This GIMP (GNU) tutorial demonstrates how to replace an images colours with a single colour-tone of your choice, using the Colourify Filter. To work along, you are welcome to download the Start Image I am working with Here. Unzip the file and open the image onto GIMP’s workspace.
You can quickly Undo a step at any time by pressing Ctrl then Z. Alternatively, click a previous Undo History snapshot - Windows then Dockable Dialogues then click Undo History. In addition, to Zoom in (or Zoom out) of your image; from the top menu, choose View then select a Zoom Tool from the subsequent drop-down list.
Launch GIMP & Organise Its Workspace & Palettes
Open your choice of Start Image onto GIMP’s workspace - File then Open - Ctrl then O.
Ensure the Layers and the Undo History Palettes are visible, and then drag them into position over your workspace - (Windows then Dockable Dialogues - then click Layers and Undo History).
Now, from the top menu, choose Colours and then choose Colourify.
From the subsequent Colourify dialogue box, you can either select a colour from the six colour Presets already there. Alternatively, you can select any Solid Colour of your choice. To select a Colour Preset, click one of the following colour swatches, and then click OK.
Alternatively, to select any Solid Colour of your choice, click the following Custom Colour tab.
And from the subsequent Colourify Custom Colour dialogue box, left-click over a colour of your choice, and then click OK.
If you know your colour choice’s HTML code, first clear the value already there, and type new values into the HTML Notation box.
After you have selected a Solid Colour of your choice, click OK to apply it to your image.
Congratulations, your Colour-tone Conversion is complete, and it is ready to save - top menu, then File then Save As. GIMP 2.8 - File then Export.
Wendi E. M. Scarth. Top of Page.