Gradient maps in Photoshop
Gradient maps map shadow and highlights to brightness and tones.
Open image in Photoshop
Press CNRL 0 (ZERO) to see whole image.
Add a gradient map this layer will appear above your background image.
It will show as monochrome.
As we want to work in colour we change the blending mode to overlay.
Set opacity at 60 percent.
Left side of map affects shadows of histogram.
Right side affects highlights.
At the bottom are the colour stops.
All along left side of square are just tonal values from black to white 000000 – ffffff
As you move in box to right you change colour tones
All these have a hex value # followed by 6 digits in hexadecimal 0-f
We want #fff1e5 = orange for left colour stop = shadows.
We want #000309 = blue for right colour stop = highlights.
Next add another map but this time make blend mode = soft light
Left = #edffe2 = green, right =#94ffb7 also green
This is to brighten trees with greener colour.
Trouble is this affects other parts of image
But gradient maps already have a box for a mask.
Select 100 percent opacity
Set hardness of brush at 0% to make it soft.
Select a black brush and paint mask in. to set colours back to default in photoshop press D.
Now we need to add 3rd map.
Select blend mode = hardlight to brighten image and warm it.
Left colour stop =#787776 a grey colour, right = #dcd783
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