In this correspondence, we consider wavelet transform and scale space
filtering as special cases of general scale shift mapping (SSM). Then,
the SSM is used as a tool for characterizing the geometrical complexi
ty of uniform fractals, This tool can reveal the construction rule of
fractals and estimate fractal dimension, Finally, we use the results o
btained from scale shift mapping to estimate iterated function system
(IFS) codes of a class of fractal images, Some examples have been illu
strated to demonstrate its good performance.