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Regarding white backgrounds…

Curves and levels have been adequately addressed.

Do you realize that you can also "set" a white and black point in a piece? 

If you have a background with a slight tone, you can click in that background and "set" the background to be white. 

Bring up CURVES and you will see three small droppers.  The right-most dropper is the white point. Click to select it and then click on the background you wish to be white. Note that you can select the channel or channels you wish to set the white point for. This basically adjusts the curves for you. And you can tweak further, if you wish.

The white point can be customized… often used with halftone images. An example might be a landscape with a very, very light sky. When images are printed in a book, a square halftone is preferred (rather than having parts of the image drop out to white). And rather than have a light sky drop out, and to keep the square look… the white point can be set to specific value. I think I used to set the white point at about 3% for grayscale images (but don't hold me to this; it's been a while). I would also set the black point to 95% (I think), to keep dark areas from getting muddy (and the halftone line screen filling in from dot gain). 

If you are processing a bunch of images… you can record an action, and then batch process your files.

Something else to think about.

K


On Mar 11, 2014, at 11:16 AM, Lynette Cook <[log in to unmask]> wrote:

> Okay, understood. I wasn't familiar with Squarespace.
> 
> Lynette
> 
> On Mar 11, 2014, at 7:47 AM, Bruce Bartrug wrote:
> 
>> Squarespace doesn't have a right-click preventative for use on their websites.  It's easy to bypass anyway, but I was surprised it wasn't standard issue nowadays.  So I have to watermark everything.  Not a big deal, I can automate it in Photoshop without too much hassle, and there are plug-ins that allow simple batch processing if that won't work for what I want.
>> 
>> Thanks, b
>> 
>> 
>> On Tue, Mar 11, 2014 at 10:33 AM, Lynette Cook <[log in to unmask]> wrote:
>> Bruce, yes, I was able to download the images. Couldn't think how to check the values of the whites in Photoshop without doing this. I'm not sure what you mean by your comment about how "It would seem unnecessary. . . " unless you thought you'd somehow set the images so they couldn't be pulled off your site. (The "Save image as" feature) I'm still working on an old tower and in an old version of Photoshop, so am not browsing websites on either a cell or tablet.
>> 
>> Lynette
>> 
>> 
>> On Mar 10, 2014, at 11:14 AM, Bruce Bartrug wrote:
>> 
>> Linda:  Oh, that's the problem!  My monitor is calibrated :).  A recently purchased Dell 24 inch LCD.
>> 
>> Lynette:  I have older work, too, which is sometimes quite a problem.  These were recorded on film, which adds another layer of corrections.  I added the small white border around the black because the black borders alone don't always show clearly on line.  Noticed this first with illustrations for books, and I just carried the idea over to anything that needs a black border to begin with.
>> 
>> Lynette:  you downloaded an image?  Oh, dear.  I never thought to check.  It would seem unnecessary in a Squarespace template that adapts to tablets and cell phones.  Argh!  Maybe I can add one in "Save for Web" function and make it easy.  Sigh 2.
>> 
>> Ann:  I should actually read the instruction to my Epsen V500.  Maybe there's a background color substitution there as well :).  Of course, one device's "white" can be another's pale pink or gray.
>> 
>> Thank you all for looking !
>> 
>> b
>> 
>> Need to leave or subscribe to the Sciart-L listserv? Follow the instructions at
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>> 
>> 
>> -- 
>> Bruce Bartrug
>> Nobleboro, Maine, USA
>> [log in to unmask]
>> www.brucebartrug.com
>> 
>> The world is a dangerous place, not because of those who do evil, but because of those who look on and do nothing.  - Albert Einstein
>> ________________________________________________
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