Gladly!
First of all I would like to recommend this nice video where @Bruce_Williams shows how to use this module with some examples:
Now, I’m just gonna concentrate on what I did in this photo. If you look at it roughly, the sky has three different colour areas:
To bring out the clouds, the rest of the sky needs to be darkened. The darkening of the sky (and the blue water) will also highlight the boat. So, we have to darken what I called the sky and horizon in the photo.
First we take that color picker in color look up table module and select the sky:
As you can see, the patch that comes closest to the color of the selection in the photo is automatically selected (white frame in the patch). Now we darken this patch with lightness slider:
The clouds are already better visible now, but the contrast is not so good yet. So we choose an area in the sky, which is similar to the first one in terms of brightness, but differs from it discreetly in terms of colour. The area around the horizon is suitable for this:
But, as you can see, automatically the same patch is chosen again, which means I have to choose another one and change it manually. With the selection in the picture and with the Shift key pressed, I click on another patch. In this one I click on the middle grey:
This patch has now taken the selection color. Now I darken this patch with the lightness slider:
If I lighten the green also, the colour of the boat and the tops of the waves will be also lighter:
By brightening the brown, the bot and the tips of the waves will be even more contrasty:
This color change has also caused the noise in the sky, which must be corrected afterwards:
). We tend to overdo these things. Especially when directly compared to more saturated and sharper versions, images may look flat and “boring”.
