|
This GIMP (GNU) tutorial demonstrates how to define an image’s contours by applying both a Bump Map and a Sharpening Filter to it. 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.
Notes
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
1/
Open your choice of Start Image onto GIMP’s workspace - File then Open - Ctrl then O.
Note
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).
 |
2/
Now, from the top menu, choose Filters and then choose Map and then choose Bump Map. And from the subsequent Bump Map dialogue box, experiment with different Bump Map settings, and then click OK.
Note
I’ve selected the default settings. However, for personalised definition, it’s important to experiment with the Bump Map settings.
3/
To finish, from the top menu, choose Enhance and then choose Unsharp Mask. And from the subsequent Unsharp Mask dialogue box, enter the following (default) settings - or experiment, and then click OK.
4/
Congratulations, your Defined Edges Conversion is complete, and it is ready to save - top menu, then File then Save As.
Wendi E. M. Scarth. Top of Page.
|
