[bug #68049] imread() is slow

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Follow-up Comment #2, bug #68049 (group octave):=0A=0ARe-base post code ref=
actoring, rewrite (hopefully improved) summary, added=0ABIST. =0A(file bug6=
8049_magick_read_fast_20260626_100.cset)=0A=0ADmitri.=0A-- =0A=0A=0A(file #=
58761)=0A=0A    _______________________________________________________=0A=
=0AAdditional Item Attachment:=0A=0AName: bug68049_magick_read_fast_2026062=
6_100.cset Size: 32KiB=0A=0A<https://file.savannah.gnu.org/file/bug68049_ma=
gick_read_fast_20260626_100.cset?file_id=3D58761>=0A=0A=0A    AGPL NOTICE=
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