Thanks. I can allow myself :) to run all my code under new versions, and disregard performance issues of $&. Btw, using $& instead of creating capture groups and $1 gives a slight boost to "buk3". Also, I earlier experimented with "yr" - using "pos" (as it is) also gives quite a boost against using $-[0] or $+[0].

In reply to Re^6: PDL: Looking for efficient way to extract sub-images, by finding bounding boxes of "objects" (FAQ6: $&) by vr
in thread PDL: Looking for efficient way to extract sub-images, by finding bounding boxes of "objects" by vr

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