Method for performing box filter

Details Method for performing box filter Method for performing box filter

1996-03-01

1998-10-13

Mai, Tan V.

Boots, shoes, and leggings

36472413, G06F 1710

Patent

active

058222324

ABSTRACT:
A computer implemented method for box filtering an array of data. The method includes a first step of filtering the rows of an array. The rows are in packed data sequences, each sequence having a plurality of packed data elements. Each row is filtered by generating copies of the row, aligning the copies, and generating a sum of the copies. The sum is generated by simultaneously adding corresponding packed elements of two rows in response to executing a first instruction. The columns of the array are filtered by sequentially adding, in response to executing the first instruction, filtered rows to a preceding and succeeding filtered row.

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