Canny edge detector: Difference between revisions

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 addborder =: (0&,@|:@|.)^:4
 normalize =: ]%+/@,
-resample  =: 4 : '|: (1{-x)(+/%#)\ |: (0{-x)(+/%#)\ y'
 attach =: 3 : 'max3x3 (3 3 partition (addborder y))'
 unique =: 3 : 'y*i.$y'
 connect =: 3 : 'attach^:_ unique y'
-NB. on low memory devices, cropping may be needed
+NB. on low memory devices, cropping or resampling may be required
 crop      =: 4 : 0
    'h w h0 w0' =: x
    |: w{. w0}. |: h{. h0}. y
 )
+resample  =: 4 : '|: (1{-x)(+/%#)\ |: (0{-x)(+/%#)\ y'
 NB. on small screen devices, image may need to be expanded for viewing
 inflate1 =: 4 : 0