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Digital BW, The Print

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Re: optimizing images for the web

Re: optimizing images for the web

2006-02-01 by Siobhan McClory

Hi,
I am a member of the piezography group and have posted on here very
occasionally but do have to thank you all for the amount I've learnt  over
the years from reading your posts.  (the ones that are not over my head).
As I  now finally have high speed internet I am having a web-site created
And need to prepare images for it. I am hoping that some-one could give me
some guidelines on the best way to do this.  (MAC G4/ O.S 10.3.9/Photoshop
CS).  I know PS has the "Save for the web option"  but within that there are
various options which I am a little unsure of.   Thanks a lot.  Siobhan

Re: optimizing images for the web

2006-02-01 by Clayton Jones

Hello Siobhan,

>As I  now finally have high speed internet I am having a web-site 
>created And need to prepare images for it. I am hoping that some-one 
>could give me some guidelines on the best way to do this.  

I use PS-CS and can share my method.  I would never claim it to be the
best, but it works fine for me. I use a workflow that has good
WYSIWYG, so when I'm done working up an image for printing, the
resulting screen image is also what I want to put on my web site.  So
the following steps are meant to keep the image visually as is.  

-------------------------------------------------------------------
1) flatten all layers, discard all alpha channels, saved selections,
attached memos, etc.  Get rid of all excess baggage.

2) change to 8 bit (all work is done at 16 bit).

3) insert copyright notice.

4) convert image profile to gray gamma 2.2 (I do most work in Dot Gain
18 or 20%, but browsers display with GG2.2 so my images would look too
dark if I didn't do this - so you may or may not need to do this step).

5) resize to desired image size in a single step using Bicubic Sharper.

6) save as a .jpg with desired filename (my work files are .tif).
-----------------------------------------------------------

That's it.  I hope this is helpful.


Regards,
Clayton


Info on black and white digital printing at    
http://www.cjcom.net/digiprnarts.htm

Re: optimizing images for the web

2006-02-01 by James Parker

Briefly... Save as JPEG with as much compression as you can before the image
degrades in your opinion. The "Save for Web" option lets you preview up to
four different variations including the original so you can see how the
image changes when you try different parameters. Generally JPEG Medium will
get you in the ballpark.

Sizewise, the smaller the images on the page, the quicker the load time. For
a single image, you can see what the load time might be under different
conditions in the SFW window, under each image on the left side. Shorter
times are better.

JP


On 2/1/06 9:50 AM, "DigitalBlackandWhiteThePrint@yahoogroups.com"
<DigitalBlackandWhiteThePrint@yahoogroups.com> wrote:
Show quoted textHide quoted text
> Subject: Re: optimizing images for the web
> 
> Hi,
> I am a member of the piezography group and have posted on here very
> occasionally but do have to thank you all for the amount I've learnt  over
> the years from reading your posts.  (the ones that are not over my head).
> As I  now finally have high speed internet I am having a web-site created
> And need to prepare images for it. I am hoping that some-one could give me
> some guidelines on the best way to do this.  (MAC G4/ O.S 10.3.9/Photoshop
> CS).  I know PS has the "Save for the web option"  but within that there are
> various options which I am a little unsure of.   Thanks a lot.  Siobhan

Re: [Digital BW] Re: optimizing images for the web

2006-02-01 by Ellie Kennard

Hi Siobhan,

Don't forget to convert the images to sRGB before converting to jpg 
or they will look very dull.

Regards,

Ellie

On 1 Feb 2006,  Siobhan wrote (snipped):
 
> >As I  now finally have high speed internet I am having a web-site
> >created And need to prepare images for it. I am hoping that some-one
> >could give me some guidelines on the best way to do this.
-- 
Innovative Imaging Studio, http://www.iiStudio.com
9545 Hwy 221, Canning, Nova Scotia, B0P 1H0;
Phone: 902-582-3795
SKYPE ID: innovativeimagingstudio

RE: [Digital BW] Re: optimizing images for the web

2006-02-01 by Paul Roark

Siobhan,

> I am a member of the piezography ...
> I am having a web-site created ...
> And need to prepare images for it...

As Clayton pointed out, Gray Gamma 2.2 ("GG 2.2") is the gray space you want
to use.  The Piezo software I used long ago, like the curves I then made for
those files and the Epson driver, used a B&W ramp that was lighter than what
GG 2.2 uses.  (It's more like Dot Gain 20%.)  So, you'll probably have to
use a curve to adjust the files, making them a bit lighter.  Once your file
& workspace are GG 2.2, you can do this visually in PS, assuming your
monitor has a standard calibration.  (I have to do it all the time with my
old files -- which is one reason I'm switching to GG 2.2 as my standard.)

Paul
www.PaulRoark.com

Re: optimizing images for the web - sharpening

2006-02-03 by lou4photo

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Clayton Jones" 
<cj@...> wrote:
5) resize to desired image size in a single step using Bicubic Sharper.

Clayton:
Are you working on a previously sharpened image and/or do you do any 
sharpening after the resize before saving? Your web images look quite 
nice.
Lou Meluso

Re: optimizing images for the web - sharpening

2006-02-03 by Clayton Jones

Hello Lou,

>>5) resize to desired image size in a single step using Bicubic 
>>Sharper.

>Are you working on a previously sharpened image 

Well, the answer is maybe, to be precise.  I'm working on a completed
image, it may or may not have sharpening applied to it. 


>and/or do you do any sharpening after the resize before saving? 

Not any more since I began using Bicubic Sharper.  Everything looks
real good with this method.  I used to reduce in steps with Bicubic in
PS7 doing small amounts of USM at each step, but I'm finding this
Bicubic Sharper in a single step is just as good or better - and a LOT
faster.


>Your web images look quite nice.

Thank you, it's gotten better over time and I've gone back and redone
some of them.  

Regards,
Clayton


Info on black and white digital printing at    
http://www.cjcom.net/digiprnarts.htm

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