re·touch 
/riˈtʌtʃ/ verb
re·touch·es; re·touched; re·touch·ing /riˈtʌtʃ/ verb [+ obj] : to make small changes to (something, such as a photograph) in order to improve the way it looks
▪ The photo had been retouched to remove the wrinkles around his eyes. ▪ a retouched photograph
▪ The photo had been retouched to remove the wrinkles around his eyes. ▪ a retouched photograph
— retouching noun [noncount]
▪ They did a lot of retouching to her picture.
▪ They did a lot of retouching to her picture.
