Feature request: dehaze and snapshots

[gadolf66]

If it applies, I would like to suggest the creation of a new dehaze module and the ability to take snapshots.
Regarding snapshot, I thought it could be located above the histogram, as a new tab. In the new tab, you would have a button to take a new snapshot, and below it, a list of snapshots.
When you click on one snapshot, it overlays the current display, limited by a scrollable cursor,

[gadolf66]

Regarding de-hazing, I could get interesting results by using the slope, offset and power sliders, from the color correction module. (btw, this module shows as color adjustments in the color menu),
Before:

After (a bit exagerated):

[aferrero2707]

@gadolf66 sorry for the late answer, I am finally able to catch-up all the pending issues on the project, after a period of intense work...

Snapshots are an excellent idea, and actually rather easy to implement (as usual, the UI part will be the most difficult one...). I have created a dedicated issue (#210) to follow this idea.

Regarding the dehaze, which implementation would you recommend to take as model? I know RT implements a version of the retinex algorithm, would that be a sort of state-of-the-art? I have personally no experience on this...