Know How Transfer

False Profile – Luminosity and Tonal Range Control with Low or High gamma

Developed by Giuliana Abbiati


Change the Luminosity of an Image with One Click 


A Photoshop extension to automate the creation and the assignment of false RGB profiles with low or high gamma. The new version allows to automatically assign a pre-selected workspace to untagged documents and to add a Curves Adjustment Layer in Multiply Blend Mode. Works in conjunction with the Dan Margulis’ PPW Tools

  • Change the Luminosity with One Click 80%
  • Automatically assign a pre-selected workspace to untagged documents and to add a Curves Adjustment Layer in Multiply Blend Mode 70%
  • Works in conjunction with the Dan Margulis’ PPW Tools 60%

Compatibility


  • Current versio: 2.0
  • Photoshop CC, CS6, CS5
  • MAC: All version of OSX compatible with the above Photoshop versions, Maverick included
  • WIN: All version of OS compatible with the above Photoshop versions, WIN8 included

False Profile | Luminosity and Tonal Range Control with Low and High Gamma

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FalseProfile_manual_en

 

 


 

False Profile: how it works

The RGB False profile assignment is a flexible and optimized tool to work with in an easy way. RGB False profiles buttons are completely scripted and they work in a conditional way assigning the gamma value you choose. The assignment process is registered in the History palette as a single step that you can undo as usual:

FP-assign_profile

 

By default a layer mask in Multiply mode is added after the false profile assignment. You can disable the automatic multiply layer in the Preferences (see previous section). If the Multiply layer is allowed, Photoshop adds a blank layer mask by default, you can change this in the Photoshop preferences. When a RGB false profile is assigned, the button recognizes your document’s colorspace. If it has an embedded ICC profile It automatically assigns the primary values of that workspace at the gamma value you have chosen. This means that ( i.e.) if your document is an Adobe RGB (1998) and you assign the 1.0 gamma value the document is assigned an Adobe RGB(1998) False profile at 1.0 gamma.
This is true for all the default Photoshop workspaces:

False_Profile_color_spaces

 The same statement applies for all gamma buttons (0.75, 1.0, 1.2, 1.5, 1.8, 2.0, 2.2, 2.5, 3.0). This behavior saves time by avoiding manual creation of false profiles. You can also try to assign different gamma values to see which one works better for your image. You can switch between them as many times as you like.

False_Profile_installed_profile


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