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by Wendi E. M. Scarth.
 

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Pencil Sketch GIMP

 

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Convert An Image Into A Pencil Sketch
GIMP (GNU) -
Intermediate

Pencil Sketch Photo Conversion GIMP

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This GIMP (GNU) tutorial demonstrates how to convert a photograph into a Pencil Sketch. To work along, you are welcome to download the Start Image I am working with HereUnzip 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, Duplicate the Background Layer by right-clicking over its Layer (in the Layers Palette) - then choose Duplicate Layer from the subsequent drop-down list. 



3/
Now, (working on the Background Copy Layer). From the top menu, choose Filters then choose Edge-Detect and then choose Edge. And from the subsequent Edge Detection dialogue box, enter the following settings, and then click OK.

Tip
For personal results, experiment with the Edge Detection settings.
 






4/
Then (still working on the Background Copy Layer). From the top menu, choose Colours and then choose Desaturate. And from the subsequent Desaturate dialogue box, enter the following settings, and then click OK.
 






5/
Understand Layers - Understand Blend Modes
Now, change the Background Copy Layers’ Blend Mode from Normal to Grain Extract.

Tip
For personal results, experiment with different Blend Modes and Layer Opacities.

 




6/
Then from the top menu, choose Filters then choose Enhance and then choose Unsharp Mask. And from the subsequent Unsharp Mask dialogue box, enter the following settings, and then click OK.





7/
To finish, from the top menu, choose Image and then choose Flatten Layers.



Desaturate Tip
To create a Monochromatic Pencil Sketch, apply the Desaturate Filter once again, just as you did back in
Chapter 4.



8/
Congratulations, your Pencil Sketch Conversion is complete,
and it is ready to save - top menu, then File then Save As. GIMP 2.8 - File then Export.

Pencil Sketch Photo Conversion GIMP


Now you are familiar with this technique, you can have lots of fun converting your favourite images into pencil Sketches.

Wendi E. M. Scarth. 
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