9fans - fans of the OS Plan 9 from Bell Labs
 help / color / mirror / Atom feed
From: Axel Belinfante <Axel.Belinfante@cs.utwente.nl>
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] shrinking an Image?
Date: Sun, 27 Aug 2006 19:34:30 +0200	[thread overview]
Message-ID: <200608271734.k7RHYVl22017@demeter.cs.utwente.nl> (raw)
In-Reply-To: Your message of "Sun, 27 Aug 2006 10:09:51 -0500." <de2d06a04a48bcc79c109c36edf15cf4@quanstro.net>

Now that you mention this, for one plan 9 image that I converted
using togif and tojpg I had better results after first converting
it using 'iconv -c m8'.
Was I 'unlucky' in needing this additional step, or is that
the usual procedure?

Axel.

> in light of russ' comment, could it be that you are not using the -t
> option for jpg?  the default for jpg/png/etc is to downsample to 8 bits.
> page actually uses "-t9" as it's options.  i've been burned by this 
> many times.  perhaps jpg should default to depth 24 when being
> used as a filter.
> 
> - erik
> 
> On Sun Aug 27 02:55:23 CDT 2006, lucio@proxima.alt.za wrote:
> > > would resample(1) do?
> > 
> > I find that resample(1) is not visually as faithful as (even?)
> > page(1)'s built-in resizer.  I have not explored the possible causes,
> > however.  For JPEG and 2, 4, 8 times resizing (shrinking) I find the
> > cjpeg | djpeg combination to be preferable.


  parent reply	other threads:[~2006-08-27 17:34 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-08-26 21:13 Axel Belinfante
2006-08-26 21:21 ` andrey mirtchovski
2006-08-27  7:51   ` lucio
2006-08-27 14:37     ` Russ Cox
2006-08-27 16:45       ` lucio
2006-08-27 15:09     ` erik quanstrom
2006-08-27 16:46       ` lucio
2006-08-27 17:34       ` Axel Belinfante [this message]
2006-08-27 17:46         ` andrey mirtchovski
2006-08-27 18:22         ` erik quanstrom
2006-08-28 22:17     ` Steve Simon
2006-08-28 23:07       ` erik quanstrom
2006-08-27 17:20   ` Axel Belinfante
2006-08-26 21:22 ` Federico Benavento

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=200608271734.k7RHYVl22017@demeter.cs.utwente.nl \
    --to=axel.belinfante@cs.utwente.nl \
    --cc=9fans@cse.psu.edu \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).