[3577] in linux-announce channel archive
Linux-Announce Digest #868
daemon@ATHENA.MIT.EDU (Digestifier)
Mon Oct 23 17:13:11 2000
Message-ID: <20001023211304.26276.qmail@senator-bedfellow.mit.edu>
From: Digestifier <Linux-Announce-Request@senator-bedfellow.mit.edu>
To: Linux-Announce@senator-bedfellow.mit.edu
Reply-To: Linux-Announce@senator-bedfellow.mit.edu
Date: Mon, 23 Oct 00 17:13:03 EDT
Linux-Announce Digest #868, Volume #3 Mon, 23 Oct 00 17:13:03 EDT
Contents:
WWW: Gimp-Savvy.com News (Carey Bunks)
zgv 5.2 - svgalib picture viewer with thumbnail-based file selector (Russell Marks)
----------------------------------------------------------------------------
From: cbunks@gimp-savvy.com (Carey Bunks)
Subject: WWW: Gimp-Savvy.com News
Date: Sun, 22 Oct 2000 21:40:01 GMT
=====BEGIN PGP SIGNED MESSAGE=====
===== UPDATE =====
Gimp-Savvy.com
http://gimp-savvy.com/
News
- ----
Gimp-Savvy.com moves to a new server. The static and dynamic
site content is now delivered much faster than at the old site.
What is it?
- -----------
Gimp-Savvy.com is a web site providing high-level educational
and practical resources for the Gnu Image Manipulation Program,
a.k.a. the GIMP, and seeking to promote its skillful and
knowledgeable use.
On-Site Resources
- -----------------
The primary resource provided by Gimp-Savvy.com is an intermediate
to advanced guide entitled "Grokking the GIMP", which is available
in its entirety on this web site under an open publication license.
"Grokking the GIMP" covers the use of the GIMP's core tools,
explaining methods for performing operations with layers,
selections, and masks. The basic concepts of colorspaces and their
uses in image editing are developed in detail, and in-depth
instruction is given on the best ways to perform high-level tasks
such as color correction, photo touchup, image enhancement, collage,
and photo montage.
In addition to its conceptual approach to image manipulation,
"Grokking the GIMP" also presents nine major projects. These
illustrate how the GIMP's tools are used to accomplish more
sophisticated image editing tasks and give a clearer picture of
how tools interact and are used together.
To Visit Gimp-Savvy.com
- -----------------------
http://gimp-savvy.com/
Carey Bunks
cbunks@gimp-savvy.com
- --
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From: Russell Marks <russell.marks@spam^H^H^H^Hntlworld.com>
Subject: zgv 5.2 - svgalib picture viewer with thumbnail-based file selector
Date: Sun, 22 Oct 2000 22:31:59 GMT
Reply-To: russell.marks@ntlworld.com
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zgv is an svgalib picture viewer with a thumbnail-based file selector.
Most file formats are supported, and the thumbnails used are
compatible with xv, xzgv, and the Gimp. It can also be used with `zgv
file(s)', to effectively bypass the file selector.
zgv's homepage is here:
http://www.svgalib.org/rus/zgv/
You can also, as ever, download it from Metalab:
ftp://metalab.unc.edu/pub/Linux/apps/graphics/viewers/svga/zgv-5.2.tar.gz
5.2 contains a security fix - the TIFF support would previously pass
unmodified filenames to /bin/sh. Only as the user (not as root!) but
still clearly something to be concerned about, especially if you use
zgv as an `external viewer' in something like pine, where it can
apparently be made to use unfriendly filenames.
I should probably say that I don't *think* it's a problem you could
run into when using zgv from lynx, given the way that generates a
temporary filename for the image (something like
"/tmp/L4326-1TMP.tiff"). And the web isn't exactly hip-deep in TIFFs.
But it couldn't hurt to upgrade to 5.2 just in case.
There's also an image-size-in-thumbnail bugfix - and at long last, zgv
now supports gamma adjustment.
Here's the changes relative to the previous version (from NEWS):
** New features
Added gamma support (finally!). The basic idea is to ignore the rather
unworkable image/screen gamma distinction, and just use a relative
gamma with fast shortcuts for common cases. So pressing `1' gives a
gamma adjustment of 1.0 (i.e. no adjustment), `2' gives 2.2 (for e.g.
viewing linear-gamma files on an average PC monitor), `3' gives 1/2.2
(~0.45, for e.g. viewing 2.2-gamma files on a linear-gamma display),
and `4' reverts to any `-G' setting (or 1.0 if none was set). You can
also use alt-comma and alt-dot for more precise control of gamma
adjustment.
root is now allowed to run zgv from any tty, for consistency with
svgalib's approach to this. (I was reluctant to make this change, but
if you're root there are rather worse things you could do...) Thanks
to Vlad Harchev for convincing me to do this. :-)
** Bugfixes
TIFF-reading used to blindly run an unmodified filename through the
shell. Fixed that. Thanks to Sergei Ivanov for pointing this out, and
suggesting the fix. Since the TIFF reader still trusts that
`tifftopnm' will do what the name suggests, there's now a TIFFTOPNM
setting in config.mk to specify the exact location of the tifftopnm
executable.
Previously, JPEG thumbnails for images over a certain size were
generated with bogus width/height info. This isn't shown in zgv yet,
but was a pain from things like xzgv. If you found this an annoyance,
you should delete any old thumbnails generated by zgv 5.0 or 5.1
(removing the whole .xvpics dir is easiest), and generate new ones.
makeman.awk used to output a slightly broken NAME line (with "-"
rather than "\-").
** Other changes
Moved 640x480 16-colour mode select to `0' (rather than 4) and
off-by-one interpolation toggle to `!' (rather than 1). This was to
make room for the gamma support keys.
Here's the LSM entry:
- --------------------------------------------------------------------------
Begin4
Title: zgv
Version: 5.2
Entered-date: 2000-10-10
Description: zgv is a full-featured picture viewer for VGA/SVGA
displays which supports most popular formats. (It uses
svgalib.) It provides a file selector with thumbnails
to select file(s) to view, and allows panning and
fit-to-screen methods of viewing, slideshows, scaling,
etc.
Keywords: svgalib graphics viewer thumbnails
GIF JPEG PNG PBM PGM PPM BMP TGA PCX mrf XBM XPM TIFF
Author: russell.marks@ntlworld.com (Russell Marks)
Primary-site: http://www.svgalib.org/rus/zgv/
Alternate-site: metalab.unc.edu /pub/Linux/apps/graphics/viewers/svga
313585 zgv-5.2.tar.gz
230321 zgv-5.2-bin.tar.gz
Copying-policy: GPL
End
- --------------------------------------------------------------------------
- -Rus.
- --
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