  This paper introduces new tools for genomic signal processing, which can
assist for genomic attribute extracting or describing biologically meaningful
features embedded in a DNA. The codongrams and a2grams are offered as an
alternative to spectrograms and scalograms. Twenty different a^2grams are
defined for a genome, one for each amino acid (valgram is an a^2gram for
valine; alagram is an a^2gram for alanine and so on). They provide information
about the distribution and occurrence of the investigated amino acid. In
particular, the metgram can be used to find out potential start position of
genes within a genome. This approach can help implementing a new diagnosis test
for genetic diseases by providing a type of DNA-medical imaging.
