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by Wendi E. M. Scarth.
 

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Invert Colours GIMP

 

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Add Drama By Inverting An Image’s Colours
GIMP (GNU) -
Beginners

Invert Colours GIMP

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This GIMP (GNU) tutorial demonstrates how to quickly add drama by inverting an image’s colours. 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, from the top menu, choose Colours and then choose Invert.





Value Invert Note
This filter inverts Value (luminosity) of the active Layer or a Selection. Hue and Saturation will not be affected, although the colour will sometimes be slightly different because of round-off error.

Value Invert Example


3/
Then from the top menu, choose Filters then choose Enhance and then choose Unsharp Mask. Now, from the subsequent Unsharp Mask dialogue box, enter the following settings, or experiment, and then click OK.
 


Invert Colours GIMP


4/
Congratulations, your Invert Colours Conversion is complete,
and it is ready to save - top menu, then File then Save As. GIMP 2.8 - File then Export.
 

 



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