Message-ID: 3A18927A.CA5B12A4@planetinternet.be
To: Gerrard.Jenner@luminova.com.au, TIFF Mailing List <tiff@olympiakos.com>
Subject: Re: Reading other formats beside RGBA
From: Joris Van Damme <as.van.damme.joris@planetinternet.be>
Date: Mon, 20 Nov 2000 03:54:50 +0100
Organization: AWare Systems
References: <000201c05286$7b346320$1800a8c0@luminovaintranet.com.au>
Sender: owner-tiff@olympiakos.com


Gerrard Jenner wrote:
> Is there a TIFFGetR/G/B/A equivalant for a single byte

The RGBA level is an extremely high, and, as you noticed, extremely
wastefull level. In fact, in my opinion it shouldn't even exist. If you
want to deal with the data in a more appropriate way, you'll have to
drop down the lower level. This means handling scanlines/strips and
tiles (and, if you also want to deal with downsampled ycbcr, encoded
strips). The help that comes with LibTiff includes info on that.

My advice is to forget about RGBA.


Joris


