Install ImageScience on slicehost ubuntu hardy

Before you can install ImageScience you must install FreeImage & RubyInline. ImageScience requires it.

Step 1: Install FreeImage

sudo apt-get install build-essential
cd ~/sources
wget http://ftp.cica.es/ubuntu/ubuntu/pool/universe/f/freeimage/freeimage_3.9.3.orig.tar.gz
tar -xvf freeimage_3.9.3.orig.tar.gz
cd freeimage-3.9.3.repacked/FreeImage
make 
sudo make install

Step #2: Install RubyInline

sudo gem install RubyInline -v 3.6.3
# I install version 3.6.3 because the latest version has problems with scrubyt which I sometimes use.

Step #3: Install ImageScience

sudo gem install image_science

References
- Intall FreeImage & ImageScience on Ubuntu Gutsy

2 Responses | September 4, 2008

Comments

  1. Brian | September 17, 2008

    Hi Everyone,

    Getting FreeImage working was a freakin nightmare. But I thougt I’d leave a trail for those who follow.

    I got it up and going decently at first, gif’s worked, but not jpegs. I eventually tracked down this, which talks about some conflict with the jpeg library:
    https://bugs.launchpad.net/ubuntu/+source/freeimage/+bug/128026

    If your production environment happens to be Ubuntu Gutsy like me (on slicehost) then you might find this useful:

    http://pastie.org/pastes/104754

    I don’t know who put it there but it saved my bacon.

    FYI, there were some other things i had to do to get that working. For example, I had to change line 8 to this:
    apt-get source libjpeg6b

    I also had to install some tools along the way as I got errors, such as:
    sudo apt-get install liburi-perl
    sudo apt-get install fakeroot

    Also, after running line 23 I got an error like this:

    Now signing changes and any dsc files…
    signfile freeimage_3.9.3-3ubuntu1.dsc Brian Armstrong
    gpg: skipped “Brian Armstrong “: secret key not available
    gpg: [stdin]: clearsign failed: secret key not available
    debsign: gpg error occurred! Aborting….
    debuild: fatal error at line 1174:
    running debsign failed
    debuild returned 29
    Couldn’t run ‘debuild -i\.git/ -I.git’

    Which was only resolved by going and reading about gpg:
    http://www.quantumlab.net/pine_privacy_guard/howto_setup_gpg.html

    I had to go through the steps of “gpg –gen-key” and create a passphrase with that exact name and info “Brian Armstrong “. Before line 23 would run.

    I have no idea what any of this does…personally I hate anything that invovles a “make install” to get it working (mostly because it never seems to work right).

    I can’t believe it’s really this hard to get this working. Anyway, thanks to ImageScience for a cool program…I know it’s not your fault FreeImage is so difficult.

    Best of luck to everyone, and I really hope these things get easier over time for rails developers everywhere.
    Brian
    brian at startbreakingfree dot com

  2. apie | December 11, 2008

    tanks!