Need to split image into multiple colors

R
Posted By
RavennaB
Jan 15, 2007
Views
5396
Replies
5
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Closed
I have an image that I need to split into multiple color channels–not just RGB, CMYK, or HSL.

I believe this is possible because I have a sample image to which this has been done—an original full color image, and then 12 different greyscale images that, individually contain the info for all the diff colors in the image. (Obviously done by someone else, unknown to me—I

rec’d it as a sample for what needs to be done to my design.)

Can anyone advise me on this or point me to a tutorial? I’ve looked everywhere.

Thanks so much!
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color image multiple split

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N
nomail
Jan 15, 2007
RavennaB wrote:

I have an image that I need to split into multiple color channels–not just RGB, CMYK, or HSL.

I believe this is possible because I have a sample image to which this has been done—an original full color image, and then 12 different greyscale images that, individually contain the info for all the diff colors in the image. (Obviously done by someone else, unknown to me—I
rec’d it as a sample for what needs to be done to my design.)

Can anyone advise me on this or point me to a tutorial? I’ve looked everywhere.

Thanks so much!

You could select a color range, and then use ‘Save Selection’ to save this as a new channel. You can do this as many times as you want, so you can create as many new channels as you want. Then, as a final step, you can delete the three color channels.

—
Johan W. Elzenga johan<<at>>johanfoto.nl Editor / Photographer http://www.johanfoto.com
J
JJ
Jan 15, 2007
Take Help Separations.

You can save an image of each color of the CMYK and other spaces.
R
RavennaB
Jan 16, 2007
Thank you to Johan and JJ for the excellent feedback. Looks like something even I may be able to do and I’m anxious to try it.

Appreciate the time you took to share your expertise. —Ravenna ======================================================

Johan W. Elzenga wrote:
RavennaB wrote:

I have an image that I need to split into multiple color channels–not just RGB, CMYK, or HSL.

I believe this is possible because I have a sample image to which this has been done—an original full color image, and then 12 different greyscale images that, individually contain the info for all the diff colors in the image. (Obviously done by someone else, unknown to me—I
rec’d it as a sample for what needs to be done to my design.)

Can anyone advise me on this or point me to a tutorial? I’ve looked everywhere.

Thanks so much!

You could select a color range, and then use ‘Save Selection’ to save this as a new channel. You can do this as many times as you want, so you can create as many new channels as you want. Then, as a final step, you can delete the three color channels.

—
Johan W. Elzenga johan<<at>>johanfoto.nl Editor / Photographer http://www.johanfoto.com
AB
Arnor Baldvinsson
Jan 16, 2007
Hi,

This is very easy to do:) You can read about this in the help for "Channels" then navigate to "splitting into separate images".
1. Open your image
2. Select "Image | Duplicate" from the main menu in Photoshop
3. Select "Layer | Flatten Image" from the menu
4. Select "Window | Channel" from the menu
5. Click on the little arrow button at the top of the Channel palette to open the Channels palette menu.
6. Select "Split Channels"

That’s it!:)

In order to do this for RGB, select "Image | Mode | RGB Color" from the main menu after step 3

For CMYK select "Image | Mode | CMYK" after step 3

For LAB select "Image | Mode | Lab color" after step 3

This makes it very easy to split the images.

Alternatively, if you just want a single channel, then you can select the channel in the channel palette, press Ctrl-A to select the image, then press Ctrl-C to copy it to the clipboard and then select "File | New" from the menu, click OK and then click Ctrl-V to paste the channel image into the new image. This way you can easily build up a B&W image of your photo and then set the strengths for each color channel individually.

Hope this helps:)
—
Arnor Baldvinsson
San Antonio, Texas
J
John
Jan 16, 2007
"Arnor Baldvinsson" wrote in message
Hi,

This is very easy to do:) You can read about this in the help for "Channels" then navigate to "splitting into separate images".
1. Open your image
2. Select "Image | Duplicate" from the main menu in Photoshop
3. Select "Layer | Flatten Image" from the menu
4. Select "Window | Channel" from the menu
5. Click on the little arrow button at the top of the Channel palette to open the Channels palette menu.
6. Select "Split Channels"

Yu da Man, Arnor!

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