More Ways to Use Saturation Mapping (plus Free Macros!)
2 min read
Here, we show four ways to create different saturation maps and then a simple example of how they may be used with blend modes. They can, of course, also be used to create masks to constrain other adjustments.
The formulae used in Procedural Texture (see previous video on how to do this) are:
1. max(R,G,B)-min(R,G,B)
2. (max(R,G,B)-min(R,G,B))/max(R,G,B)
3. (max(R,G,B)-min(R,G,B))/(1-min(R,G,B))
4. max((max(R,G,B)-min(R,G,B))/max(R,G,B),(max(R,G,B)-min(R,G,B))/(1-min(R,G,B)))
How to use these is described in the previous video: http://changingminds.org/disciplines/photography/affinity_photo/youtube_videos/785_saturation_selection_and_edit.htm
The free macros to do these are in the Mono Maps version 2: http://changingminds.org/disciplines/photography/affinity_photo/resources/daves_mono_maps.htm
For related videos, see here: http://changingminds.org/disciplines/photography/affinity_photo/youtube_videos/786_saturation_mapping_blend_macros.htm#see
There are now online pages for InAffinity here: https://changingminds.org/disciplines/photography/affinity_photo/affinity_photo.htm
Free resources, including macros, palettes, etc. are here:
https://changingminds.org/disciplines/photography/affinity_photo/resources/resources.htm
If you are a beginner, start here:
https://changingminds.org/disciplines/photography/affinity_photo/categories/ap_categories_beginners.htm
There is a full, cross-referenced index for every video here: https://changingminds.org/disciplines/photography/affinity_photo/inaffinity_video_index.htm
To find videos by date of publication, start here: https://changingminds.org/disciplines/photography/affinity_photo/ap_time-sorted.htm
To find videos by subject, start here: https://changingminds.org/disciplines/photography/affinity_photo/categories/ap_categories_alphabetic.htm
The web page for this video is here: http://changingminds.org/disciplines/photography/affinity_photo/youtube_videos/786_saturation_mapping_blend_macros.htm
