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1 vote

How to create parabolic surface (or reflector) with GIMP?

This is a supplement for my comment, which said that the shading of the concave surface of a round paraboloid could as well be used for an elliptical egg. This ambiquity - convex or concave, the ...
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3 votes
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How to use PhotoShop to cut out unwanted full height portion of an image?

In Photoshop you could record an action that does what you want. First make a selection in the full height of the image and make sure it doesn't touch the left or right side of the image (the action ...
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1 vote

How to use PhotoShop to cut out unwanted full height portion of an image?

If you want a similar result to the example you posted, then there's no tool to automate this in Photoshop or GIMP like in your example. You'd need to do it manually: Cut a portion of an image, paste ...
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2 votes

Is there a tool that can mimic MS Paint Selection + Shift + Arrow?

In Gimp (and possibly PS): Increase the canvas size and split your object: Create a one pixel-wide selection Copy-paste it (Ctrl-C/Ctrl-V): Use the Scale tool to stretch it: (use InterPolation: ...
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1 vote
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Radial (star-like) distortion of a circle in Gimp

You can create a pointy star with Filters > Render > Gfig. Two ways to round it: Use the Stroke option of GFig. This strokes the outline with the current brush, so the roundness of the tip of ...
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0 votes

Radial (star-like) distortion of a circle in Gimp

Use the free selection tool (=lasso) and make a starlike selection: Invert that selection (Select > Invert) and apply Color > Curves (or levels) to turn the outer part black: You may apply ...
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1 vote
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How to stroke path in Gimp with single color

Step 5 is a mistake. Choose "Solid colour" instead of "pattern". If you choose "pattern" it will stroke it with the currently selected pattern in the Patterns dialog.
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0 votes

Gimp: How to export images at a specific dimensional size

After extensive research, I like using the Buffer feature in Gimp to save each version of our design, into various image sizes (as a buffer). IMHO this is perhaps the best "manual" way to go ...
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2 votes
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Using "Clear" instead fills with the background color

This is because your layer lacks an "alpha-channel" which is where the pixels opacity is kept. Without this pixels cannot be transparent. A clue for this missing alpha-channel is that the ...
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1 vote

Using "Clear" instead fills with the background color

Right click the layer in the Layers view and click "Add alpha channel". Without an alpha channel, you can't have transparent pixels and so can't delete them. Helpfully, GIMP's default ...
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