How to Get Rid of a Double Chin in Photoshopby Daniel Ketchum ; Updated September 28, 2017
Photoshop is an incredibly versatile tool with countless uses, but one of the coolest is the one that its name implies, photographic retouching or restoration. One of the most requested retouching jobs involves removing, or at least reducing, a double chin in a photo. Before Photoshop, only a skilled professional would have been able to have done this, but now anyone who owns Photoshop can remove a double chin in only a few minutes.
Open your photograph in Photoshop. You will notice that the double chin is made up of three parts: the top line, which is the regular line of the chin, the surface area, which is mostly highlight, and the lower lines and shadows. The goal in this process is to concentrate on the lower lines, shadows and highlights, since these are what make the double chin visible, while leaving the upper line in place
Go to the Tools panel, and select the Clone Stamp Tool. Go to the Tools settings at the top and change the size of the brush, reducing to a tenth the size of the double chin, or smaller. Change it from normal to lighten. Reduce the opacity to 15%.
While holding down the Alt key, click to select an area you would like to clone from. Now begin painting back and forth over the shadows and dark lines at the bottom area of the double chin. When necessary, "Alt-click" on a new area to clone from.
Change the Clone Stamp Tool from lighten to darken. Again, select an area to clone from, and start to remove the highlighted area above the shadow.
Change the Clone Stamp Tool from darken to normal, and use it to even out the image a bit. An up and down motion is best here.
Now, change the Clone Stamp Tool from normal to color burn, and reduce the flow to 50%. Increase the relative size of the brush, and go over the retouched area very lightly to darken it a bit..