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- Xref: sparky comp.compression:2856 alt.binaries.pictures.d:3845 alt.graphics.pixutils:1833
- Newsgroups: comp.compression,alt.binaries.pictures.d,alt.graphics.pixutils
- Path: sparky!uunet!darwin.sura.net!jvnc.net!yale.edu!cmcl2!lab.ultra.nyu.edu!dimitrov
- From: dimitrov@lab.ultra.nyu.edu (Isaac Dimitrovsky)
- Subject: announcing GIFBLAST 1.1 - a GIF compressor (new & improved)
- Message-ID: <1992Jul29.010817.4953@cmcl2.nyu.edu>
- Summary: a lossless GIF file compressor
- Keywords: GIF,compressor,lossless
- Sender: notes@cmcl2.nyu.edu (Notes Person)
- Nntp-Posting-Host: lab.ultra.nyu.edu
- Organization: New York University Ultracomputer Research Lab
- Date: Wed, 29 Jul 1992 01:08:17 GMT
- Lines: 39
-
- []
- I have posted to alt.binaries.pictures version 1.1 of GIFBLAST, a program
- that I have written for the PC.
-
- What is GIFBLAST?
- GIFBLAST is a compressor designed especially for GIF files. The usual file
- compressors (PKZIP, ARJ, etc.) do not work on GIF files; GIFBLAST does.
- When you run GIFBLAST on a GIF file X.GIF, you get a compressed file X.GFB
- that is usually 20-25% smaller. In order to view this file you have to
- decompress X.GFB to get back the original X.GIF file. The compression used
- in GIFBLAST is lossless, i.e. it perfectly preserves all image pixels and
- other information in GIF files.
-
- What can I use GIFBLAST for?
- The compression/decompression algorithm used in GIFBLAST is quite slow,
- so you would probably not want to store frequently viewed GIF files in
- compressed form. However, GIFBLAST should be useful in applications
- where getting maximum compression is important, such as:
- - Storing GIF files on bulletin boards for downloading.
- - Posting GIF files on usenet.
- - Transmitting GIF files via modem.
- - Sending GIF files on floppy disk.
- Because there is no loss involved when compressing with GIFBLAST,
- the user need not be concerned with harming the image or introducing
- compression artifacts.
-
- Changes from version 1.0 of GIFBLAST:
- - The compression algorithm is improved.
- - Now works on images with fewer than 8 bits per pixel.
- - Fixed a few bugs.
-
- If there is interest, I will also post generic C code for GIFBLAST
- so that people can use it on other platforms (if you're interested,
- send me email - don't post).
-
- Isaac Dimitrovsky (dimitrov@lab.ultra.nyu.edu)
- "Sincerity is *the* most important thing in show business -
- so once you learn to fake that you've got it made."
- - Joe Franklin
-