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Selection and Edit by Saturation

Disciplines > Photography > Affinity Photo > The InAffinity Video Index > Selection and Edit by Saturation

Summary | Video | Detail | See also

Summary

While selection is often done by Luminosity and this is built into Affinity Photo, it is less common and not that straightforward to select by Saturation (also known as 'Colourfulness'). Here's a very easy way to do this with a simple formula, with an example of how you can apply this.

Video

Click image to watch on YouTube:

Detail

Publication Date: 19-Mar-22

Duration: 5:04

To show saturation as black and white, with white indicating higher saturation:

Add a live filter for Procedural Texture
Click the + to add a formula line
Enter one of the following:
- Basic saturation map: max(R,G,B)-min(R,G,B)
- Enhanced saturation map: (max(R,G,B)-min(R,G,B))/max(R,G,B)
Ensure the R, G and B at the end of the line are all selected. Then click Apply.
You can then use Layer/Merge Visible to create a monochrome layer with whiteness meaning greater saturation.
There are many ways to use this, such as editing first by painting black to remove areas.
To convert to a mask, use Layer/Rasterise to Mask
Drag the mask to the adjustments you want to apply
Invert the mask if you want to select the less saturated areas

See also

Affinity Photo Tutorials on Selection

Affinity Photo Tutorials on Saturation

Affinity Photo Tutorials on Masking

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Site Menu

| Home | Top | Quick Links | Settings |

Main sections: | Disciplines | Techniques | Principles | Explanations | Theories |

Other sections: | Blog! | Quotes | Guest articles | Analysis | Books | Help |

More pages: | Contact | Caveat | About | Students | Webmasters | Awards | Guestbook | Feedback | Sitemap | Changes |

Settings: | Computer layout | Mobile layout | Small font | Medium font | Large font | Translate |

Please help and share:

Quick links

Disciplines

* Argument
* Brand management
* Change Management
* Coaching
* Communication
* Counseling
* Game Design
* Human Resources
* Job-finding
* Leadership
* Marketing
* Politics
* Propaganda
* Rhetoric
* Negotiation
* Psychoanalysis
* Sales
* Sociology
* Storytelling
* Teaching
* Warfare
* Workplace design

Techniques

* Assertiveness
* Body language
* Change techniques
* Closing techniques
* Conversation
* Confidence tricks
* Conversion
* Creative techniques
* General techniques
* Happiness
* Hypnotism
* Interrogation
* Language
* Listening
* Negotiation tactics
* Objection handling
* Propaganda
* Problem-solving
* Public speaking
* Questioning
* Using repetition
* Resisting persuasion
* Self-development
* Sequential requests
* Storytelling
* Stress Management
* Tipping
* Using humor
* Willpower

Principles

Explanations

* Behaviors
* Beliefs
* Brain stuff
* Conditioning
* Coping Mechanisms
* Critical Theory
* Culture
* Decisions
* Emotions
* Evolution
* Gender
* Games
* Groups
* Habit
* Identity
* Learning
* Meaning
* Memory
* Motivation
* Models
* Needs
* Personality
* Power
* Preferences
* Research
* Relationships
* SIFT Model
* Social Research
* Stress
* Trust
* Values

Theories

* Alphabetic list
* Theory types

And

– About
– Guest Articles
– Blog!
– Books
– Changes
– Contact
– Guestbook
– Quotes
– Students
– Webmasters

| Home | Top | Menu | Quick Links |

© Changing Works 2002-
Massive Content — Maximum Speed