Figure 6From: Optimized maximum noise fraction for dimensionality reduction of Chinese HJ-1A hyperspectral data Abundance estimation results of extracted endmembers by N-FINDR. Abundance retrieval is processed based on dimensionality reduced HJ-1A hyperspectral data through PCA (a), MAF (b), traditional MNF (c), and OMNF (d). In each row, vegetation, salt area, muddy water, water body, and error are represented from left to right.Back to article page