[bob88jg]

This is what I Initially thought too but I am less certain now - I assumed Fractal implied self similarity (which this doesn't seem to have) but this is in fact not true - I think to actually say if its fractal or not someone needs to estimate its dimension using box counting or some, way beyond me, analytical method.

[wang_li]

They should have definition at arbitrary scales. These images do not, they are built from a fixed sized matrix. Beyond a certain point you are between the data points.

[bob88jg]

Same can be said for the madelbtot set or any other fractal - there is a physical bound on the precision of the values - you can in theory run a NN with arbitary precision floats...