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Bestul T. Davis L.S. 《IEEE transactions on pattern analysis and machine intelligence》1989,11(2):212-213
An algorithm for the computation of the histogram of limited-width (such as gray-level) values on a SIMD (single-instructions multiple-data) hypercube multiprocessor is proposed, which does not require the use of a general interconnection capability such as that on the connection machine. The computation of the complete histogram of n such values takes place in a series of log n steps, after which the histogram for value i can be found in the lowest-addressed processor whose address ends in i . The algorithm makes use of the association of suffixes of data values of increasing width with suffixes of processor addresses 相似文献
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