Runboard.com
Слава Україні!
Black an White Photography Learning Forum

runboard.com       Sign up (learn about it) | Sign in (lost password?)

Page:  1  2 

 
IanBarber Profile
Live feed
Blog
Friends
Miscellaneous info

Administrator

Registered: 01-2011
Location: Doncaster South Yorkshire
Posts: 728
Separating Colour Tones Before The Black and White Conversion


Sometimes we are faced with tones in the colour image which have a similar value. It is the similarity of these tones which could lead to issues after the black and white conversion has taken place.

We run the risk of these tones blending into one another and becoming the same shade of grey.

http://www.digitalblackandwhite.co.uk/black-and-white-conversion/separating-colour-tones.html/

---
Photoshop Panels - Actions - eBooks and more..
http://www.digitalblackandwhite.co.uk

Personal Website
http://www.ianbarberphotography.co.uk
16/Apr/15, 7:57 pm Link to this post Send Email to IanBarber   Send PM to IanBarber
 
Elines Profile
Live feed
Blog
Friends
Miscellaneous info

Registered user

Registered: 08-2014
Location: Leicestershire, UK
Posts: 1244
Re: Separating Colour Tones Before The Black and White Conversion


Thanks for this Ian.

Although my software - PSE 11 - doesn't come with a B&W adjustment layer I was able to find an action that provides it (along with others).

I've had a go at this method and was wondering...Is it as simple as pushing the sliders to extremes (as a starting point at least) to get maximum separation or is that too simplistic an approach and you need to rely totally on judgement.

---
Chris

One day I might grow up, but I hope not
Say YES unless good reason to contrary
21/Apr/15, 4:51 pm Link to this post Send Email to Elines   Send PM to Elines Blog
 
Digital Finger Profile
Live feed
Blog
Friends
Miscellaneous info

Registered user

Registered: 08-2014
Location: Up Naarfolk
Posts: 1817
Re: Separating Colour Tones Before The Black and White Conversion


thanks In , this is similar to what I tend to use in LR with the B+W sliders , when I see I dont get teh tonal separation from desaturating

Why do we set the blending mode to Luminosity rather tha normal?


I mean I see what it does but how does it do it's magic...?
thanks

Last edited by Digital Finger, 4/Aug/15, 9:20 pm


---
I am a part of what I am, not apart from what I dream,
That's a part of what I seem, but not apart from what I am

~ Simon
21/Apr/15, 6:30 pm Link to this post Send Email to Digital Finger   Send PM to Digital Finger Blog
 
Digital Finger Profile
Live feed
Blog
Friends
Miscellaneous info

Registered user

Registered: 08-2014
Location: Up Naarfolk
Posts: 1817
Re: Separating Colour Tones Before The Black and White Conversion


what difference is there ( if any) between doing this and simply moving the sliders with blending mode set to normal?

I can't work it out

---
I am a part of what I am, not apart from what I dream,
That's a part of what I seem, but not apart from what I am

~ Simon
8/Aug/15, 4:25 pm Link to this post Send Email to Digital Finger   Send PM to Digital Finger Blog
 
IanBarber Profile
Live feed
Blog
Friends
Miscellaneous info

Administrator

Registered: 01-2011
Location: Doncaster South Yorkshire
Posts: 728
Re: Separating Colour Tones Before The Black and White Conversion


quote:

Digital Finger wrote:

what difference is there ( if any) between doing this and simply moving the sliders with blending mode set to normal?

I can't work it out



By setting the blending mode to Normal, you are changing Luminosity and not saturation or Hue. We only want to change brightness



---
Photoshop Panels - Actions - eBooks and more..
http://www.digitalblackandwhite.co.uk

Personal Website
http://www.ianbarberphotography.co.uk
8/Aug/15, 7:17 pm Link to this post Send Email to IanBarber   Send PM to IanBarber
 
Digital Finger Profile
Live feed
Blog
Friends
Miscellaneous info

Registered user

Registered: 08-2014
Location: Up Naarfolk
Posts: 1817
Re: Separating Colour Tones Before The Black and White Conversion


quote:

IanBarber wrote:

By setting the blending mode to Normal, you are changing Luminosity and not saturation or Hue. We only want to change brightness




sorry still don't get it (no surprise there really) emoticon

"by setting blend mode to normal you are changing luminosity"...er OK ...why is it called luminosity blend mode if thats not also what it does (really don't know)

are you saying that the luminosity blend mode changes only brightness, and normal mode changes luminosity?

absolutely baffled here emoticon

i.e. does not it do the same thing just adjusting the sliders in normal mode? I can't see any difference between doing that and doing it first with blending mode set to luminosity and adding a mono adjustment layer on that-it still need the sliders adjusting?

Im even more baffled because I thought you said you were colour blind so how can you see the luminosity blendd adjustments of the mono adjustment layer if they're in colour?

I suspect I have got something majorly arse about face here!

Last edited by Digital Finger, 8/Aug/15, 10:52 pm


---
I am a part of what I am, not apart from what I dream,
That's a part of what I seem, but not apart from what I am

~ Simon
8/Aug/15, 10:42 pm Link to this post Send Email to Digital Finger   Send PM to Digital Finger Blog
 
IanBarber Profile
Live feed
Blog
Friends
Miscellaneous info

Administrator

Registered: 01-2011
Location: Doncaster South Yorkshire
Posts: 728
Re: Separating Colour Tones Before The Black and White Conversion


When I refer to changing the blending mode to Luminosity to separate tonal values, I am working on the colour image prior to black and white conversion.

I assume you are doing this ?

---
Photoshop Panels - Actions - eBooks and more..
http://www.digitalblackandwhite.co.uk

Personal Website
http://www.ianbarberphotography.co.uk
9/Aug/15, 8:45 am Link to this post Send Email to IanBarber   Send PM to IanBarber
 
Digital Finger Profile
Live feed
Blog
Friends
Miscellaneous info

Registered user

Registered: 08-2014
Location: Up Naarfolk
Posts: 1817
Re: Separating Colour Tones Before The Black and White Conversion


yes

I still don't get it...triedm it lots last night trying to understand what the advantage was supposed to be but I just can't see the sense in it

I know it must be there because you know helluva lot more about Ps than I do - real trouble getting my head round this one

Last edited by Digital Finger, 9/Aug/15, 9:45 am


---
I am a part of what I am, not apart from what I dream,
That's a part of what I seem, but not apart from what I am

~ Simon
9/Aug/15, 9:44 am Link to this post Send Email to Digital Finger   Send PM to Digital Finger Blog
 
IanBarber Profile
Live feed
Blog
Friends
Miscellaneous info

Administrator

Registered: 01-2011
Location: Doncaster South Yorkshire
Posts: 728
Re: Separating Colour Tones Before The Black and White Conversion




---
Photoshop Panels - Actions - eBooks and more..
http://www.digitalblackandwhite.co.uk

Personal Website
http://www.ianbarberphotography.co.uk
9/Aug/15, 11:58 am Link to this post Send Email to IanBarber   Send PM to IanBarber
 
Digital Finger Profile
Live feed
Blog
Friends
Miscellaneous info

Registered user

Registered: 08-2014
Location: Up Naarfolk
Posts: 1817
Re: Separating Colour Tones Before The Black and White Conversion


ok tried that thanks for that

Soooo.why can't you just do the same with the sliders in normal blend mode and mask the same way - and add a B+W again on top?

won't you get the same effect?

---
I am a part of what I am, not apart from what I dream,
That's a part of what I seem, but not apart from what I am

~ Simon
9/Aug/15, 1:43 pm Link to this post Send Email to Digital Finger   Send PM to Digital Finger Blog
 
Page:  1  2 





You are not logged in (login)

© 2014 The Digital Monochrome Learning Forum