The main body of this Photoshop tutorial is done using the reverse backwash effect. If the material picture is chosen properly, the effect will be outstanding. There are also ready-made actions available for download online. If you are interested, you can try a few more sets of pictures to test the effect.
Original picture
final effect
1. Open the original image material, click the channel panel to select the blue channel, enter the "Image" menu, select "Apply Image", select "Invert", use "Multiply" as the blending mode, and set the opacity to 50%. confirm.
2. Select the green channel in the channel control panel, enter the "Image" menu, select "Apply Image", select "Invert", use "Multiply" as the blending mode, set the opacity to 20%, and confirm.
3. Select the red channel in the channel control panel, enter the "Image" menu, select "Apply Image", select "Color Burn" for the blending mode, and confirm.
4. Select the blue channel in the channel control panel, enter the "Image" - "Adjustment" menu, select "Levels", enter: 25, 0.75, 150 in the "Input Levels" fields, and confirm.
