Cross-software text description/definition of a presets and styles?

Question

Is there a human-readable, textual format that describes changes (style/presets) that you can apply on the image? Then this format can be read in multiple photo editing softwares and easily shared by ppl.

Example

This is a trivial example, but you will get the picture ;)

Name: MyCoolContrastOnBlue
Contrast: +15            <- increase of the contrast
Hist.blue: (0.7, 0.7)    <- added a point in histogram
Brightness: -2
Saturation: -32.1
Noise: -2

and so on. Then we can share sets of presets/styles, and make an open community of it.

Of course, some algorithms depend on software (like noise reduction, blur), but we can add modifiers like:

Noise: -2
Noise<CaptureOne.9>: -2.1

So if the software is CaptureOne, we actually use -2.1 noise reduction etc.

Is there something like this in this world?

Answer 1

No. There is currently no such standard. The closest thing is Lightroom sidecar XMP files as a defacto standard. These aren't exactly human-readable (because they're XML rather than the simple key-value format you propose), but at least they're text. And they're not standardized, but some other programs (like Darktable) can at least attempt to interpret them.

For example, Darktable says that crop, rotation, flip, and tags can be understood completely; while exposure, some aspects of the tone curve, local contrast, and a few other things can be at least attempted, but aren't accurate.