Hyperspectralunmixingisoneofthemostimportanttechniquesinanalyzinghyperspectralimages,whichdecomposesamixedpixelintoacollectionofconstituentmaterialsweightedbytheirproportions.Recently,manysparsenonnegativematrixfactorization(NMF)algorithmshaveachievedadvancedperformanceforhyperspectralunmixi