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		      S D S C   I M A G E   T O O L S

			         Version 2.1
			        December 1992

		        **** RELEASE ANNOUNCEMENT ****

The San Diego Supercomputer Center is pleased to announce the version 2.1
release of its FREE, portable Image Tools software.

The SDSC Image Tools support a wide range of image file formats, including:

	Format  Description
	------- --------------------------------------------------------
	bmp     Microsoft Windows bitmap image file
	cur     Microsoft Windows cursor image file
	eps     Adobe Encapsulated PostScript file
	gif     Compuserve Graphics image file
	hdf     Hierarchical Data File
	ico     Microsoft Windows icon image file
	icon    Sun Icon and Cursor file
	iff     Sun TAAC Image File Format
	mpnt    Apple Macintosh MacPaint file
	pbm     PBM Portable Bit Map file
	pcx     ZSoft IBM PC Paintbrush file
	pgm     PBM Portable Gray Map file
	pic     PIXAR picture file
	pict    Apple Macintosh QuickDraw/PICT file
	pix     Alias image file
	ppm     PBM Portable Pixel Map file
	pnm     PBM Portable aNy Map file
	ps      Adobe PostScript file
	ras     Sun Rasterfile
	rgb     SGI RGB image file
	rla     Wavefront raster image file
	rle     Utah Run length encoded image file
	synu    SDSC Synu image file
	tga     Truevision Targa image file
	tiff    Tagged image file
	viff    Khoros Visualization image file
	x       AVS X image file
	xbm     X11 bitmap file
	xwd     X Window System window dump image file

The tools include extensive support for formats with multiple variants for
different image depths and compression schemes.

Individual sites may reconfigure the Image Tools to support additional
site-specific file formats.  Sample source code is provided as part of
the release.

The SDSC Image Tools include command-line tools for the manipulation of
images in any of the above file formats.  The version 2.1 release expands
the tool suite to include the following tools:

	Tool		Description
	--------------- ------------------------------------------------
	imadjust	Adjust image colors, desaturate, brighten, etc.
	imcat		Concatenate images into multi-image files
	imcltroll	Cycle a color lookup table
	imcomp		Digitally composite images
	imconv		Convert between all supported image file formats
	imcopy		Copy a portion of an image into a new file
	imfile		Display image attributes
	imfill		Fill a region of an image with a color or gradient
	imflip		Flip an image horizontally or vertically
	imformats	Describe image file format support
	imgray		Convert to grayscale
	imhist		Compute an image histogram
	immono		Convert to monochrome
	impaste		Paste an image into another
	imroll		Cycle an image horizontally or vertically
	imrotate	Free rotate an image
	imscale		Scale an image up or down
	imshear		Shear an image horizontally or vertically
	imsplit		Split apart multi-image files

All tool functionality is contained within a C library of functions, making
it easy to create new custom tools.

The SDSC Image Tools are released in binary form for the following UNIX
machine architectures:

	Architecture	Description
	--------------- ------------------------------------------------
	alliantfx2800	Alliant Computers, FX/2800
	crayy		Cray Research, Cray Y-MP (UNICOS)
	decstation	Digital Equipment Corp, DECStation (ULTRIX)
	decvax		Digital Equipment Corp, VAX (ULTRIX)
	hp700		Hewlett-Packard 700
	next		NeXT
	sgi4d		Silicon Graphics, SGI 4D
	sun4		Sun Microsystems, Sun 4 and SPARC

Additional architectures are forthcomming.

The SDSC Image Tools are available for uploading via anonymous ftp from
'ftp.sdsc.edu'.  The anonymous ftp directory tree is structured by
machine architecture, and then by topic.  For instance, to get the SDSC Image
Tools for a Sun 4, use:

	ftp> cd sdscpub
	ftp> cd sun4
	ftp> cd graphics
		or
	ftp> cd [.sdscpub.sun4.graphics]

	ftp> type binary
	ftp> get IMTOOLS_V2_1_TAR.Z imtools_v2_1.tar.Z

For most architectures, software is bundled in both tar and cpio format and
compressed using the UNIX 'compress' utility.

Tool binaries, object library, release notes, and tool and library man pages
(nroff source, post-nroff text, and PostScript) are included.  Tool source
code is included.  Library source is not provided except for sample source
illustraiting how to add support for additional site-specific image file
formats.

00README's and 00INDEX's in the ftp directories explain their contents.
To get one of these, use:

	ftp> get 00README 00README
	ftp> get 00INDEX 00INDEX

Questions about the SDSC Image Tools, or any SDSC software products, may
be directed to:

	E-mail:		info@sdsc.edu
	Phone:		(619) 534-5100, M-F 8am-5pm, pacific time

Thank you.



---
Dave Nadeau						nadeau@sdsc.edu
Advanced Scientific Visualization Laboratory		(619) 534-5062
San Diego Supercomputer Center
P.O. Box 85608   San Diego, CA   92186-9784