Gimp: repair differences in brightness
This photo editing tip shows you how you can correct differences in brightness with the "Gimp" image editing program.
Touch up differences in brightness in Gimp
The free image processing software "Gimp" has various functions and tools to compensate for differences in brightness on your images. For a satisfactory end result, you should do several processing steps. We explain what options you have and how you have to do it:
- Start "Gimp" and open your photo to be edited. Tip: Duplicate your source image before you start editing so you can go back there if necessary.
- First go to the "Values" option under "Colors" in the menu bar and carefully move the tone controls below under "Source values" (see screenshot). Confirm your settings.
- With the help of a further tonal value correction, you can now specifically edit individual image areas. To do this, duplicate your original image again and move this layer to the top of your layer catalog.
- Make another tonal correction at this level. Concentrate specifically on the part of the picture whose brightness you particularly want to improve.
- Then add a layer mask to this edited layer with a right click and the option "Add layer mask". Set the option "Black (full transparency)" in the layer dialog. Your confirmation will hide your last tonal value correction.
- With the brush tool you can now move several times over the respective image area. In this way, your desired tonal value correction is gradually faded in again.
- Use a soft brush with a small brush tip and a low opacity of about "25" for this step. Make sure that you have set the foreground color to "White" to restore the correction settings. This allows you to precisely improve the brightness and quality of your picture.
