  Wavelet transform of polarized fluorescence spectra of human breast tissues
is found to localize spectral features that can reliably differentiate normal
and malignant tissue types. The intensity differences of parallel and
perpendicularly polarized fluorescence spectra are subjected to investigation,
since the same is relatively free of the diffusive background. A number of
parameters, capturing spectral variations and subtle changes in the diseased
tissues in the visible wavelength regime, are clearly identifiable in the
wavelet domain. These manifest both in the average low pass and high frequency
high pass wavelet coefficients.
