Re: Gifs and Jpegs on a IIgs?

[lesherjt@vuse.vanderbilt.edu (John Lesher)]

Mitchell Spector (spec@vax2.concordia.ca) wrote:
: In article lesherjt@vuse.vanderbilt.edu (John Lesher) writes...
: >
: >Mitchell Spector (spec@vax2.concordia.ca) wrote:
: >
: >: 	I think there may be a shell utility (requires Orca or GNO)
: >: which can create JPEG from other existing image files, although there's
: >: little point in doing so. Most multi palette Super-Hi-Res images
: >: are 8-bit color at most, even the majority of 3200 color images rarely
: >: exceed a total of 256 distinct colors (there may be 200 separate palettes,
: >: but often colors are repeated more than once in each 16-color palette).
: >: The only advantage then would be the higher compression used by JPEG.
: > 
: >The Shrinkit file is called jpeg.v6.shk.  It's available at either
: >apple2.caltech or ground.

: 	I just looked on my hardrive, that's it. It comes as two shell
: applications, "cjpeg" (compress) and "djpeg" (decode). The former will 
: move the following formats into JPEG: PPM, PGM, BMP, GIF, Targa and RLE.
: It would require two steps and one of the desktop programs I mentioned
: before to convert Super-Hi-Res into JPEG (ie, SHR->GIF->JPEG), though
: I don't see any real advantage or reason for doing so.
: 	 
: >Tilghman

: Mitchell Spector
: spec@vax2.concordia.ca

It comes with another, JPEGTRANS, which does I-don't-know-what.

Tilghman