Jane:
I'm a professional photographer who uses Photoshop CS. In the back
section of the user guide, pg. 297, this is how
Adobe describes what *Format Options* for a JPEG file when using save
as. And I quote:
*Format Options* Select Baseline (Standard) to use a format
recognized by most Web browsers, Baseline Optimized for optimized
color and a slightly smaller file size, or Progressive to display a
series of increasingly detailed scans (you specify how many) as the
image downloads. Baseline Optimized and Progressive JPEG images are not
supported by all Web browsers.
RGB vs. CMYK for printing. Check this site and find out why your
test print on CMYK did not turn out.
http://www.impressionsinprint.ca/cmyk-vs-rgb.php
Hope this helps.
Rick Lombardo
Jane Blake Acree wrote:
Opps...sent this via my husband's E-mail. So, I'll send it again,
using mine.
Jane
Begin forwarded message:
*From: *Henry Acree hdacree at insightbb.com
*Date: *August 7, 2006 2:39:51 PM EDT
*To: *macgroup at erdos.math.louisville.edu
*Subject: Re: MacGroup: Photoshop question
*
I think the optimized choice saves more information about the
color in each pixel (which makes the file size larger). This is
good if you're planning on working on the picture some more later,
in that it gives you more to work with.
Progressive is used for Web design. The picture is saved in
layers. So when the Web page opens up, the picture comes up in
layers, progressively getting more clear with each layer. Use this
for a huge picture that takes a long time to load, so the visitor
won't get bored and leave.
Just for the heck of it, I decided to see what the difference is
when a jpg of Hank and me is saved in RGB (color used for Web
design and for showing pictures on the computer screen) versus a
jpg saved in CMYK (color that is supposed to be calibrated for
print). Then, I printed out a picture in each mode.
The RGB printed photo was normal, meaning it looked just like the
picture on my computer screen. The skin tone looked right, etc.
By contrast, the CMYK printed photo looked awful. It had way too
much red in it, and the skin tones looked as though Hank and I had
a terrible sunburn. What made it more puzzling is that the picture
looked the same on my computer screen.
Obviously, I have a lot to learn about printing and color...smile.
Anybody know a good link to share?
On Aug 7, 2006, at 10:36 AM, Anne Cartwright wrote:
Thanks Jerry,
.psd it is.
Anne Cartwright
Jerry Freeman wrote:
of jpeg choices, standard compression is preferable.
optimized means it's vaguely optimizing the file size, not
the print quality. progressive should be avoided altogether.
'if' print quality is a concern then 'save as' a .psd
file, which has no compression. best...jf
On Aug 6, 2006, at 8:19 PM, Anne Cartwright wrote:
What's the best way to save a jpg for printing? I get
three choices:
Baseline (Standard), Baseline Optimized and
Progressive. The only information I get from PE Help
relates to saving for the Web. I will want to use this
off my printer.
Anne Cartwright
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