[SOLVED] Imagemagick doesn't have delegates

Tem2 · 05-28-2020, 12:41 PM

I don't know a lot about the inner workings of ubuntu, or anything really, but I really want to create animated gifs.

It appears that Imagemagick will do this for me, but the error I get tells me that I don't have any delegates.

In my research I found that if I "installed from binary" it would include the delegates. I don't know what that means.

And when I uninstall Imagemagick it still gives the following output when I execute "convert -version":

Quote:

Version: ImageMagick 7.0.10-0 Q16 i686 2020-05-26 https://imagemagick.org
Copyright: © 1999-2020 ImageMagick Studio LLC
License: https://imagemagick.org/script/license.php
Features: Cipher DPC HDRI OpenMP(4.0)
Delegates (built-in):

I have ubuntu 16.04 32 bit.

Please help.

ondoho · 05-28-2020, 01:12 PM

Show us the full command you used and all the output you got from it.
Use code tags for that.

Also have a read.

Tem2 · 05-28-2020, 01:26 PM

Quote:

Originally Posted by ondoho

Show us the full command you used and all the output you got from it.
Use code tags for that.

Also have a read.

To uninstall I used:

Code:

sudo apt remove --purge imagemagick

And then:

Code:

convert -version

Tem2 · 05-28-2020, 01:34 PM

Quote:

Originally Posted by ondoho

Show us the full command you used and all the output you got from it.
Use code tags for that.

Also have a read.

When I installed it I used:

Code:

sudo apt-get install imagemagick

I probably have made a mess, because when I search for Imagemagick in the application finder I get two instances.

Do I have to start from scratch with a new ubuntu install? Or is there a way to clean this up?

Here is the error that tells me I don't have the delegates:

Code:

master@master-Latitude-E6400:~$ ls *.jpeg
1.jpeg
master@master-Latitude-E6400:~$ identify 1.jpeg
identify: no decode delegate for this image format `JPEG' @ error/constitute.c/ReadImage/562.

ondoho · 05-28-2020, 01:46 PM

Quote:

Originally Posted by Tem2

Code:

master@master-Latitude-E6400:~$ ls *.jpeg
1.jpeg
master@master-Latitude-E6400:~$ identify 1.jpeg
identify: no decode delegate for this image format `JPEG' @ error/constitute.c/ReadImage/562.

That is certainly weird.
1. is it really an image? show us 'file 1.jpeg'
2. try renaming it to 1.jpg?

Tem2 · 05-28-2020, 02:05 PM

Quote:

Originally Posted by ondoho

That is certainly weird.
1. is it really an image? show us 'file 1.jpeg'
2. try renaming it to 1.jpg?

Code:

master@master-Latitude-E6400:~$ mv 1.jpeg 1.jpg
master@master-Latitude-E6400:~$ ls *.jpg
1.jpg
master@master-Latitude-E6400:~$ identify 1.jpg
identify: no decode delegate for this image format `JPG' @ error/constitute.c/ReadImage/562.

I was able to uninstall both instances of Imagemagick using the Gnome Software Manager, but every time I reinstall it I get two instances. Is this normal?

Tem2 · 05-28-2020, 02:08 PM

Quote:

Originally Posted by ondoho

That is certainly weird.
1. is it really an image? show us 'file 1.jpeg'
2. try renaming it to 1.jpg?

This is the image file.

shruggy · 05-28-2020, 03:20 PM

Hm.

Code:

$ rpm -qf /usr/bin/identify
ImageMagick-6.9.10.86-1.el8.x86_64
$ identify 1.jpeg
1.jpeg JPEG 355x353 355x353+0+0 8-bit sRGB 31388B 0.000u 0:00.000

Code:

$ dpkg -S usr/bin/identify
imagemagick-6.q16hdri: /usr/bin/identify-im6.q16hdri
imagemagick-6.q16: /usr/bin/identify-im6.q16
$ identify-im6.q16 1.jpeg
1.jpeg JPEG 355x353 355x353+0+0 8-bit sRGB 31388B 0.000u 0:00.019
$ identify-im6.q16hdri 1.jpeg
1.jpeg JPEG 355x353 355x353+0+0 8-bit sRGB 31388B 0.000u 0:00.000

Tem2 · 05-28-2020, 04:24 PM

Quote:

Originally Posted by shruggy

Hm.

Code:

$ rpm -qf /usr/bin/identify
ImageMagick-6.9.10.86-1.el8.x86_64
$ identify 1.jpeg
1.jpeg JPEG 355x353 355x353+0+0 8-bit sRGB 31388B 0.000u 0:00.000

Code:

$ dpkg -S usr/bin/identify
imagemagick-6.q16hdri: /usr/bin/identify-im6.q16hdri
imagemagick-6.q16: /usr/bin/identify-im6.q16
$ identify-im6.q16 1.jpeg
1.jpeg JPEG 355x353 355x353+0+0 8-bit sRGB 31388B 0.000u 0:00.019
$ identify-im6.q16hdri 1.jpeg
1.jpeg JPEG 355x353 355x353+0+0 8-bit sRGB 31388B 0.000u 0:00.000

Do I need to reinstall Ubuntu?

rnturn · 05-28-2020, 11:58 PM

Quote:

Originally Posted by Tem2

Code:

master@master-Latitude-E6400:~$ mv 1.jpeg 1.jpg
master@master-Latitude-E6400:~$ ls *.jpg
1.jpg
master@master-Latitude-E6400:~$ identify 1.jpg
identify: no decode delegate for this image format `JPG' @ error/constitute.c/ReadImage/562.

I was able to uninstall both instances of Imagemagick using the Gnome Software Manager, but every time I reinstall it I get two instances. Is this normal?

Can you show the full listing showing these two instances? Try posting the output from:

Code:

$ find /usr -type f -iname identify -exec ls -l {} \;

What about issuing "stat /full/path/to/identify" for each instance you are seeing? Post the output from:

Code:

$ find /usr -type f -iname identify -exec stat {} \;

Where are they being installed? I'm wondering if you have a symbolic link defined in a directory tree that's pointing back to the location where it's actually being installed and that when you go searching for 'identify' it's finding it in that install directory and then again in the symlinked directory. What about other ImageMagick components? Are they appearing to be installed twice?

Which of the two "identify" instances you've identified (no pun intended) was executed when you got the "error/constitute" error message. (Use "which identify" to tell.) Do you get the same error message when you execute the other instance? Just spitballing here but: Do you have your current directory in your PATH? (I.e. "PATH=<stuff>:."? Is there by any slim chance a broken copy of "identify" in the directory where you're issuing the "identify" command?

BTW: I'm surely no expert on ImageMagick but the file extension doesn't mean anything; even renaming it to, say, "1.junk" won't make any difference to "identify".

Sorry I can't be more helpful. Post more details.

ondoho · 05-29-2020, 12:41 AM

Imagemagick should certainly "just work" for normal JPGs.

Please show us the output of these commands:

Code:

dpkg -S usr/bin/identify
sudo apt-get update

(I'm beginning to suspect a Frankenbuntu)

Tem2 · 05-29-2020, 12:34 PM

Quote:

Originally Posted by rnturn

Can you show the full listing showing these two instances? Try posting the output from:

Code:

$ find /usr -type f -iname identify -exec ls -l {} \;

What about issuing "stat /full/path/to/identify" for each instance you are seeing? Post the output from:

Code:

$ find /usr -type f -iname identify -exec stat {} \;

Where are they being installed? I'm wondering if you have a symbolic link defined in a directory tree that's pointing back to the location where it's actually being installed and that when you go searching for 'identify' it's finding it in that install directory and then again in the symlinked directory. What about other ImageMagick components? Are they appearing to be installed twice?

Which of the two "identify" instances you've identified (no pun intended) was executed when you got the "error/constitute" error message. (Use "which identify" to tell.) Do you get the same error message when you execute the other instance? Just spitballing here but: Do you have your current directory in your PATH? (I.e. "PATH=<stuff>:."? Is there by any slim chance a broken copy of "identify" in the directory where you're issuing the "identify" command?

BTW: I'm surely no expert on ImageMagick but the file extension doesn't mean anything; even renaming it to, say, "1.junk" won't make any difference to "identify".

Sorry I can't be more helpful. Post more details.

Code:

master@master-Latitude-E6400:~$ find /usr -type f -iname identify -exec ls -l {} \;
-rwxr-xr-x 1 root root 5628 Nov 12  2019 /usr/lib/i386-linux-gnu/ImageMagick-6.8.9/bin-Q16/identify
-rwxr-xr-x 1 root root 24316 May 26 18:09 /usr/local/src/ImageMagick-6.6.9-5/utilities/.libs/identify
-rwxr-xr-x 1 root root 7718 May 26 18:09 /usr/local/src/ImageMagick-6.6.9-5/utilities/identify
master@master-Latitude-E6400:~$

Code:

master@master-Latitude-E6400:~$ find /usr -type f -iname identify -exec stat {} \;
  File: '/usr/lib/i386-linux-gnu/ImageMagick-6.8.9/bin-Q16/identify'
  Size: 5628      	Blocks: 16         IO Block: 4096   regular file
Device: 801h/2049d	Inode: 925810      Links: 1
Access: (0755/-rwxr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2020-05-28 12:03:22.000000000 -0700
Modify: 2019-11-12 04:44:30.000000000 -0800
Change: 2020-05-28 12:03:22.974918455 -0700
 Birth: -
  File: '/usr/local/src/ImageMagick-6.6.9-5/utilities/.libs/identify'
  Size: 24316     	Blocks: 48         IO Block: 4096   regular file
Device: 801h/2049d	Inode: 921468      Links: 1
Access: (0755/-rwxr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2020-05-26 18:09:41.873308434 -0700
Modify: 2020-05-26 18:09:21.444951957 -0700
Change: 2020-05-26 18:09:21.444951957 -0700
 Birth: -
  File: '/usr/local/src/ImageMagick-6.6.9-5/utilities/identify'
  Size: 7718      	Blocks: 16         IO Block: 4096   regular file
Device: 801h/2049d	Inode: 922593      Links: 1
Access: (0755/-rwxr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2020-05-26 18:09:41.849308016 -0700
Modify: 2020-05-26 18:09:21.456952167 -0700
Change: 2020-05-26 18:09:21.456952167 -0700
 Birth: -
master@master-Latitude-E6400:~$

Tem2 · 05-29-2020, 12:38 PM

Quote:

Originally Posted by ondoho

Imagemagick should certainly "just work" for normal JPGs.

Please show us the output of these commands:

Code:

dpkg -S usr/bin/identify
sudo apt-get update

(I'm beginning to suspect a Frankenbuntu)

Code:

master@master-Latitude-E6400:~$ dpkg -S usr/bin/identify
imagemagick: /usr/bin/identify-im6
master@master-Latitude-E6400:~$

Code:

master@master-Latitude-E6400:~$ sudo apt-get update
[sudo] password for master: 
Hit:1 http://dl.google.com/linux/chrome/deb stable InRelease
Hit:2 http://us.archive.ubuntu.com/ubuntu xenial InRelease                     
Hit:3 http://us.archive.ubuntu.com/ubuntu xenial-updates InRelease             
Hit:4 http://ppa.launchpad.net/apandada1/brightness-controller/ubuntu xenial InRelease
Hit:5 http://security.ubuntu.com/ubuntu xenial-security InRelease              
Hit:6 http://us.archive.ubuntu.com/ubuntu xenial-backports InRelease           
Hit:7 http://ppa.launchpad.net/bitseater/ppa/ubuntu xenial InRelease           
Hit:8 http://ppa.launchpad.net/danielrichter2007/grub-customizer/ubuntu xenial InRelease
Hit:9 http://ppa.launchpad.net/ehoover/compholio/ubuntu xenial InRelease       
Ign:10 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial InRelease        
Hit:11 http://ppa.launchpad.net/kubuntu-ppa/backports/ubuntu xenial InRelease
Hit:12 http://ppa.launchpad.net/noobslab/apps/ubuntu xenial InRelease          
Hit:13 http://ppa.launchpad.net/otto-kesselgulasch/gimp-edge/ubuntu xenial InRelease
Hit:14 http://ppa.launchpad.net/otto-kesselgulasch/gimp/ubuntu xenial InRelease
Hit:15 http://ppa.launchpad.net/pipelight/stable/ubuntu xenial InRelease       
Hit:16 http://ppa.launchpad.net/rednotebook/stable/ubuntu xenial InRelease     
Hit:17 http://ppa.launchpad.net/yannubuntu/boot-repair/ubuntu xenial InRelease 
Ign:18 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial Release          
Ign:19 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main i386 Packages
Ign:20 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main all Packages
Ign:21 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main Translation-en_US
Ign:22 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main Translation-en
Ign:23 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main i386 DEP-11 Metadata
Ign:24 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main DEP-11 64x64 Icons
Ign:19 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main i386 Packages
Ign:20 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main all Packages
Ign:21 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main Translation-en_US
Ign:22 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main Translation-en
Ign:23 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main i386 DEP-11 Metadata
Ign:24 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main DEP-11 64x64 Icons
Ign:19 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main i386 Packages
Ign:20 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main all Packages
Ign:21 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main Translation-en_US
Ign:22 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main Translation-en
Ign:23 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main i386 DEP-11 Metadata
Ign:24 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main DEP-11 64x64 Icons
Ign:19 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main i386 Packages
Ign:20 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main all Packages
Ign:21 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main Translation-en_US
Ign:22 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main Translation-en
Ign:23 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main i386 DEP-11 Metadata
Ign:24 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main DEP-11 64x64 Icons
Ign:19 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main i386 Packages
Ign:20 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main all Packages
Ign:21 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main Translation-en_US
Ign:22 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main Translation-en
Ign:23 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main i386 DEP-11 Metadata
Ign:24 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main DEP-11 64x64 Icons
Err:19 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main i386 Packages
  404  Not Found [IP: 2001:67c:1560:8008::15 80]
Ign:20 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main all Packages
Ign:21 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main Translation-en_US
Ign:22 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main Translation-en
Ign:23 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main i386 DEP-11 Metadata
Ign:24 http://ppa.launchpad.net/kalakris/okular/ubuntu xenial/main DEP-11 64x64 Icons
Reading package lists... Done
W: The repository 'http://ppa.launchpad.net/kalakris/okular/ubuntu xenial Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: Failed to fetch http://ppa.launchpad.net/kalakris/okular/ubuntu/dists/xenial/main/binary-i386/Packages  404  Not Found [IP: 2001:67c:1560:8008::15 80]
E: Some index files failed to download. They have been ignored, or old ones used instead.
master@master-Latitude-E6400:~$

ondoho · 05-30-2020, 03:07 AM

Strange problem.
You seem to have two versions of the identify binary.

I am guessing that

Code:

which identify

defaults to the version in /usr/local.
Show us that, please.

Also:

Code:

apt search imagemagick
dpkg -L imagemagick

I'm guessing this will NOT list any files in /usr/local.

Did you at any point compile imagemagick yourself, or install it with something other than apt, apt-get, dpkg or graphical package manager?

PS: you might want to remove the okular ppa from your software sources.

Tem2 · 05-30-2020, 03:30 AM

Quote:

Originally Posted by ondoho

Strange problem.
You seem to have two versions of the identify binary.

I am guessing that

Code:

which identify

defaults to the version in /usr/local.
Show us that, please.

Also:

Code:

apt search imagemagick
dpkg -L imagemagick

I'm guessing this will NOT list any files in /usr/local.

Did you at any point compile imagemagick yourself, or install it with something other than apt, apt-get, dpkg or graphical package manager?

PS: you might want to remove the okular ppa from your software sources.

Code:

master@master-Latitude-E6400:~$ which identify
/usr/local/bin/identify
master@master-Latitude-E6400:~$

Code:

master@master-Latitude-E6400:~$ apt search imagemagick
Sorting... Done
Full Text Search... Done
caja-image-converter/xenial 1.12.0-1 i386
  Caja extension to mass resize or rotate images

epix/xenial 1.2.14-1 i386
  Create mathematically accurate line figures, plots and movies

fbi/xenial 2.10-1ubuntu2 i386
  Linux frame buffer image viewer

ffmulticonverter/xenial 1.8.0-z~xenial~NoobsLab.com all
  File format converter (audio, video, image and documents)

gambas3-gb-image/xenial-updates 3.8.4-2ubuntu3.1 i386
  Gambas image effects

gem-plugin-magick/xenial 1:0.93.3-9build1 i386
  Graphics Environment for Multimedia - ImageMagick support

gir1.2-vips-8.0/xenial 8.2.2-1 i386
  GObject introspection data for VIPS

gkrellshoot/xenial 0.4.4-1 i386
  Plugin for gkrellm to lock the screen and make screenshots

goby/xenial 1.1+0.20140625-1 all
  WYSIWYG presentation tool for Emacs

graphicsmagick/xenial-updates,xenial-security 1.3.23-1ubuntu0.6 i386
  collection of image processing tools

graphicsmagick-dbg/xenial-updates,xenial-security 1.3.23-1ubuntu0.6 i386
  format-independent image processing - debugging symbols

graphicsmagick-imagemagick-compat/xenial-updates,xenial-security 1.3.23-1ubuntu0.6 all
  image processing tools providing ImageMagick interface

graphicsmagick-libmagick-dev-compat/xenial-updates,xenial-security 1.3.23-1ubuntu0.6 all
  image processing libraries providing ImageMagick interface

groff/xenial 1.22.3-7 i386
  GNU troff text-formatting system

imageinfo/xenial 0.04-0ubuntu10 i386
  Displays selected image attributes

imagemagick/xenial-updates,xenial-security,now 8:6.8.9.9-7ubuntu5.15 i386 [installed]
  image manipulation programs -- binaries

imagemagick-6.q16/xenial-updates,xenial-security,now 8:6.8.9.9-7ubuntu5.15 i386 [installed,automatic]
  image manipulation programs -- quantum depth Q16

imagemagick-common/xenial-updates,xenial-security,now 8:6.8.9.9-7ubuntu5.15 all [installed,automatic]
  image manipulation programs -- infrastructure

imagemagick-dbg/xenial-updates,xenial-security 8:6.8.9.9-7ubuntu5.15 i386
  debugging symbols for ImageMagick

imagemagick-doc/xenial-updates,xenial-security 8:6.8.9.9-7ubuntu5.15 all
  document files of ImageMagick

imgsizer/xenial 2.7-3 all
  Adds WIDTH and HEIGHT attributes to IMG tags in HTML files

jmagick6-docs/xenial 6.6.9~20130201-svn99-2ubuntu2 all
  java interface to ImageMagick - api documentation

libchart-gnuplot-perl/xenial 0.23-1 all
  module for generating two- and three-dimensional plots

libgraphics-magick-perl/xenial-updates,xenial-security 1.3.23-1ubuntu0.6 i386
  format-independent image processing - perl interface

libgraphicsmagick++-q16-12/xenial-updates,xenial-security 1.3.23-1ubuntu0.6 i386
  format-independent image processing - C++ shared library

libgraphicsmagick++1-dev/xenial-updates,xenial-security 1.3.23-1ubuntu0.6 i386
  format-independent image processing - C++ development files

libgraphicsmagick-q16-3/xenial-updates,xenial-security 1.3.23-1ubuntu0.6 i386
  format-independent image processing - C shared library

libgraphicsmagick1-dev/xenial-updates,xenial-security 1.3.23-1ubuntu0.6 i386
  format-independent image processing - C development files

libimage-magick-perl/xenial-updates,xenial-security 8:6.8.9.9-7ubuntu5.15 all
  Perl interface to the ImageMagick graphics routines

libimage-magick-q16-perl/xenial-updates,xenial-security 8:6.8.9.9-7ubuntu5.15 i386
  Perl interface to the ImageMagick graphics routines -- Q16 version

libjmagick6-java/xenial 6.6.9~20130201-svn99-2ubuntu2 all
  java interface to ImageMagick - java classes

libjmagick6-jni/xenial 6.6.9~20130201-svn99-2ubuntu2 i386
  java interface to ImageMagick - native library

libmagick++-6-headers/xenial-updates,xenial-security 8:6.8.9.9-7ubuntu5.15 all
  object-oriented C++ interface to ImageMagick - header files

libmagick++-6.q16-5v5/xenial-updates,xenial-security 8:6.8.9.9-7ubuntu5.15 i386
  object-oriented C++ interface to ImageMagick

libmagick++-6.q16-dev/xenial-updates,xenial-security 8:6.8.9.9-7ubuntu5.15 i386
  object-oriented C++ interface to ImageMagick - development files

libmagick++-dev/xenial-updates,xenial-security 8:6.8.9.9-7ubuntu5.15 all
  object-oriented C++ interface to ImageMagick

libmagickcore-6-arch-config/xenial-updates,xenial-security 8:6.8.9.9-7ubuntu5.15 i386
  low-level image manipulation library - architecture header files

libmagickcore-6-headers/xenial-updates,xenial-security 8:6.8.9.9-7ubuntu5.15 all
  low-level image manipulation library - header files

libmagickcore-6.q16-2/xenial-updates,xenial-security,now 8:6.8.9.9-7ubuntu5.15 i386 [installed,automatic]
  low-level image manipulation library -- quantum depth Q16

libmagickwand-6-headers/xenial-updates,xenial-security 8:6.8.9.9-7ubuntu5.15 all
  image manipulation library - headers files

libmagickwand-6.q16-2/xenial-updates,xenial-security,now 8:6.8.9.9-7ubuntu5.15 i386 [installed,automatic]
  image manipulation library

libreoffice/xenial-updates,xenial-security 1:5.1.6~rc2-0ubuntu1~xenial10 i386
  office productivity suite (metapackage)

libvips-dev/xenial 8.2.2-1 i386
  image processing system good for very large images (dev)

libvips-doc/xenial 8.2.2-1 all
  image processing system good for very large images (doc)

libvips-tools/xenial 8.2.2-1 i386
  image processing system good for very large images (tools)

libvips42/xenial 8.2.2-1 i386
  image processing system good for very large images

nautilus-image-converter/xenial-updates 0.3.1~git20110416-1ubuntu1.16.04.1 i386
  nautilus extension to mass resize or rotate images

nip2/xenial 8.2-1 i386
  spreadsheet-like graphical image manipulation tool

octave-image/xenial 2.4.1-1 i386
  image manipulation for Octave

perlmagick/xenial-updates,xenial-security 8:6.8.9.9-7ubuntu5.15 all
  Perl interface to ImageMagick -- transition package

php-horde-image/xenial 2.3.4-2 all
  Horde Image API

php-imagick/xenial 3.4.0~rc6-1ubuntu3 i386
  Provides a wrapper to the ImageMagick library

pypy-wand/xenial 0.3.9-1 all
  Python interface for ImageMagick library (PyPy build)

python-pythonmagick/xenial 0.9.11-2ubuntu2 i386
  Object-oriented Python interface to ImageMagick

python-sorl-thumbnail/xenial 12.2-1 all
  thumbnail support for the Django framework

python-sorl-thumbnail-doc/xenial 12.2-1 all
  thumbnail support for the Django framework (Documentation)

python-vipscc/xenial 8.2.2-1 i386
  image processing system good for very large images (tools)

python-wand/xenial 0.3.9-1 all
  Python interface for ImageMagick library (Python 2 build)

python3-sorl-thumbnail/xenial 12.2-1 all
  thumbnail support for the Django framework (Python3 version)

python3-wand/xenial 0.3.9-1 all
  Python interface for ImageMagick library (Python 3 build)

rubber/xenial 1.4-2 all
  automated system for building LaTeX documents

ruby-fastimage/xenial 1.6.8-1 all
  Ruby library for finding the size or type of image with minimal dependency

ruby-mini-magick/xenial 4.4.0-1 all
  wrapper for ImageMagick with a small memory footprint

ruby-oily-png/xenial 1.1.0-5build6 i386
  native mixin to speed up ChunkyPNG

ruby-rmagick/xenial 2.15.4-2build3 i386
  ImageMagick API for Ruby

ruby-rmagick-doc/xenial 2.15.4-2build3 all
  ImageMagick API for Ruby (documentation)

tex4ht/xenial 20090611-1.1build1 i386
  LaTeX and TeX for Hypertext (HTML) - executables

tex4ht-common/xenial 20090611-1.1build1 all
  LaTeX and TeX for Hypertext (HTML) - support files

wand-doc/xenial 0.3.9-1 all
  Python interface for ImageMagick library - documentation

worker/xenial 3.8.2-1 i386
  highly configurable two-paned file manager for X

wv/xenial 1.2.9-4.2 i386
  Programs for accessing Microsoft Word documents

xcrysden/xenial 1.5.60-1 i386
  Crystalline and Molecular Structure Visualizer

master@master-Latitude-E6400:~$

Code:

master@master-Latitude-E6400:~$ dpkg -L imagemagick
/.
/usr
/usr/lib
/usr/lib/mime
/usr/lib/mime/packages
/usr/lib/mime/packages/imagemagick
/usr/share
/usr/share/applications
/usr/share/applications/display-im6.desktop
/usr/share/bug
/usr/share/bug/imagemagick
/usr/share/bug/imagemagick/script
/usr/share/bug/imagemagick/presubj
/usr/share/doc
/usr/share/doc/imagemagick
/usr/share/doc/imagemagick/copyright
/usr/share/menu
/usr/share/menu/imagemagick
/usr/share/man
/usr/share/man/man1
/usr/share/man/man1/identify-im6.1.gz
/usr/share/man/man1/convert-im6.1.gz
/usr/share/man/man1/import-im6.1.gz
/usr/share/man/man1/animate-im6.1.gz
/usr/share/man/man1/stream-im6.1.gz
/usr/share/man/man1/montage-im6.1.gz
/usr/share/man/man1/conjure-im6.1.gz
/usr/share/man/man1/compare-im6.1.gz
/usr/share/man/man1/composite-im6.1.gz
/usr/share/man/man1/mogrify-im6.1.gz
/usr/share/man/man1/display-im6.1.gz
/usr/bin
/usr/share/doc/imagemagick/changelog.Debian.gz
/usr/share/doc/imagemagick/NEWS.Debian.gz
/usr/bin/identify-im6
/usr/bin/convert-im6
/usr/bin/montage-im6
/usr/bin/compare-im6
/usr/bin/composite-im6
/usr/bin/stream-im6
/usr/bin/import-im6
/usr/bin/animate-im6
/usr/bin/conjure-im6
/usr/bin/display-im6
/usr/bin/mogrify-im6
master@master-Latitude-E6400:~$

Quote:

Did you at any point compile imagemagick yourself, or install it with something other than apt, apt-get, dpkg or graphical package manager?

PS: you might want to remove the okular ppa from your software sources.

To be honest, I wouldn't know how to compile it, and I don't think I installed it in any other way than the apt.

Also, I apologize but I don't know how to remove okular ppa from my software sources. :-1