Mail Archives: djgpp/1994/02/16/22:34:18
From: IN%"rivero AT pinon DOT ccu DOT uniovi DOT es" "Raul Rivero" 12-JAN-1994 03:52:46.21
Two (or three :-) months ago I released the LUG library, but there was
a problem, the manuals were in spanish.
This is the announcement of the english version. So ... welcome to
the LUG Library v1.0 !!!.
What is LUG ?
LUG is "Libreria de Utilidades Graficas" or, in english, "Graphic
Utilities Library", and it's what is: a library of subroutines for
image manipulation.
What you get ?
i . interfaces with file formats:
- compuserve's gif
- zsoft's pcx
- truevision's targa
- sgi's rgb
- aldus' tiff
- aldus' postscript
- alias' pix
- wavefront's rla
- urt's rle
- pbm/pgm/ppm
- rgb
- raw
- rayshade's heightfield
- jpeg
ii . image editing functions:
- resampling
- blur
- sharpening
- cut
- paste
- median filter
- masks
- histogram equalization
- ... and so on ...
iii . image viewers:
- for Silicon Graphics and IBM RISC 6000 ( GL Library )
- for HP9000 series ( Starbase Library )
- for any kind of X11 plattforms ( Xlib Library )
- for PC386/486 with DJGPP compiler ( GRX Library )
- for Linux ( VGA and VGAGL libraries, text mode )
... and it's a LIBRARY!!!, not a program. YOU! will be the person who
write the programs, not others. Excitant, isn't it?.
And example?.
You have a wonderful 735 (hp9000) which calculates the fast fourier
transform in nano-seconds, but what if you have to display all these
images on a PC ?:
#include <lug.h>
#include <lugfnts.h>
main( int argc, char **argv )
{
bitmap_hdr in;
read_8bitmap_file( argv[1], &in, 512, 512 );
write_gif_file( argv[2], &in );
}
Too easy, isn't it ?. A more complex example ?.
We wanna add a signature to a lot of images, display it in our SGI and
write it in 256 colors TIFF format:
#include <lug.h>
#include <lugfnts.h>
#define SIGNATURE "/usr/people/rivero/.signature.tga"
main( int argc, char **argv )
{
bitmap_hdr in, super, out;
bitmap_hdr aux;
/* Read the input file ( any format ) */
read_lug_file( argv[1], &in );
/* We'll need a true color image */
if ( in.depth < 24 ) {
copy_bitmap( &in, &aux );
freebitmap( &in );
to24( &aux, &in );
freebitmap( &aux );
}
/* Read the super image */
read_tga_file( SIGNATURE, &super );
/* Fade them */
chroma_bitmaps( &in, &super, &aux );
/* But we wanna a 256 colors image */
quantize( &aux, &out, 256 );
/* Show it (the true color image) */
show_bitmap( argv[2], &aux, 0 );
/* And write it */
write_tiff_file( argv[2], &out );
}
I hope you get it :-).
LUG have been tested on SGI, HP9000 (s300/400/800), INTERGRAPH, DEC,
IBM R6000 and PC (Linux/MSDOS) machines, and it appears work fine.
If your machine is a PC with MSDOS, you'll need the DJGPP compiler ( or
an equivalent ).
The original site distributor of this package is telva.ccu.uniovi.es
(156.35.31.31): /uniovi/mathdept/src/liblug-1.0.1.tar.gz.
Enjoy !.
--
===================================
Raul Rivero
Vicerrectorado de Estudiantes
Universidad de Oviedo
Arguelles, 39, 2o.
33003 - Oviedo
Spain
---------------------------------
rivero AT pinon DOT ccu DOT uniovi DOT es
---------------------------------
"Es muy duro ser romantica y
ninfomana a la vez", Ariadna
Gil en el corto El Columpio.
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