This tutorial introduces how to adjust monotone colors. When coloring, just copy the black and white image of the relevant channel into the layer, and then change the layer blending mode appropriately to achieve color conversion. The operation is relatively simple.
Original picture
final effect
1. Open the original image material, press Ctrl + J to copy the background layer, execute: Filter > Blur > Gaussian Blur, the value is 4, then hold down the Alt key and add a layer mask, and then use a white brush to Apply skin grinding to the parts of the character's face that have mottled colors and patches of color. The effect is as shown in Figure 1.
<Figure 1>
2. Create a new layer, press Ctrl + Alt + Shift + E to stamp the layer, then click the channel panel, select the green channel, press Ctrl + A to select all, press Ctrl + C to copy, return to the layer panel, and create a new one Layer, press Ctrl + V to paste, the effect is as shown in Figure 2, and then change the layer blending mode to "Lighten", the effect is as shown in Figure 3.
<Figure 2>
<Figure 3>
3. Create a new layer, stamp the layer, and then change the layer blending mode to "Screen". The effect is as shown in Figure 4.
<Figure 4>
4. Create a curve adjustment layer and adjust the blue color. The parameter settings are as shown in Figure 5, and the effect is as shown in Figure 6.
<Figure 5>
<Figure 6>