Freepages-Help-L ArchivesArchiver > Freepages-Help > 2003-06 > 1054864363
From: "PRSmith" <>
Subject: Re: [FreeHelp] Re: pixels and inches
Date: Thu, 5 Jun 2003 20:52:49 -0500
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
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 <>)"
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
> 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
> 230 pixels wide, they'll grow into very big pixels if I reset my 19"
> to 800 x 600, but there will still be exactly 230 of them, regardless of
> big or small the picture looked to me at 1:1 magnification when I edited
> 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
> sideways to see the fixed-width tables on my site at
> 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
> 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
> > With regard to resolution, there's only one thing you need to know
> > images on screen:
> > MONITORS DISPLAY ONE PIXEL PER PIXEL.
> > On-screen inches, will vary from monitor to monitor depending on screen
> > (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
> > to do so), though some image processing software (notably Photoshop)
> > 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
> > good compromise between quality and file-size. It's a tough choice
> > between GIF and JPEG and the various settings in the two. The
> > approach as you describe is really the only option, though some
> > (notably Photoshop again) does make things easier by providing a live
> > preview of the resultant image as the settings are manipulated. (Hence
> > need to save repeatedly). I think Paintshop Pro (expired versions of
> > appear from time to time on computer cover discs) does the same. No
> > someone can confirm, please.
> > Adrian
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|Re: [FreeHelp] Re: pixels and inches by "PRSmith" <>|