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Wheat spikes recognition process. [A was the original digital photo. SLIC was Simple linear iterative clustering. (B) was the superpixel block. (C) was the artificial pre-segmentation sample. (D) was the label sample. Two classifiers were support vector machine (SVM) and K nearest neighbor (KNN). (E) was the superpixel classification result, and F was the wheat spikes segmentation result].
