Idea: Multiple Subtractions from Source Image

Hello all,
Trying to understand filter forge and using map/curve script components.
Recently I had an idea to subtract one source image from multiple other sources.

Is it possible to make ;

Main Input : Source Image
Input : Subtract Image 1
Input : Subtract Image 2...5

with map script component.

Don't you think it would be useful?

Thank you,
Best Regards.

Hello,
Thank you for your answer;

I have created 5 inputs and written this code (without a coding knowledge:))
Of course it's not working at the moment,
Looking for your help.

Code

function prepare() end; function get_sample(x, y)     local originalimage = get_sample_map(x, y, SOURCE)    local image1 = get_sample_map(x, y, IMAGE1) local image2 = get_sample_map(x, y, IMAGE2) local image3 = get_sample_map(x, y, IMAGE3) local image4 = get_sample_map(x, y, IMAGE4) local originalimage - local image1 local originalimage - local image2 local originalimage - local image3 local originalimage - local image4 OUTPUT =  get_sample_map(x, y, originalimage)           r,g,b,a = get_sample_map(x, y, OUTPUT)    local r = x    local g = y    local b = (x + y) / 2    local a = 1    return r, g, b, a end;

What is the supposed final output of this filter?

Say, you were using five of the built-in images. Once you've subtracted number two from number one, you have a darker image with features from both. What do you do with the third, fourth and fifth image?

I'm pretty sure this is faster using default FF components than the map script. Likely will depend on a bajillion factors, but this should be doable with default FF stuff. As far as I understand it, it'd be pretty flexible too.

It'd be cool to do stuff with the map script regardless.

Here's my take on subtractive merging. When you subtract three images together, the result is no longer in the required 0-1 range for viewing. So I added some RGB math and a gamma component to bring the image back into range. In this example I am not doing any luminance masking.

Hello,
I have attached file, it's not like what I want to achieve.
I want to make 10 level luminosity masking. Then attaching them to pattern components (for testing I have used checker component here..) Then multiblending them again. Like adaptive size tiling filter. So my main goal asking that question was because after luminosity masking and checker pattern some patterns overlap eachother.
Only way working is using double-size repeats; for example :
-100 and -80 levels : 64 repeat w/h
-80 and -60 levels : 32 repeat ...

But here I have faced with a problem that maximum repeat value is 100.
So even I started with 2...it goes 2-4-8-16-32-64-128(!) So impossible. (This technique worked for 5 level separation)

Please check my filter and help.
By the way may be there would be smarter way to separate levels if so please let me know.
Best Regards.

10 Level Separation.ffxml

Thank you Rick,
I applied your method and attached file. It's getting closer, I tried to do with 5 level separation because of the reason I've mentioned in my previous post. But with 10 levels it might give better results and also I would like to scatter image(s) as particles using that technique. Any ideas? Especially for 10 level separation and repeating issue (or size increments).

Thanks again.

5_Level_Luminosity_Based_Sized_Mosaic.ffxml

Thank you Betis,
I'm going to check it right now, please check my latest attachment. If there would be a way to increase separation levels it would look more natural. And also as you may notice I again it's going somewhere else (but this one also looking good as well:) ) But in my first question I was wondering how to avoid overlapping tiles or mosaics. That was because I had asked subtraction methods. I guess for example on top layer - it would be darker areas and repeat amount would be 100 but when it's lighter repeat value might decrease. Till that part it's ok but I'm trying find a way to avoid overlaps.

5_Level_Luminosity_Based_Sized_Tiler.ffxml

This latest filter (5 Level) produces halftoning! When you use the dot shape, it looks exactly like halftoning. So you have halftoning with a selectable shape for the dot.

And here's the modified filter. Feel free to use it or discard it.

5_Level_luminosity-1bomber.ffxml