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How can I remove all white pixels?

 
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simple_language

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Since: Jan 25, 2007
Posts: 7



(Msg. 1) Posted: Sun Jan 13, 2008 10:06 am
Post subject: How can I remove all white pixels?
Archived from groups: rec>photo>digital, others (more info?)

I am trying to remove all white pixels from a monochrome (black and
black) picture imported into Adobe Photoshop 5.0 LE. The magic wand
does not work because it removes contiguous pixels only. Is there any
way to remove all white pixels?

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Scott W

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Since: Apr 16, 2007
Posts: 394



(Msg. 2) Posted: Sun Jan 13, 2008 10:13 am
Post subject: Re: How can I remove all white pixels? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

On Jan 13, 8:06 am, "simple_langu...@yahoo.com"
<simple_langu....TakeThisOut@yahoo.com> wrote:
> I am trying to remove all white pixels from a monochrome (black and
> black) picture imported into Adobe Photoshop 5.0 LE. The magic wand
> does not work because it removes contiguous pixels only. Is there any
> way to remove all white pixels?

There is a check box with the magic wand that turn on and off the
contiguous part of the operation.

Scott

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simple_language

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Since: Jan 25, 2007
Posts: 7



(Msg. 3) Posted: Sun Jan 13, 2008 2:18 pm
Post subject: Re: How can I remove all white pixels? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

"Fat Sam" <samandja....TakeThisOut@knox.orangehome.co.uk> wrote:

> Now open the "select" menu and choose the "colour range" option.

Scott W <biph....TakeThisOut@hotmail.com> wrote:

> There is a check box with the magic wand that turn on and off the
> contiguous part of the operation.
>
> Scott

These options do not exist in my version of the Photoshop. (5.0 LE.) I
guess I should upgrade it.
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Foto Trix

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Since: Jan 13, 2008
Posts: 1



(Msg. 4) Posted: Sun Jan 13, 2008 2:50 pm
Post subject: Re: How can I remove all white pixels? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

I use photoshop 6, I use the Remove Background button (hidden in the
eraser dropdown). I first resize the brush so big it covers
everything, then I just click on the color I want removed. You will
have to do some tweaking to get it to remove all the colors
continously (1st: noncontinuous, then other set to continuous). Not
the exact answer, but this is what I basically do to remove colors...

http://www.fototrix.com (mashup your photos online, add special
effects, frames and fun templates)
http://www.txt2pic.com
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ronviers

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Since: Jun 12, 2006
Posts: 174



(Msg. 5) Posted: Sun Jan 13, 2008 3:51 pm
Post subject: Re: How can I remove all white pixels? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

On Jan 13, 12:06 pm, "simple_langu...@yahoo.com"
<simple_langu... DeleteThis @yahoo.com> wrote:
> I am trying to remove all white pixels from a monochrome (black and
> black) picture imported into Adobe Photoshop 5.0 LE. The magic wand
> does not work because it removes contiguous pixels only. Is there any
> way to remove all white pixels?

Hi,
One possibility is to:
Create a new layer of white with as much white as you want to remove.
For example, rgb=252,252,252 to get ride of the top three. Place this
layer above the image you want the white removed from and set the
blend mode to difference. The do ctrl+alt+shft+e to make a stamp of
that image. The use that stamp as a mask for the image.

Good luck,
Ron
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Nervous Nick

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Since: Apr 18, 2007
Posts: 32



(Msg. 6) Posted: Sun Jan 13, 2008 5:24 pm
Post subject: Re: How can I remove all white pixels? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

On Jan 13, 12:06 pm, "simple_langu...@yahoo.com"
<simple_langu....TakeThisOut@yahoo.com> wrote:
> I am trying to remove all white pixels from a monochrome (black and
> black) picture imported into Adobe Photoshop 5.0 LE. The magic wand
> does not work because it removes contiguous pixels only. Is there any
> way to remove all white pixels?

Turn off your monitor? ;>)

--
YOP...
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ray

External


Since: Dec 07, 2006
Posts: 820



(Msg. 7) Posted: Sun Jan 13, 2008 7:06 pm
Post subject: Re: How can I remove all white pixels? [Login to view extended thread Info.]
Archived from groups: rec>photo>digital, others (more info?)

On Sun, 13 Jan 2008 10:06:39 -0800, simple_language.DeleteThis@yahoo.com wrote:

> I am trying to remove all white pixels from a monochrome (black and
> black) picture imported into Adobe Photoshop 5.0 LE. The magic wand
> does not work because it removes contiguous pixels only. Is there any
> way to remove all white pixels?

I don't understand - what are you going to replace them with after you
remove them?
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user

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Since: Oct 14, 2007
Posts: 9



(Msg. 8) Posted: Sun Jan 13, 2008 8:07 pm
Post subject: Re: How can I remove all white pixels? [Login to view extended thread Info.]
Archived from groups: rec>photo>digital, others (more info?)

simple_language.RemoveThis@yahoo.com wrote:
> I am trying to remove all white pixels from a monochrome (black and
> black) picture imported into Adobe Photoshop 5.0 LE. The magic wand
> does not work because it removes contiguous pixels only. Is there any
> way to remove all white pixels?

Yes, this is quite simple, bt the key isn't in the use of the magic wand as
you might expect.
First open your image in photoshop.
Now open the "select" menu and choose the "colour range" option.
Now when the colour range window opens, click on a white area in your image,
and you'll see a small scale monochrome thumbnail preview giving you an idea
of the selection.
Click okay, and you'll find that in your image, all the white pixels in your
image have now been selected.
Hope that helps.
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user

External


Since: Oct 14, 2007
Posts: 9



(Msg. 9) Posted: Sun Jan 13, 2008 10:57 pm
Post subject: Re: How can I remove all white pixels? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

simple_language RemoveThis @yahoo.com wrote:
> "Fat Sam" <samandja... RemoveThis @knox.orangehome.co.uk> wrote:
>
>> Now open the "select" menu and choose the "colour range" option.
>
> Scott W <biph... RemoveThis @hotmail.com> wrote:
>
>> There is a check box with the magic wand that turn on and off the
>> contiguous part of the operation.
>>
>> Scott
>
> These options do not exist in my version of the Photoshop. (5.0 LE.) I
> guess I should upgrade it.

Aaah. I'm working from CS2....Sorry.
I'm not sure what tools you have avaliable in version 5 to be honest. I did
have it on my system running alongside CS2, but I got rid of it a few weeks
ago.
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Mike Russell

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Since: Dec 22, 2005
Posts: 287



(Msg. 10) Posted: Sun Jan 13, 2008 11:57 pm
Post subject: Re: How can I remove all white pixels? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

<simple_language.RemoveThis@yahoo.com> wrote in message
news:c7e46ac0-1ae5-4c5a-8dce-a8b707c70054@e25g2000prg.googlegroups.com...
>I am trying to remove all white pixels from a monochrome (black and
> black) picture imported into Adobe Photoshop 5.0 LE. The magic wand
> does not work because it removes contiguous pixels only. Is there any
> way to remove all white pixels?

Here's one way to select all the white pixels in Photoshop 5 LE. First copy
the image to the clipboard, then go into QuickMask mode, and paste the image
to the mask.

Use levels to set everything below 255 to zero, and everything above it to
255. Because of the way Levels is implemented, you will need to do two
repetitions of this in order to get absolutely every white pixel. Switch
from QuickMask back to normal mode, and pure white pixels will be selected.
You may use your favorite method is to get rid of them.

More than likely there are easier and better ways to do what you are trying
to do. Full Photoshop has the dust and scratches filter that will do this
quickly and easily. Polaroid supplies an excellent plugin and stand alone
utility that does this, and it's free:
http://www.polaroid.com/service/software/poladsr/poladsr.html

Both of these filters use what is called an "Impulse Filter", which removes
noise from an image by replacing the noise with averaged values from nearby
pixels. When using these filters, I find myself using the lasso tool to
select dust specks from the shadows, followed by a dose of dust and
scratches. This avoids degradation of detail in the lighter areas of the
image. If this is what you want to do, Polaroid's Dust and Scratches could
save some work.
--
Mike Russell - www.curvemeister.com
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The Bobert

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Since: Feb 02, 2007
Posts: 10



(Msg. 11) Posted: Mon Jan 14, 2008 12:10 am
Post subject: Re: How can I remove all white pixels? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

In article
<c7e46ac0-1ae5-4c5a-8dce-a8b707c70054 DeleteThis @e25g2000prg.googlegroups.com>,
"simple_language@yahoo.com" <simple_language DeleteThis @yahoo.com> wrote:

> I am trying to remove all white pixels from a monochrome (black and
> black) picture imported into Adobe Photoshop 5.0 LE. The magic wand
> does not work because it removes contiguous pixels only. Is there any
> way to remove all white pixels?

You've had some good methods suggested. Like most things PhotoShop, there
are many ways to do most things. Here's how I would do it.

Open Image
Select Magic Wand
Click on a white area.
Under Special Menu choose Similar

All white areas should be selected.

--
Dogs have owners.
Cats have staff

Bob in Central California
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The Bobert

External


Since: Feb 02, 2007
Posts: 10



(Msg. 12) Posted: Mon Jan 14, 2008 2:58 am
Post subject: Re: How can I remove all white pixels? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

In article
<c7e46ac0-1ae5-4c5a-8dce-a8b707c70054.DeleteThis@e25g2000prg.googlegroups.com>,
"simple_language@yahoo.com" <simple_language.DeleteThis@yahoo.com> wrote:

> I am trying to remove all white pixels from a monochrome (black and
> black) picture imported into Adobe Photoshop 5.0 LE. The magic wand
> does not work because it removes contiguous pixels only. Is there any
> way to remove all white pixels?

You've had some good methods suggested. Like most things PhotoShop, there
are many ways to do most things. Here's how I would do it.

Open Image
Select Magic Wand
Click on a white area.
Under Special Menu choose Similar

All white areas should be selected. Now what are you going to do?

--
Dogs have owners.
Cats have staff

Bob in Central California
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Don Stauffer in Minnesota

External


Since: Apr 20, 2007
Posts: 91



(Msg. 13) Posted: Mon Jan 14, 2008 7:19 am
Post subject: Re: How can I remove all white pixels? [Login to view extended thread Info.]
Archived from groups: rec>photo>digital, others (more info?)

On Jan 13, 4:18 pm, "simple_langu...@yahoo.com"
<simple_langu....DeleteThis@yahoo.com> wrote:
> "Fat Sam" <samandja....DeleteThis@knox.orangehome.co.uk> wrote:
> > Now open the "select" menu and choose the "colour range" option.
> Scott W <biph....DeleteThis@hotmail.com> wrote:
> > There is a check box with the magic wand that turn on and off the
> > contiguous part of the operation.
>
> > Scott
>
> These options do not exist in my version of the Photoshop. (5.0 LE.) I
> guess I should upgrade it.

As an alternate method, can you magnify the image till you can see the
pixels clearly and use the clone tool to select an adjacent pixel and
clone it to the white one?
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Sir F. A. Rien

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Since: May 18, 2007
Posts: 8



(Msg. 14) Posted: Mon Jan 14, 2008 8:08 am
Post subject: Re: How can I remove all white pixels? [Login to view extended thread Info.]
Imported from groups: rec>photo>digital, others (more info?)

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ray

External


Since: Dec 07, 2006
Posts: 820



(Msg. 15) Posted: Mon Jan 14, 2008 9:50 am
Post subject: Re: How can I remove all white pixels? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

On Mon, 14 Jan 2008 08:08:35 -0800, Sir F. A. Rien wrote:

> ray <ray.RemoveThis@zianet.com> found these unused words:
>
>>On Sun, 13 Jan 2008 10:06:39 -0800, simple_language.RemoveThis@yahoo.com wrote:
>>
>>> I am trying to remove all white pixels from a monochrome (black and
>>> black) picture imported into Adobe Photoshop 5.0 LE. The magic wand
>>> does not work because it removes contiguous pixels only. Is there any
>>> way to remove all white pixels?
>>
>>I don't understand - what are you going to replace them with after you
>>remove them?
>
> Possibly transparency ...
>
> Answer: "Select => Similar

Possibly - it's certainly not clear to me.
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