Use mask tool gimp

There are literally endless ways to approach this, bounded only by your creativity and imagination. Drag the Hue slider around and see how it changes the colors in your image. Especially note that the color shifts will be restricted to the darker tones thanks to the DD mask being used! To illustrate, here are four images where the Hue has been changed in each one. Notice how the color shifts are constrained to darker tones due to the DD mask being active:.

Now just repeat the above steps, but this time for the light tones. So duplicate the base layer again, and add a layer mask, but this time try using the LL channel as a mask. The real power here comes from experimentation. I encourage you to try using a different mask to restrict the changes to different areas try the LLL for instance. You can also adjust the opacity of the layers now to modify how strongly the color tones will effect those areas as well.

The mid-tone masks were very interesting to me. It certainly does do that! To try out the mid-tones mask, we only need to duplicate the base layer, and apply a layer mask to it. We are only targeting the mid-tones. As you can see, there is an increase in contrast across the image, as well a nice little boost to saturation. When considering your images, you can now look at them as a function of luminosity - with a neat and powerful way to isolate and target specific tones for modification.

The original tutorial this was adapted from may be found here possibly with updated information. Bear in mind that this list is being provided for legacy reasons only. They were originally made for very old hence outdated versions of GIMP and most of them do no use Libre licenses allowing editing. Recommended licenses are: Free Art 1. Feel free to browse to understand the structure: for each tutorial, you have a directory with inside the file index.

Many other files can accompany the tutorial inside the directory, such as images, screenshots and various assets. Once you found a tutorial, which you want to edit, click the index. Click it obviously you need to have created a login first and be connected.

Once this is done, fix what needs to be using the Markdown syntax, as for existing text. Fill in relevant information explaining what you did. Now all you have to do is wait for one of the core members to review and validate your changes. A list of legacy tutorials can be found here: All Legacy Tutorials List Bear in mind that this list is being provided for legacy reasons only.

Now that there is a soft edge on the mask, click the dashed QuickMask button to convert the mask back into a selection. See how the selection follows the mask? This is a powerful feature of QuickMask. You can use it to modify any existing selection, and you can even use it to create new selections. The result, a soft white fade into the background, is shown in the final step. The original tutorial can be found here.

Quickmask Tutorial.