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by Wendi E. M. Scarth.
 

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Greyscale 
Photo Edges GIMP

 

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Tutorials by Wendi E. M. Scarth.

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Apply A Greyscale Photographic Edge Mask
GIMP (GNU) -
Intermediate Plus

Apply Greyscale Photographic Edge Masks GIMP (GNU)

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This GIMP (GNU) tutorial demonstrates how to apply an attractive Greyscale Photographic Edge. To work along, you are welcome to download the Start Images I am working with HereUnzip the file and open the Start Images onto GIMP’s workspace.

Free Greyscale Edges
This Website Here, has lots of free Greyscale Edges that can be downloaded.

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.

Resize Images
Understand Layers
Understand Blend Modes
Launch GIMP & Organise Its Workspace & Palettes

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).

1/
To open the two Start Images onto GIMP’s workspace: from Gimps’ top menu choose File then Open - Ctrl then O. Now, from the Open Image dialogue box, navigate to the folder where your Start Images reside, then Ctrl-click to highlight both files - and then click Open.





2/ Change The Tower Bridge Mask’s Orientation To Landscape
Now, from the Tower Bridge Mask’s top menu, choose Image and then choose Transform and then click Rotate 90 Degrees Clockwise.



This changes the Mask’s orientation from Portrait to Landscape.



3/
Now, from the Tower Bridge Mask’s Top Menu, choose Edit and then choose Copy.



4/
Then from the Tower Bridge Image’s (The Photograph’s) Top Menu, choose Edit and then choose Paste as and then choose New Layer - as illustrated below.



Note
It’s safe to Close the original Tower Bridge Mask image. (Top menu, then File then Close). 







5/
From the left-side Toolbox, activate the Scale Tool.



And then left-click once over your image. A large Transformation Bounding Box will then isolate the Edge Mask. Now, left-click over the bottom-right Repositioning Handle - and drag it towards the bottom-right, as illustrated below. You are looking to enlarge the Edge Mask so it is the same size as the photograph.

(
Utilise The Scale Tool Tutorial).



After you have enlarged the Edge Mask so it is the same size as the Photograph, complete the transformation by clicking the following Scale tab.



Tip
Now is a good time to save your
Layered Image as a GIMP XCF File.



6/
Now, ensuring the Top Layer (the Mask Layer/Clipboard) remains active. From the top menu, choose Colours and then choose Invert.

         

7/
Then change the Top Layer’s (The Edge Mask’s) Blend Mode from Normal to
Screen.
 


Note
Screen renders black pixels invisible.



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


9/
Congratulations, your work is complete,
and it is ready to save - top menu, then File then Save As.
 
Now you are more familiar with this technique, you can have lots of fun applying Greyscale Edges to your favourite photographs.


Wendi E. M. Scarth. 
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