RetouchPRO

Go Back   RetouchPRO > Technique > Photo Retouching
Register Blogs FAQ Site Nav Search Today's Posts Mark Forums Read


Photo Retouching "Improving" photos, post-production, correction, etc.

How to save an image without one channel?

Reply
 
Thread Tools
  #1  
Old 07-07-2009, 04:09 AM
Isedo Isedo is offline
Senior Member
 
Join Date: Jan 2009
Posts: 185
How to save an image without one channel?

Hi, I'm playing with Photoshop and I deleted one chanel, for exemple the blue one. Ok, now how to save this image and work on it? How can I copy it and paste it to another document?

The problem is that whan I delete a chanel i see my image with some cool colors but photoshop sees it in black and white, so when i select it and copy to another document, PS pastes it in bw.

It seems that there's no way to work on an image whithout a chanel.

Anyone can help?

Martin
Reply With Quote top
  #2  
Old 07-07-2009, 05:02 AM
Isedo Isedo is offline
Senior Member
 
Join Date: Jan 2009
Posts: 185
Re: How to save an image without one chanel?

The only way seems to be make a print screen of what i see but i find it to dirty way...
Reply With Quote top
  #3  
Old 07-07-2009, 07:09 AM
kooo kooo is offline
Junior Member
 
Join Date: May 2008
Location: Finland
Posts: 13
Re: How to save an image without one chanel?

Why don't you only remove colour information from particular channel instead of deleting whole channel?
So, for examply picture without blue channel, I would do it this way:

Channels -> Select blue channel -> Press delete (or backspace) -> Select RGB channel

.Kumpu

Last edited by kooo; 07-07-2009 at 07:15 AM. Reason: Typo & clarifying what I try to say
Reply With Quote top
  #4  
Old 07-07-2009, 07:14 AM
Godmother's Avatar
Godmother Godmother is offline
Senior Member
 
Join Date: Jun 2006
Posts: 814
Re: How to save an image without one chanel?

Quote:
Originally Posted by Isedo View Post
Hi, I'm playing with Photoshop and I deleted one chanel, for exemple the blue one. Ok, now how to save this image and work on it? How can I copy it and paste it to another document?

The problem is that whan I delete a chanel i see my image with some cool colors but photoshop sees it in black and white, so when i select it and copy to another document, PS pastes it in bw.

It seems that there's no way to work on an image whithout a chanel.

Anyone can help?

Martin
If u want it for web, just make the blue channel completely black.

Then u can keep editing the image in that "Fluo" tone u like.

x
Reply With Quote top
  #5  
Old 07-07-2009, 09:08 AM
Isedo Isedo is offline
Senior Member
 
Join Date: Jan 2009
Posts: 185
Re: How to save an image without one chanel?

Thanks guys but it seems not work for me.

If I color the blue chanel with black i see some yelowish color and not the tone i see when i delete that chanel. Maybe I'm doing somethink wrong?

Thanks again for helping
Martin
Reply With Quote top
  #6  
Old 07-07-2009, 09:10 AM
Isedo Isedo is offline
Senior Member
 
Join Date: Jan 2009
Posts: 185
Re: How to save an image without one chanel?

Quote:
Originally Posted by kooo View Post
Why don't you only remove colour information from particular channel instead of deleting whole channel?
So, for examply picture without blue channel, I would do it this way:

Channels -> Select blue channel -> Press delete (or backspace) -> Select RGB channel

.Kumpu
Thanks but not working for me. When i delete a blue chanel from an RGB image i finish with a file with just Cyan and Magenta chanels.
So I tried also to convert in CMYK and turn on just these 2 but the effects is not the same as deleting the blue from rgb.

:-)


Martin
Reply With Quote top
  #7  
Old 07-07-2009, 09:47 AM
Godmother's Avatar
Godmother Godmother is offline
Senior Member
 
Join Date: Jun 2006
Posts: 814
Re: How to save an image without one chanel?

Quote:
Originally Posted by Isedo View Post
Thanks but not working for me. When i delete a blue chanel from an RGB image i finish with a file with just Cyan and Magenta chanels.
So I tried also to convert in CMYK and turn on just these 2 but the effects is not the same as deleting the blue from rgb.

:-)


Martin
If u turn it Black it's the same, try it out
Reply With Quote top
  #8  
Old 07-07-2009, 09:51 AM
Isedo Isedo is offline
Senior Member
 
Join Date: Jan 2009
Posts: 185
Re: How to save an image without one chanel?

Hi, thanks for helping but here is the difference.

One is without the blue and one with black blue.
What is wrong?

Thanks,
Martin
Attached Images
File Type: jpg noblue.jpg (49.8 KB, 41 views)
File Type: jpg black.jpg (74.9 KB, 37 views)
Reply With Quote top
  #9  
Old 07-07-2009, 10:09 AM
Godmother's Avatar
Godmother Godmother is offline
Senior Member
 
Join Date: Jun 2006
Posts: 814
Re: How to save an image without one chanel?

Quote:
Originally Posted by Isedo View Post
Hi, thanks for helping but here is the difference.

One is without the blue and one with black blue.
What is wrong?

Thanks,
Martin
I know. White is to extreme also...

Try this:
www.nataliataffarel.com/GRAY.jpg

xx
Reply With Quote top
  #10  
Old 07-07-2009, 11:16 AM
0lBaldy's Avatar
0lBaldy 0lBaldy is offline
Senior Member
Patron
 
Join Date: Oct 2007
Posts: 3,580
Re: How to save an image without one chanel?

To get close to the same colors as deleting the red channel
convert to CMYK
Fill the Cyan and Black channels with white
Make adjustments to the non white channels using contrast, curves, levels etc till the colors are OK for you
convert back to RGB

to get close to the same colors as deleting the green channel
convert to CMYK
Fill the magenta and Black channels with white
Make adjustments to the non white channels using contrast, curves, levels etc till the colors are OK for you
convert back to RGB

to get close to the same colors as deleting the blue channel
convert to CMYK
Fill the Yellow and Black channels with white
Make adjustments to the non white channels using contrast, curves, levels etc till the colors are OK for you
convert back to RGB
do whatever
Reply With Quote top
Reply

  RetouchPRO > Technique > Photo Retouching


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Tutorial 05: Converting a Color Image to Black and White grayscale BW DannyRaphael Photo-Art 101 17 05-22-2011 05:55 PM
Channel Desaturation pantoned Photo Retouching 6 07-15-2008 12:50 PM
Found this image somewhere-you try it. gholmes1936 Photo Retouching 2 06-23-2008 01:41 PM
100KB per image or per post? marliz Image Help 4 06-01-2008 07:34 PM
select shape Peg Hidden Power Support 7 08-29-2004 07:10 PM


All times are GMT -6. The time now is 05:43 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
SEO by vBSEO ©2011, Crawlability, Inc.
Copyright © 2016 Doug Nelson. All Rights Reserved