1, open PS, open it in the file in the menu bar, and select a character material from the computer to import.

2. Press CTRL+J on the keyboard to copy a layer in the layer panel on the right, and close the eyes of the background layer.

3. Select the quick selection tool in the toolbar on the left to matting characters.

4. Find the reverse selection in the menu bar.

5. Find the cut button in the edit section of the menu bar.

6. Open the eyes of the background layer.

7. Find the fill under Edit in the menu bar.

8. Choose white as the fill color.

9. Finally, you can change the background layer to white, and the effect is shown below.