How to use PS to change the solid color background of photos

1. Use photoshop to open an ID photo.

2. Right-click the image thumbnail, then left-click to copy the layer, and a window will pop up. Click OK with the left mouse button.

3. Then select Image--Adjustment--Hue/Saturation in the menu bar or press the shortcut key Ctrl+U.

4. Then select cyan in the pop-up window.

5. Then click the straw with the plus sign to suck all the blue areas of the photo.

6. Then drag the triangle-shaped handle under the hue, adjust it to the appropriate color, and click OK.

7. After adjustment, you will find that your hair is a little red. This situation can be solved by adding a layer mask. First check to see if the layer you just copied is selected. There is a small box in the lower right corner. Click to add a layer mask. ?

8. First check whether the selection box is on the mask. If not, just click the white box with the left mouse button. Then select the brush tool and adjust the color so that the foreground color is black and the background color is white. Just apply it on the red areas.

9. If you accidentally apply it to other places, adjust the color so that the foreground color is white and the background color is black. Apply it again and it will return to its original state. At this point, the picture is complete. Click File--Save As in the menu bar. Then select the format as jpg, of course you can also choose other formats.