From: erik quanstrom <quanstro@coraid.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] Proposed: Image Conversion Server
Date: Thu, 26 Oct 2006 13:34:39 -0400 [thread overview]
Message-ID: <1428058bf96476648b6d09fe307f861f@coraid.com> (raw)
In-Reply-To: <4540E484.3060100@proweb.co.uk>
the images are seperated by channel. man image(6) and draw(3).
a 24-bit image is 1 byte each r, g, b premultiplied by the alpha channel
which is in the fourth byte.
- erik
On Thu Oct 26 12:44:26 EDT 2006, mattmobile@proweb.co.uk wrote:
> Once you've converted the jpegs to plan9 bitmaps, what's the point of
> having them hanging around in memory ?
>
>
> For image editing etc. the plan9 bitmap is not the best structure (imho)
> You'll need the images separated into colour channels, RGBA for
> instance, if you want to do anything interesting with them.
>
> I started such a beast that mounted images as RGB/HSB with alpha and got
> it to do a few tricks, it has a couple of bugs so I never released it.
>
> I think I talked about it on the list but it might have been in IRC
>
> Matt
next prev parent reply other threads:[~2006-10-26 17:34 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-26 13:08 Randall Bohn
2006-10-26 15:01 ` Skip Tavakkolian
2006-10-26 16:38 ` matt
2006-10-26 17:34 ` erik quanstrom [this message]
2006-10-26 18:02 ` maht
2006-10-26 23:39 ` erik quanstrom
2006-10-27 8:46 ` Steve Simon
2006-10-27 9:03 ` Bruce Ellis
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