[projectaon] Re: Chasm of Doom Mines and Vision
- From: Ingo Kloecker <projectaon@xxxxxxxxxxxxxxxx>
- To: projectaon@xxxxxxxxxxxxx
- Date: Sun, 21 Feb 2010 20:36:45 +0100
On Sunday 21 February 2010, David Davis wrote:
> Well this is because JPEGs used lossy compression and throw half the
> info away ;)
> Admittedly, Simon's workflow here isn't exactly getting all that info
> back...
In fact, Simon's workflow doesn't get any of the lost information back.
All his workflow does is reduce the impact of the lost information. (I'm
a mathematician. I talk such nonsense all the time. ;-) )
Why/When did we decide to replace the JPEGs by PNGs? Is the much larger
size suddenly no problem anymore? A lot of people still have very slow
Internet connections. We, the people with high-speed Internet
connections, keep forgetting that not everybody has the luxury of fast
downloads.
Regards,
Ingo
> ----- Original Message -----
> From: "Nicholas Jankowski" <jankowskin@xxxxxxxx>
> To: <projectaon@xxxxxxxxxxxxx>
> Sent: Sunday, February 21, 2010 6:39 PM
> Subject: [projectaon] Re: Chasm of Doom Mines and Vision
>
> > also noticed that (at least for the first one) the PNG filesize is
> > about 4-5x the JPG. Not sure if that is a concern.
> >
> > On Sun, Feb 21, 2010 at 9:50 AM, David Davis
> > <feline1@xxxxxxxxxxxxx>
> >
> > wrote:
> >> Looks to me like there was a small but noticeable improvement due
> >> to the JPEG artefact remover
> >> and smoothing, although as you say, if you want a big difference,
> >> a re-scan
> >> would be required.
> >> A tiny tip (although maybe it's just my browser not supporting
> >> this): the JPEG's were interlaced,
> >> so they do that "fading in bit by bit" thing, rather than
> >> scrolling in from
> >> the top as they download
> >> (so impatient readers get to see them ever so slightly quicker) -
> >> the same interlacing feature is available in PNG, it's worthwhile
> >> enabling
> >> it Paint Shop Pro's
> >> Save As... PNG dialogs.
> >>
> >> DAVID
> >>
> >> ----- Original Message ----- From: "Simon Osborne"
> >> <outspaced@xxxxxxxxxxxx>
> >> To: <projectaon@xxxxxxxxxxxxx>
> >> Sent: Sunday, February 21, 2010 11:24 AM
> >> Subject: [projectaon] Re: Chasm of Doom Mines and Vision
> >>
> >>> On 20/02/2010 19:49, Simon Osborne wrote:
> >>>> Jon, should I go ahead and commit PNG conversions of the
> >>>> original JPGs of maps 9-18 to SVN, or are you planning on
> >>>> rescanning them before we re-release those books?
> >>>
> >>> I've gone ahead and converted all JPG maps -> PNG (expect a
> >>> fairly large SVN update today) as well as fixing certain labels
> >>> (and recording the relevant errata). Because we may re-scan
> >>> these maps (Books 9-18) in the future, we may need to re-alter
> >>> these labels (Books 10, 12, 14, and 16) so
> >>> I've created a small wiki page as a reminder of what will need
> >>> fixing: <http://www.projectaon.org/en/Errata/MapCorrections>
> >>>
> >>> Slightly more technical info: The conversion from JPG -> PNG was
> >>> straightforward enough. Ran the images through the JPEG Artefact
> >>> Remover facility in Corel Paint Shop Pro 10, then used Edge
> >>> Preserving Smooth on a
> >>> very low level to just cover over any blotches left behind.
> >>>
> >>> IMO the quality of the converted images, while not as
> >>> crystal-clear as a re-scan, are acceptable for use in any
> >>> re-releases, so that shouldn't prevent us from re-releasing any
> >>> of these books. For comparison:
> >>>
> >>> <http://www.projectaon.org/test/en/xhtml/lw/09tcof/map.jpg>
> >>> <http://www.projectaon.org/test/en/xhtml/lw/09tcof/map.png>
> >>>
> >>> <http://www.projectaon.org/test/en/xhtml/lw/12tmod/map.jpg>
> >>> <http://www.projectaon.org/test/en/xhtml/lw/12tmod/map.png>
> >>>
> >>> <http://www.projectaon.org/test/en/xhtml/lw/14tcok/map.jpg>
> >>> <http://www.projectaon.org/test/en/xhtml/lw/14tcok/map.png>
> >>>
> >>> <http://www.projectaon.org/test/en/xhtml/lw/16tlov/map.jpg>
> >>> <http://www.projectaon.org/test/en/xhtml/lw/16tlov/map.png>
> >>>
> >>> --
> >>> Simon Osborne
> >>> Project Aon
> >>>
> >>> ~~~~~~
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> >>
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