With a stable component basis during construction, and a linear modeling process, sequential NMF[1] is able to preserve the flux in direct imaging of circumstellar structures in astromony[2], as one of the methods of detecting exoplanets, especially for the direct imaging of circumstellar disks. In comparison with PCA, NMF does not remove the mean of the matrices which leads to unphysical non-negative fluxes, therefore NMF is able to preserve more information than PCA as demonstrated by Ren et al[10].