Someone posted this cool little tool[1][2] on Reddit a while back (no affiliation). It colour grades an image you upload based on a scene you select from their gallery.

Not really what you asked for but it helped me understand how massive of an impact colour grading can have on how you perceive a scene.

1 https://match.color.io/

2 https://v.redd.it/113ksxlphgz61/DASH_720.mp4

Very cool tool but how is this colour grading? It looks like cheap instagram filters.

I think this might be because a large part of what Instagram filters do /is/ just color grading.

I found this:

https://developer.nvidia.com/gpugems/gpugems3/part-iv-image-...

This is about working with linear-to-light values on GPUs however the issues in VFX are largely the same.

This article covers things really well: http://blog.johnnovak.net/2016/09/21/what-every-coder-should...