Qbasicnews.com

any way to convert....? Like nathan's star wars thingy?

http://www.glassgiant.com/misc_ascii.php

Jason Earl also wrote a PHP script to do something similar...plus there are also loads of programs that generate ASCII art from images...

I posted code a while ago. It is in C.

I'm a lazy person, so it uses Allegro too Big Grin

Code:
#include <stdio.h>

#include <allegro.h>

#include <string.h>

// This uses a conversion for bitmap only images.

// the conversion is based on Rob Harley's (robert@vlsi.cs.caltech.edu)

// code mapping.

char mapping[]={

' ',',','.','_','-','i','v','g','-','c','i','s','=','e','z','m',

'\'','!','/','2','!',']','/','d','/','(','/','K','Y','4','Z','W',

'`','\\','|','L','\\','\\',')','G','!','t','[','b','+','N','D','W',

'~','T','7','X','V','Y','Z','8','f','5','P','K','*','M','A','@'} ;

// ordered by six-bit numbers in 2x3 cells.

int main(int argc, char *argv[])

{

    BITMAP *bp;

    FILE *pf;

    PALETTE dummy;

    int x,y,xx,yy;

    int i;

    char c;

    char ct;

    char invert=0;

    allegro_init(); set_color_depth(8);

    puts("2 colour bitmap to ASCII converter by Na Than");

    puts("Based on Rob Harley's mapping for 2x3 bitmap cells.");

    puts("Contact me at na_th_an@hotmail.com");

    puts(" ");

    if (argc<3) {puts("ERROR 1 :: Arguments required.");

                      puts("Usage: ASC_B&W INPUT.{BMP|PCX|LBM|TGA} OUTPUT.EXT [invert]");

                      return 1;}

    if (!strcmp(argv[3],"invert"))

        invert=1;

    // Convert

    if((bp = load_bitmap(argv[1],dummy))==NULL)

    {

        puts("ERROR 2 :: unable to open input file."); return 2;

    }

    if((pf = fopen(argv[2],"wb"))==NULL)

    {

        puts("ERROR 3 :: unable to open output file.");return 3;

    }

    puts("Now converting. If you see a wrong picture, maybe the BITMAP is not");

    puts("maped to have 0 for black, 1 for white.");

    if (invert) puts("Doing it inverting colours");

    for(y=0;y<bp->h;y+=3)

    {

        for(x=0;x<bp->w;x+=2)

        {

            // build binary

            c=0;ct=0;

            for (yy=2;yy>=0;yy--)

                for (xx=1;xx>=0;xx--)

                {

                    if (getpixel(bp,x+xx,y+yy) == 0)

                        c += (1<<ct);

                    ct++;

                }

            printf("Done :: %i%\r",1+ (100 * (x+y*bp->w))/(bp->h*bp->w));

            // output character

            fputc(mapping[c],pf);

        }

        fputc(13,pf);fputc(10,pf);

    }

    fclose(pf);

    printf("\n");

    puts("Done :)");

    destroy_bitmap(bp);

    allegro_exit();

}

If you want a compiled version, tell me do. I'll be bothered to upload it.

Ah... so it looks like there isn't any pattern matching, just density. Now, the first person who makes a color matcher + ascii matcher (extra points for pattern matching......) AND makes a Star Wars demo that's several minutes long wins... my appreciation!!!!! Smile

In fact there is a pattern matcher. The ASCII are selected so their shape match the dot patterns (this works with 1 bit files).

For example,

Code:
.X

X.

.X

is translated to ( .

*scratches head*

Oh. Well I didn't really understand your example... or your code. Pointers make things obscure to me...... especially things like "(1<<ct)"..........

Just DL Nate's Jedi2 and Joe's FMV. Those we're koolness!!!!

Quote:*scratches head*

Oh. Well I didn't really understand your example... or your code. Pointers make things obscure to me...... especially things like "(1<<ct)"..........

The program reads blocks of 2x3 pixels that can be ON or OFF (white or black, 1 bit GFX). Depending on the shape in the 2x3 pixels it selects a letter.

Code:
..

XX

..

would translate to "-", for example.

(1<<ct) is just like 2^ct, but faster.

Agamemnus

Plasma

na_th_an

Agamemnus

na_th_an

Agamemnus

relsoft

na_th_an