Figure 3From: Classification by diagnosing all absorption features (CDAF) for the most abundant minerals in airborne hyperspectral imagesSample output reflectance curve for Alunite and a pixel of the same class. (a) Lower: actual reflectance curves of Alunite (dashed curve) and pixel (solid curve). Upper: CR of Alunite (dashed curve) and pixel (solid curve). (b) Output of stage 6 for Alunite. (c) Output of stage 5 for pixel containing Alunite as its principle component.Back to article page