# Make Fractals of Images

←Orbit Trap Fractals | ◊◊◊ |
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- Choose an image file. The image will be cropped to a square.
- Click in the top canvas to pick a new Julia point or to zoom in.
- Change the size and the position of orbit trap (the image).
- Change the degree of the polynomial used to generate the fractal.
- Switch between Mandelbrot and Julia set.
- Generate a large fractal for downloading.

**Background color**

**Orbit trap size**

**Degree of polynomial**

**Click to change position**

*Download large image* will not work in Chrome (or Safari) if the size of the image is too large. In that case, right-click on the image
to download it and give it a png filename, or use Firefox.

## Explanation

The image is used as a so-called **orbit trap**.

For a short introduction to the Mandelbrot set and Julia sets see Mandelbrot and Animate Julia Sets. See Orbit Trap Fractals for a short introduction to orbit traps.

Each point is iterated along its orbit until a maximum number of iterations is reached, or until an iterated point gets inside the orbit trap square - in which case the orbit "gets trapped". The position of a trapped point is used to get a colour from corresponding pixel of the image, this colour is used to colour the starting point of the orbit.

## Animated gifs

Fractal fireworks on Ello.

## References

The default image is a Wikipedia-image of Pierre Fatou (Pierre Fatou on Wikipedia).
Julia sets made from points outside of the Mandelbrot set are not connected; such sets are commonly called **Fatou dust**.

The Mona Lisa image used is from Wikipedia: Mona Lisa.

jQuery Plugin used on this site for picking colours: Spectrum - The No Hassle jQuery Colorpicker