The invention relates to a method of modifying the appearance attributes
of digital images comprising: defining in a first channel of a color
corrector a first set of appearance attribute corrections to be applied
to the images; determining a first set of appearance attribute correction
parameters corresponding to the first set of appearance attribute
corrections; in the first channel of the color corrector defining at
least one further set of appearance attribute corrections to be applied
to the images; determining a set of appearance attribute correction
parameters corresponding to the or each of the further sets of appearance
attribute corrections; and combining each of the sets of appearance
attribute correction parameters into a single set of appearance attribute
correction parameters. The invention also relates to a method where the
channel is implemented in software and to apparatus and software for
carrying out the methods.