1, open the ps software, drag the picture into the ps, as shown in the figure, and press the shortcut key c to cut off the unnecessary part of the edge. Here are the ways to change color:

2. Click the magic wand tool on the right, click in the white area, and select the selection area, as shown in the figure. Don't set the tolerance too large to avoid selecting the selection.

3. After selection, on the top menu bar: Image-Adjustment-Levels (shortcut key is ctrl+L), as shown in the figure, Levels Panel,

4. There is a small square in the lower right corner of the color scale panel. You drag it to the left. It's up to you to decide how much to delay.

5. After dragging, you can find that the color of the picture has changed and turned into black. As the picture shows, the shirt has turned black, thus completing the effect of color change! It's done.