Lab color space assignment for decomposed fully polarization Pi-SAR data

Color encoding or assignment of multi-polarization or fully polarimetric synthetic aperture radar (PolSAR) image is vital for visual display and interpretation of the polarimetric information. In this paper, based on the Lab color space that is uniformly perceptual, we propose a color assignment framework aiming at a better visual perception and information interpretation for Pi-SAR-L Quad-Pol data. It is shown that the new color assignment scheme not only preserves the color tone of the polarization signatures, but also enhances the target information embedded in the total returned power. Using the property the Euclidean distance of color, the five channels derived from four components decomposition method can be mapping to Lab color space intuitively.