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Pop Art: Change 
The Colours GIMP

 

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Pop Art Photographic Conversion: Change Colour
Pop Art Conversion Part Three GIMP (Change Colour)
GIMP (GNU) - Intermediate Plus - Weekend MasterClass
(
Pop Art Part 1 Preparation)
(
Pop Art Part 2 Colourise)
(
Pop Art Part 4 Quarter Grid Here)

Click An Image To Access The Tutorial

Click An Image To Go The The Corresponding TutorialPop Art Part 1 PreparationPop Art Part 2 ColourisePop Art Part 3 Change The ColoursPop Art Part 2 Quarter Grid
Pop Art Conversion Part 3: Change The Colours

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This GIMP (GNU) tutorial demonstrates how to change a pop art image’s colours. In Part One of my Four Pop Art Collection Here, you learned how to prepare your photograph. In Part Two, Here; you learned how to Colourise your prepared image. (In Part 4 Here, I demonstrate how to create Quarter Grid). 

To work along, you are welcome to download my Colourised Pop Art Image
HereUnzip the file and open the image onto GIMP’s workspace.

Your colourised image and Layers Palette should resemble the following. The Top Layer should be active.

         

Note
Each photograph is unique, and therefore has different needs. With this in mind, when working with your image, it’s important to experiment with the settings outlined in this tutorial.

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.

(Pressing the Shift Key and then simultaneously tapping the + (Plus) Key enlarges - (zooms into), your image. Tapping the - (minus) Key zooms out of an image).

Launch GIMP & Organise Its Workspace & Palettes

1/
Open your Layered Colourised Pop Art 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/ Isolate The Background Colours And Lips With A Selection Marquee
Now, from the left-side Toolbox, activate the Fuzzy Select Tool.



And from the Tool Options Box, set the following Add to the current selection, Sample Merged and Threshold of 22 attributes.



(Working on the Top Layer). Left-click once over the Background area - as illustrated below. This isolates the Top-Left Corner with a Selection Marquee.
 


Then right-click over the Selected Left-Side Corner. And from the subsequent drop-down list, click Select and then click By Colour.



Then (again) left-click once over the Top-left Corner. All red pixels should now be isolated by a Selection Marquee - as illustrated below.



Now you have selected all red pixels (the Background and Lips), with a Selection Marquee, you are ready for the next step.

          

3/ Grow The Selection Marquee
From the top menu, choose Select and then choose Grow. And from the subsequent Grow Selection dialogue box, enter a Grow selection by radius of 1 Pixel and then click OK





4/ Change The Background And Lips Colours
Then from the top menu, choose Colours and then choose Hue-Saturation. And from the subsequent Hue-Saturation dialogue box, change the Selected Lips and Background colour by dragging the Hue slider left or to the right. When you like the look of your new colour, click OK



          

Tip: Change The Lips’ Colour
If you like, you can change the Selected Lips’ Colour.  You can do this by setting the Foreground Swatch to your choice of Lips Colour, then painting over them using the Paintbrush Tool.



5/ Remove The Selection Marquee
From the top menu, choose Select and then choose None.



Now you have changed the Background and Lips’ Colour, you are ready for the next step.

Tip
It’s a good time to save your Layered Image as a
GIMP XCF File.

6/ Isolate The Skin Tones With A Selection Marquee
Now, (still working on the Top Layer). It’s time to isolate the Skin Tones with a Selection Marquee; just as you with the Background and Lips. Therefore, activate the Fuzzy Select Tool, and retaining it’s previous settings, left-click once over a Skin Tone area -
just as you did with the Background Area here. Then right-click over the Selected Skin Area, and from the subsequent drop-down list, choose Select and then choose By Colour - just as you did with the Background Area here. Now, left-click once over a Skin Tone area; just as you did with the Background Area here. This will isolate all Skin Tones areas with a Selection Marquee - as illustrated below.

         

7/ Grow The Skin Tone’s Selection Marquee
Now, Grow the Skin Tone’s Selection Marquee by 1 Pixel, just as you did with the Background and Lips,
Here.

 


8/ Change The Skin Tone Colour Using The Hue-Saturation Command
Then change the Selected Skin Tones Colour to a colour of your choice using the Hue-Saturaton Command, just as you did with the
Background/Lips Colour Here.

 


9/ Remove The Selection Marquee
Now, remove the Selection Marquee - Select then None.

         

10/ Change The Hair And Then The Dress Colours
Now, (still working on the Top Layer). Change the Dress Colour (and the Hair if it is Blonde), exactly as you did with the Background and Skin Tone Colours, demonstrated earlier in this tutorial. Then remove the Selection Marquee. After you have changed the Dress and Hair Colours, and have removed the Selection Marquee, you are ready for the next step.

          

Tip
It’s a good time to save your Layered Image as a
GIMP XCF File.

11/ Flatten The Layers
Now, from the top menu, choose Image and then choose Flatten Image.



Congratulations, you have successfully changed your pop art image’s colours. Now,
Link Here To Complete The Final Pop Art Tutorial, Where You Will Learn How To Create A Quarter Pop Art Grid.

If you don’t want to create a Quarter Grid, then
Link Here to learn how to Optimise and Save your Pop Art Conversion.

Wendi E. M. Scarth. 
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