STEP 3
To use clone stamp tool, we must define the source first. Technically “source” is the area which stamp tool uses to process your image further. To define stamp tool press and hold down Alt/Opt. Let’s understand it further by taking the image below as reference. To remove the stray hair which is encircled with yellow color we must define a source that is adjacent to that stray hair or the area which is encircled with red color.