Image Gradients

How can I capture or construct a gradient from an image?

There's no way to do this automatically in Ultra Fractal. You could however import the image using the Image coloring algorithm so it's displayed in a fractal window:
http://www.ultrafractal.com/help/coloring/usingimages.html

Then, you can in another layer or another fractal window edit the gradient, picking colors from the imported image manually using the eyedropper tool:
http://www.ultrafractal.com/help/gradients/editing.html

Hope this helps!

If you don't mind a gradient with 400 colours you could try a palette editor utility called ApoMap which converts images to Apophysis style gradients. You can download this free Open Source utility here: apophysis.org

To obtain a gradient you can use in UF:

• Open an image in ApoMap using the "Smooth Palette" command
• Tweak the result as you see fit or leave as is
• Use the Copy command to copy the gradient to the clipboard
• Open a gradient editor window in UF --> Paste in your new gradient then save in your Gradients folder

These instructions are for Windows users. I don't know if any of this applies to Mac users.

Apo gradients are a bit messy as every one of the 400 nodes is a colour but they can be useful on occasion so I'm just mentioning it as an alternative method you might like to look at.