Texture analysis of IKONOS panchromatic data for Douglas-fir forest age class separability in British Columbia

This Letter presents the results of textural separability tests obtained by first- and second-order texture methods on different aged Douglas-fir stan ds in IKONOS panchromatic imagery acquired 3 June 2000 over the Sooke River watershed in British Columbia. The effects of different measures and windo w sizes on the textural separability are discussed. Small windows sizes wer e not as effective in separating stands as larger windows sizes. Second-ord er (spatial co-occurrence homogeneity) texture values were the most effecti ve in distinguishing between age classes. A first-order (variance) texture measure, though still useful, provided less separability.