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Elines Profile
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Registered: 08-2014
Location: Leicestershire, UK
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Luminosity masks and selections


EDIT - sorry I meant to put this in 'Photoshop editing and technical' - can it be moved please?

(I think this is pretty advanced stuff and that may be one reason why I am struggling with it.)

Selections based on luminosity are an important part of the advanced processing technique in 'From Basics ...'.

Joel Tjintjelaar does sell a video tutorial:

[sign in to see URL]

but I'd like to get as far as I can (which may well be enough for me anyway) without splashing out too much.

I have searched on the internet and tried various things in a pretty unstructured way.

Even though I have PS Elements 11 rather than 'full' photoshop I have been able to download free actions which allow very sophisticated selections based on luminosity:

[sign in to see URL]

I have tried reading instructions and generally messing about with luminosity selection to see if my understanding emerged - but so far it hasn't.

I have got as far as knowing that the marching ants are only a guide to what is selected but even so when I have dabbled there are lots more changes in the image than I was expecting.

I also get confused by whether or not I have created a mask before or after making the luminosity selection

In this case I think I need a video tutorial plus a copy of the image being processed in order to apply the instructions and follow what happens.

I have searched on You Tube on 'Luminosity Masks' and there are loads of videos on the topic on there.

Q1 Can anyone recommend any particular ones so that I don't have to wade through the whole lot?

Alternatively

Q2 does anyone have the JT tutorial and can recommend it - especially if you get the actual image being processed - then maybe I just have to bite the bullet and fork out some cashemoticonemoticon

Last edited by Elines, 12/Feb/15, 4:07 pm


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Chris

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Say YES unless good reason to contrary
12/Feb/15, 4:05 pm Link to this post Send Email to Elines   Send PM to Elines Blog
 
IanBarber Profile
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Re: Luminosity masks and selections


If PS Elements can read standard actions then I can create you a set of actions that will extract all the zones as luminosity masks for you

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Photoshop Panels - Actions - eBooks and more..
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12/Feb/15, 4:44 pm Link to this post Send Email to IanBarber   Send PM to IanBarber
 
Elines Profile
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Re: Luminosity masks and selections


Thanks for your kind offer Ian.

Yes, PSE 11 can read and use standard actions. It was the first version that could - but it can't create actions.

The actions I have downloaded from the Tony Kuyper site:

[sign in to see URL]

allow me to make a wide range of luminosity selections - the problem I am having is to use them in a sensible, structured way.

Incidentally - it may be that the Tony Kuyper actions work in Photoshop proper too, and so be of interest to other folk on this forum. (In saying that I am assuming that actions that work in PSE 11 will also work in Photoshop.)

---
Chris

One day I might grow up, but I hope not
Say YES unless good reason to contrary
12/Feb/15, 5:09 pm Link to this post Send Email to Elines   Send PM to Elines Blog
 
IanBarber Profile
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Posts: 728
Re: Luminosity masks and selections


Luminosity masks are time consuming to make but are pretty straight forward to use.

You decide what mask you want to load ( darks) for example.

Once the mask has been created you use either a curve or levels to modify tones in that mask only.



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

Personal Website
http://www.ianbarberphotography.co.uk
12/Feb/15, 5:18 pm Link to this post Send Email to IanBarber   Send PM to IanBarber
 




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