Spectral unmixing is an important technique for quantitatively analyzing hyperspectral remote sensing images. Recently. constrained nonnegative matrix factorization (NMF) has been demonstrated to be a powerful tool for spectral unmixing. However. https://www.bekindtopets.com/limited-value-Zury-Sis-Beyond-5-Hand-Tied-Part-Lace-Wig-BYD-LACE-H-CHILL-top-savings/