Let’s take a look at the original pictures and renderings first:
Original picture
renderings
1. Open the image and copy the layer using Ctrl+j twice to get a copy of Layer 1 and Layer 1 respectively.
2. Create a new layer 2, place it between layer 1 and the background layer, and fill it with color. As a background color for checking the results of the next operation, it is filled with grass green.
3. Select the guessed "Filter - Extract Command"
4. Use the highlighter tool to apply as shown, paying attention to the parameters outside the red circle.
Figure 2
5. Extract the highlight part of the hair, enlarge the image and use an eraser to erase the noise at the edge of the hair.
6. Click on the copy layer of layer 1 and execute: Filter - Extract command on this layer
Figure 3
7. Use the highlight tool to draw the green edge, and use the fill tool to fill in the blue.
Figure 4
8. The main body of the character is cut out. Add a mask on this layer to modify the distribution of the edges of the hair, and the effect will appear.
Figure 5
Effect:
Figure 6