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Archiver > Freepages-Help > 2003-06 > 1054864363


From: "PRSmith" <>
Subject: Re: [FreeHelp] Re: pixels and inches
Date: Thu, 5 Jun 2003 20:52:49 -0500
References: <5.1.0.14.0.20030605084134.024e2100@pop3.norton.antivirus>


14" monitors, which are rare these days, typically display 800 pixels by 600
pixels and that is the standard that people use when they prepare images for
publication (unless you do two - one for 800x600 and the other for
1600x1200).

If you scan a 5 x 7 photo at 100dpi, you'll end up with an image that is 500
pixels by 700 pixels. It will fit across the screen but won't fit
vertically. If you take a photo with your digital camera at high
resolution, it will measure 1600 pixels by 1200 pixels. Imagine how that
will look on a 14" monitor!


----- Original Message -----
From: "Sarah Hughes (by way of Pat Asher <>)"
<>
To: <>
Sent: Thursday, June 05, 2003 7:42 AM
Subject: [FreeHelp] Re: pixels and inches


> Hi Adrian and fellow listers -
>
> Having just upgraded from a 15" monitor to a 19", and played with the
> settings a bit, I think I'm approaching an intuitive sense of how
resolution
> works; it's just that I don't know how the terminology works.
>
> Does it really matter then, whether I resample images to 96 dpi or 72 dpi
> before I save them as graphics files for my webpage? I seem to have read
> somewhere (hows that for citing my sources?!) that it makes a difference.
> But, thinking it through now, I don't see why it would. If I have a
graphic
> 230 pixels wide, they'll grow into very big pixels if I reset my 19"
monitor
> to 800 x 600, but there will still be exactly 230 of them, regardless of
how
> big or small the picture looked to me at 1:1 magnification when I edited
it.
> Is it only during the editing process that the ppi (or dpi or whatever)
> would matter, because matching a common monitor resolution would enable me
> to get a better idea how well the image would display for others? Or am I
> still confused?
>
> John B. suspects that most people are viewing at lower resolutions than I
> am. I, too, would be interested to see stats on that. I think most new
> computers are sold with 17" monitors now. Does anybody still have to
scroll
> sideways to see the fixed-width tables on my site at
>
> http://freepages.family.rootsweb.com/~bakerpeters/index.htm
>
> or do most of you see them as I do now, looking sort of stupid, slouching
> against the left side of the browser window like a boy at a junior-high
> dance?
>
> Holly, I think your JPEG images of the handwritten pages turned out better
> than mine, and the download time wasn't bad, either. Out here in the back
> of beyond, where antiquated phone lines set a 28.8 speed limit, that
> matters! However, I wasn't able to access them through the Martin Family
> Stories link. The page you put at that address is another copy of your
> table of contents.
>
> - Sally
>
>
> ----- Original Message -----
> From: Adrian Furniss <>
> To: Sarah Hughes <>;
> <>
> Sent: Tuesday, June 03, 2003 6:26 PM
> Subject: Re: [FreeHelp] uploading census images
>
>
> > Sally,
> > Glad to be of help. You've clearly grasped the basic principles, plus a
> bit.
> >
> > With regard to resolution, there's only one thing you need to know
> regarding
> > images on screen:
> >
> > MONITORS DISPLAY ONE PIXEL PER PIXEL.
> >
> > On-screen inches, will vary from monitor to monitor depending on screen
> size
> > (e.g. 15" vs. 17" ) and resolution setting (e.g. 800x600 vs. 1024x768).
> >
> > "Pixels per inch" is only a issue when printing to hard-copy (and
> preparing
> > to do so), though some image processing software (notably Photoshop)
make
> > things a bit confusing by presenting image-resize and image-resolution
> > adjustments in the same dialog box.
> >
> > I've had a look at your scanned letter and think you've decided on a
very
> > good compromise between quality and file-size. It's a tough choice
> sometimes
> > between GIF and JPEG and the various settings in the two. The
experimental
> > approach as you describe is really the only option, though some
software
> > (notably Photoshop again) does make things easier by providing a live
> > preview of the resultant image as the settings are manipulated. (Hence
no
> > need to save repeatedly). I think Paintshop Pro (expired versions of
which
> > appear from time to time on computer cover discs) does the same. No
doubt
> > someone can confirm, please.
> >
> > Adrian
> >
> >
>
>
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