cp =: (<1 1)&{ NB. center pixel of 3x3
tess =: 2 2$3 NB. tesselate
trim =: >@(tess &(cp;._3))@:(<"1)
trim =: ,"_2@(tess &(cp;._3))@:(]"1)
I have found the trim's above both accomplish the desired result. My
question especially is, how can the rank "1 in the latter trim be
incorporated without the trailing @(). Any other suggestions to achieve
speed improvements would be appreciated, too.
I am experimenting with the following phrase, for example, and when
applying rank directly, without the @:() I get length error.
trim i. 7 10 3 NB. a fake rgb image argument
Thank you,
--
(B=)
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