The description and visualization of printer's spectral color gamut plays important roles in Spectral Color Management System (SCMS). They are the basis of spectral color gamut mapping technique. In view of the disadvantages that the spectral color gamut described by Spectral Profile Connection Space (SPCS) can't be used in visualization because of its high dimension and it is difficult to get printer's spectral color gamut, a novel algorithm is proposed. Firstly, the characteristic and transform with SPCS ...