I recently had someone ask me how to turn an overcast sky blue. If you have trees
that you can see through and they are high above the horizon, this can be very
tricky. But if they are low, like the
example below, there are several methods you can use to get the affect, but one
simple way for even novice Photoshop users is to add a blue gradient fade.
First, use any selection tool to select just the sky. Don't worry about being perfect around the
horizon because the blue will be fading to transparent at that point. Once you have the selection, choose the
gradient tool and put it in a color to transparent and linear mode (see red arrows). Then select a light
blue for your top color.
Then use the gradient tool drawing from the top of the picture to
about 3/4 way down the selected sky. If
you do not like the result, try drawing longer or shorter lines. Just be aware that this tool is
additive. If you do not like the first
result, undo it. If you keep using the
tool on top of an existing blue gradient fade, it keeps adding to the blue.
Try playing with different shades of blue and opacity.
Enjoy.
Original Picture with Overcast Sky |
Use the this mode for the gradient tool |
Blue sky added. |