Find the max value in a kernal

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Steve Scott
Steve Scott 2018 年 3 月 8 日
編集済み: Roger Stafford 2018 年 3 月 8 日
I need to iterate over a 2d array finding the maximum value inside a given kernel. However, the kernel is custom, not square.

回答 (1 件)

Roger Stafford
Roger Stafford 2018 年 3 月 8 日
編集済み: Roger Stafford 2018 年 3 月 8 日
Let M be your matrix. Let R be a vector of the matrix's row subscripts of your kernel, and let C be a vector of corresponding column subscripts of the kernel. Then do:
mx = max(M(sub2ind(size(M),R,C))); % mx is maximum of M in kernel

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