I have been playing with regionalize painting first using some of the region painter presets and more productively creating selective auto regions and then painting inside those regions.
I am having difficulty finding the proper Image Op that will produce the region I now want to experiment with.
My method is to simplify an image with simplify, blurs, Color simplify, threshholds adjustments, smart contrasts, stuff like that to generate a region to a tonality that I want to paint within.
Now I want to separate the simplified sections based on Hue to get to a region. I am not being very successful at finding the Image Op that can start me towards Hue separations that can then be processed with thresholds, or what ever, to a region.
Any suggestions where to look?
So am I allowed to answer my own question?
I have been playing with the "Simplify" Image Op and getting somewhere. Set colour space to RGB, IP to Source Image Canvas compensation to "Threshold canvas and effect". This one seems to get me close to where I want to go, especially when I choose Lum for the effect.
The big hint is I select a colour from the Image with the picker and play with the saturation slider of the chosen colour in the fixed colour window. I then option click the colour into colour mem 1 and clear the canvas to colour mem 1, then action. Varying the saturation slider of the colour I select from the image has a great deal to do with where the crossover on the threshold happens. Then by adding repetitions to the IP OP, or reapplying the effect in BW colour space, I can get a nice hue related selection that I can then set as a region under the "Replace Region Selection" in the canvas compensation.
Threshold IP OP was doing similar things for me but because that IP OP has more controls it is harder to understand all the variables needed to get me to the effect.
Pays to be persistent with experimenting.
"Thank you for your helpfull answers. Your answers so close what I need - Especially closepack2.
I did some editing on it and get colser dot.
Is it possible touches dots each other and minimum whites between them without overlapping?"
"Like Craig said, there are a lot of different ways you could build something like this. Here's one simple paint synthesizer approach.
So i'm using smooth random path start generator, a path length of 1, vector sphere painting,…"
"I am sure there are quite a few factory presets available with SA that could start you on the way to making images like that.
I am attaching a Paint Synthesizer preset that might be a good starting point for experimenting: cd_dottoss01.zip