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POocropus installation on Ubuntu 11.04
 

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  1. POocropus installation on Ubuntu 11.04
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    <p>I need to install ocropus on Ubuntu 11.04. </p> <p>I went through a long and painful process of trying ocropus 0.3 and 0.4 from the project's Downloads page, but to no avail - I could find no way of making it locate tesseract, which it recommended. I labored on Google and came across the page <a href="http://code.google.com/p/ocropus/wiki/InstallTranscript" rel="nofollow noreferrer">http://code.google.com/p/ocropus/wiki/InstallTranscript</a>.</p> <p>Great. Except when I issue the command:</p> <pre><code>hg clone $release https://ocropus.googlecode.com/hg/ ocropus </code></pre> <p>I get the error message:</p> <pre><code>abort: unknown revision 'ocropus-0.4.4'! </code></pre> <p>A post here <a href="http://aur.archlinux.org/packages.php?ID=13444" rel="nofollow noreferrer">http://aur.archlinux.org/packages.php?ID=13444</a> by the maintainer of the ocropus package for archlinux says</p> <blockquote> <p>they have completely refactored ocropus and at the same time they have also completely removed the old repository so it's not possible to access the old "stable" versions. I suggest using the ocropus-hg package, at least for the time being. </p> </blockquote> <p>I thought I would go ahead with this idea and issued the command:</p> <pre><code>hg clone https://ocropus.googlecode.com/hg/ ocropus #I deftly avoid any mention of the release </code></pre> <p>The result is I get a folder with a file interestingly named ocroinst. I run it and it says I need to run the following commands:</p> <pre><code>sudo ./ocroinst packages #checks the dependencies ./ocroinst install #installs ocropus sudo ./ocroinst dl #downloads models </code></pre> <p>I was glad and I issued the first command, which is when I got the message:</p> <blockquote> <p>Package libjpeg8-dev is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package libjpeg8-dev has no installation candidate</p> </blockquote> <p>I think a certain Murphy may have had a point.</p> <p>The situation, with an delicious added complication, is this:</p> <p>(please correct me if I am wrong)</p> <ol> <li><p>Ubuntu 11.04 comes with libjpeg62-dev. The required version for ocropus is libjpeg8-dev.</p></li> <li><p>Ocropus requires libtiff4-dev, and libtiff4-dev depends on libjpeg62-dev. Therefore there is no way for me to uninstall libjpeg62-dev.</p></li> <li><p>libjpeg62-dev conflicts with libjpeg8-dev. Therefore, I can have only one of libjpeg8-dev or libjpeg62-dev, and never both.</p></li> <li><p>If libjpeg8-dev is installed, I will have no libjpeg62-dev, which means I must remove libtiff4-dev and therefore have no way to install ocropus.</p></li> <li><p>If libjpeg62-dev is installed, I will have no libjpeg8-dev and thus I will have no way to install ocropus.</p></li> </ol> <p><strong>NOTE:</strong></p> <p>(An experiment description)</p> <p>I had libjpeg62-dev installed on the system already. I figured I could take a chance and I went right ahead and changed every libjpeg8-dev I could find to <em>libjpeg-dev</em>, and ran the 3 commands. </p> <p>It installed. No error. </p> <p>This gave me great joy until I ran the command </p> <pre><code>ocropus &lt;image-file-name&gt; </code></pre> <p>and I was greeted by the charming:</p> <pre><code>ImportError: /usr/local/lib/python2.6/dist-packages/_iulib.so: undefined symbol: _ZN5iulib6dcloseEv </code></pre> <p>The more sophisticated </p> <pre><code>ocropus book2pages out image* </code></pre> <p>failed with the same error. A <a href="https://stackoverflow.com/questions/5134118/installing-ocropus-0-4-4">post on stack overflow</a> indicates that this is caused by incorrectly versioned libraries.</p> <p><strong>THE QUESTION:</strong></p> <p>How should I proceed?</p> <p>Thanks in advance.</p>
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