libmagick++-6.q16-8 8:6.9.10.23+dfsg-2.1ubuntu11 (arm64 binary) in ubuntu focal

 The Magick++ library is a set of C++ wrapper classes that provides access
 to the ImageMagick package functionality from within a C++ application.
 .
 This package contains the C++ libraries needed to run executables that make
 use of libMagick++.
 .
 This version of libmagick++ is compiled for a channel
 depth of 16 bits (Q16).