Not all of these rdepends are real, but the ones that are will need to be tested (not language packs, not packages part of the gimp source package, and not metapackages).
$ apt-cache rdepends gimp gimp Reverse Depends: libgimp2.0 imagemagick |gimp-dbg gimp-data gimp-data gimp-data mandvd grokking-the-gimp exult-studio xubuntu-desktop xsane xfig xcftools xcftools ubuntustudio-graphics stopmotion stereograph sane rabbit photon pandora osgcal openclipart-png open-font-design-toolkit mtink mrwtoppm-gimp mirage junior-art gworkspace-apps-wrappers gtkam-gimp |gnumed-client gnome-office gimp-ufraw gimp-texturize gimp-resynthesizer gimp-plugin-registry gimp-plugin-registry gimp-normalmap gimp-gutenprint gimp-gutenprint gimp-gmic gimp-gmic gimp-gluas gimp-gap gimp-dimage-color gimp-dcraw gimp-data-extras gimp-cbmplugs geeqie-gps geeqie flegita-gimp ezgo-imaging extremetuxracer-gimp-dev edubuntu-desktop brdesktop-gnome libgimp2.0 kipi-plugins kdesdk-misc imagemagick gimp-help-sv gimp-help-ru gimp-help-pl gimp-help-no gimp-help-nl gimp-help-ko gimp-help-it gimp-help-fr gimp-help-es gimp-help-en gimp-help-de |gimp-dbg gimp-data
Not all of these rdepends are real, but the ones that are will need to be tested (not language packs, not packages part of the gimp source package, and not metapackages).
$ apt-cache rdepends gimp graphics font-design- toolkit apps-wrappers resynthesizer plugin- registry plugin- registry er-gimp- dev
gimp
Reverse Depends:
libgimp2.0
imagemagick
|gimp-dbg
gimp-data
gimp-data
gimp-data
mandvd
grokking-the-gimp
exult-studio
xubuntu-desktop
xsane
xfig
xcftools
xcftools
ubuntustudio-
stopmotion
stereograph
sane
rabbit
photon
pandora
osgcal
openclipart-png
open-
mtink
mrwtoppm-gimp
mirage
junior-art
gworkspace-
gtkam-gimp
|gnumed-client
gnome-office
gimp-ufraw
gimp-texturize
gimp-
gimp-
gimp-
gimp-normalmap
gimp-gutenprint
gimp-gutenprint
gimp-gmic
gimp-gmic
gimp-gluas
gimp-gap
gimp-dimage-color
gimp-dcraw
gimp-data-extras
gimp-cbmplugs
geeqie-gps
geeqie
flegita-gimp
ezgo-imaging
extremetuxrac
edubuntu-desktop
brdesktop-gnome
libgimp2.0
kipi-plugins
kdesdk-misc
imagemagick
gimp-help-sv
gimp-help-ru
gimp-help-pl
gimp-help-no
gimp-help-nl
gimp-help-ko
gimp-help-it
gimp-help-fr
gimp-help-es
gimp-help-en
gimp-help-de
|gimp-dbg
gimp-data