Maybe I'll int the whole structure from orbit since they are integer pixels anyway.

BTW, it's curios, too: int not only returns value, but marks its argument variable as 'IOK' if it 'looks like integer', even when called in void context. Therefore subsequent access as string caches PV. Clever Perl.

C:\>perl -MDevel::Peek -e "$x=42.0; int $x; qq/$x/; Dump $x"
SV = PVNV(0x38bb4) at 0xd2227c
  REFCNT = 1
  FLAGS = (IOK,NOK,POK,pIOK,pNOK,pPOK)
  IV = 42
  NV = 42
  PV = 0xd162ac "42"\0
  CUR = 2
  LEN = 10
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