c !///x.,,,,f- -c/f ./,/
,fl!flll.,!/cc, .ll//f;,,,,/; !;;. ,,;/
lf;!;!O/,;c;l!fc -fllclc/!!,,!l -,;;!- ;;!
////cc;llVcl/f #s/lccx;.!/c/c. .,lc!, !;;
./,,,!c--..,,,! x//cf#fscf/c/f. c,f; ;;!
-f///!!;---,.,!,f .cc!;/!f;;;//sf. .fl! !flls,
- fxl;#/!V/fc/ l! ,!;;;c ;l/lc- ,#Olcs;
- -!,-,l!; x.;a!/cfc ./ff; !.-
{ TODO: what would ASCII art made of ASCII font look like??? ~drummyfish }
The are many tools for this, but for educational purposes this one was
made using the following custom [26]C program:
#include <stdio.h>
const char palette[] = "#OVaxsflc/!;,.- ";
int readNum(void)
{
int r = 0;
while (1)
{
char c = getchar();
if (c > '9' || c < '0')
break;
r = r * 10 + c - '0';
}
return r;
}
void skipAfterNewline(void)
{
while (getchar() != '\n');
}
int main(void)
{
skipAfterNewline(); // skip magic number
skipAfterNewline(); // skip header
int w = readNum(); // read width
int h = readNum(); // read height
skipAfterNewline(); // skip to pixels
for (int j = 0; j < h; ++j) // read rows
{
for (int i = 0; i < w; ++i) // read columns
{
/* The following is a bit cryptic way of reading RGB, averaging it (giving
higher significance to green, for human sight bias) to convert it to
grayscale and then getting it to range 0 to 15 (palette size). */
int v = ((getchar() + getchar() * 2 + getchar()) * 16) / (4 * 256);
putchar(palette[v]);
}
putchar('\n');
}
return 0;
}
This program is extremely simple, it just reads an image in [27]PPM format
on standard input and outputs the image to terminal. Watch out, it won't
work for all PPM images -- this one worked with a picture exported from
[28]GIMP in raw RGB PPM. Also note you have to scale the image down to a
very small size AND its aspect ratio has to be highly stretched
horizontally (because text characters, i.e. pixels, are much more tall
than wide). Also for best results you may want to mess with brightness,
contrast, sharpness etc.
See Also
* [29]ANSI art
* [30]ASCII animation (e.g. [31]vt100 terminal animations,
[32]asciinema, ...)
* [33]pixel art
* [34]plain text
* [35]emoticon
* [36]cowsay
* [37]figlet
Links:
1. art.md
2. fixed_width.md
3. ascii.md
4. unicode.md
5. ansi_art.md
6. ascii_rendering.md
7. pixel.md
8. plain_text.md
9. color.md
10. rich_text.md
11. culture.md
12. internet.md
13. bbs.md
14. terminal.md
15. hacking.md
16. programming.md
17. unix.md
18. smol_internet.md
19. kiss.md
20. minetest.md
21. blender.md
22. lrs.md
23. good_enough.md
24. palette.md
25. font.md
26. c.md
27. ppm.md
28. gimp.md
29. ansi_art.md
30. ascii_animation.md
31. vt100.md
32. asciinema.md
33. pixel_art.md
34. plain_text.md
35. emoticon.md
36. cowsay.md
37. figlet.md