jpg images

[Steve Johnson]

This is still a subject for discussion?

TIF = JPG = not for screen captures period

GIF OK but limited to 256 colors

PNG is the way to go.

http://home.tiscali.nl/developerscorner/imaging/image-saving.htm

http://www.sitepoint.com/gif-jpg-png-whats-difference/

http://stackoverflow.com/questions/2336522/png-vs-gif-vs-jpeg-when-best-to-use

http://www.sitepoint.com/gif-png-jpg-which-one-to-use/

etc




On Fri, Apr 26, 2013 at 1:04 AM, Syed Zaeem Hosain (Syed.Hosain at aeris.net) <
Syed.Hosain at aeris.net> wrote:

> Unfortunately, GIF only uses 256 colors in any given image (selected from
> a larger palette though). So, _not_ what I would use for high-quality
> photographs, but it _could_ be used for screen captures as long as there
> aren't too many colors in that screen.
>
> I have tested JPEG output for screen captures and they are _not_
> acceptable [to me] for this use purpose. Solid color (e.g., white)
> backgrounds, text, sharp color transitions, etc., will get speckled dots
> and edge smearing as well. Often, white backgrounds end up with light-gray
> coloring and these show visibly in documents with white paper backgrounds -
> you can see ink-jet printers trying to reproduce this light color in the
> output. Indeed, my new Canon ink-jet at home (which has a grey ink
> cartridge - cool!) would faithfully try to reproduce this, I think.
>
> It is far better to use TIF (large files though) or PNG for screen
> captures. With true white backgrounds, on white paper documents, the result
> is very clean. In most of my screen captures, the PNG format has worked
> well - particularly when I need transparent backgrounds (which GIF does not
> support) which I can edit in Photoshop.
>
> JPEGs should _only_ be used for photographs.
>
> Z
>
> -----Original Message-----
> From: framers-bounces at lists.frameusers.com [mailto:
> framers-bounces at lists.frameusers.com] On Behalf Of Robert Lauriston
> Sent: Thursday, April 25, 2013 8:43 AM
> To: framers at lists.frameusers.com
> Subject: Re: jpg images
>
> JPEG with the highest quality setting is fine for most screen shots,
> though I usually see smaller files from PNG or GIF.
>
> On Thu, Apr 25, 2013 at 8:05 AM, Matt Sullivan <matt at mattrsullivan.com>
> wrote:
> >
> > All versions of structured Frame support JPEG files.
> >
> > JPEG is a lossy bitmap format, so photos represent well, but diagrams
> and screen shots will likely disappoint you.
> _______________________________________________
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-- 
============
Steve Johnson, dr_gonzo at pobox.com
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