Just consider the recommendation @anon41087856 gave regarding the difference between global and local tone mapping.
With the global tone mapper (filmic) you treat the whole dynamic range and with local (tone equalizer) you treat certain brightness ranges. This allows you to treat brightness ranges separately.
This photo is underexposed because the highlights on the walls of the houses should not be overexposed due to the very large dynamic range:
If I increase the exposure to see the market place better, the highlights are overexposed:
With filmic I have compressed the dynamic range and accordingly the highlights are there again, but the contrast there has been lost through the compression:
This is also logical because almost 4 EV in highlights have been “squeezed” from the dynamic range of the camera into 1 EV of the dynamic range of the screen:
To get contrast back there, I now have to treat this area locally. So I have to,
- move it into the middle grey (darken it)
- “spread it out” from there to the highlights.
So, after the white balance, I can first darken the sky with the help of the second instance of the colour calibration module and thereby increase the contrast between the sky and the clouds:
I can also use colour balance to increase the contrast even more:
And now I can use Tone Equalizer to treat only the highlights (walls of the houses) separately to increase the contrast there. First darken them (move them into middle grey) with first instance:
And then, with the help of the second instance, without perservation of the details (which means, to use it like a normal tone curve), I can expand this area back into the highlights:
And last, I can use diffuse and sharpen module to increase local contrast a little bit: