A non-parametric classification procedure which categorizes a given pixel as wheat or non-wheat according to the trend it follows throughout the growing season is discussed. The cycle wheat makes during the growing season can be described by observing that wheat goes from "brown" (bare soil) to "green" (greening stage) to "brown" (Harvested or golden stage). Since wheat is the only significant U.S. crop which has this cycle during the growing season for winter wheat, we felt that if we could develop a procedure which would enable one to visually follow this type of trend, then perhaps one would be able to distinguish winter wheat from most non-wheat classes.

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