Posts by bangzhu

    Open the photo in GIMP.

    Go to Colors > Levels to open the Levels dialog.

    Press Pick, which looks like a pipette with a gray stem.

    Press somewhere on the photo using the gray point picker to define what is a mid-gray tone. ...

    When the colors look natural, press OK.

    Well GIMP is just fine for what it is a free photo editing program.

    I use GIMP, and my XP-Pen Star 06 Wireless Tablet works almost perfectly with it .