Table 4.

Different graphs’ running time on real-word hyperspectral images (HSIs) (unit:s). NN, nearest neighbor; SVM, support vector machine.

Method	RPCA2,1	RPCA	PCA	IFRF	Origion	RPCA2,1	RPCA	PCA	IFRF	Origin
Classifier	NN					SVM
Indian Pines image	16.73	21.62	5.16	5.31	5.69	27.94	34.53	14.39	16.90	17.34
University of Pavia	83.89	100.31	54.28	56.92	47.11	115.84	135.86	88.52	90.26	116.61
Salinas image	15.55	18.14	4.24	4.27	3.22	28.56	32.61	14.39	14.32	15.29