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261 lines
6.9 KiB
HTML
261 lines
6.9 KiB
HTML
<!DOCTYPE html>
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<meta property="og:title" content="March, 2017" />
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<meta property="og:description" content="2017-03-01
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Run the 279 CIAT author corrections on CGSpace
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2017-03-02
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Filed an issue on DSpace issue tracker for the filter-media bug that causes it to process JPGs even when limiting to the PDF thumbnail plugin: DS-3516
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Discovered that the ImageMagic filter-media plugin creates JPG thumbnails with the CMYK colorspace when the source PDF is using CMYK
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Interestingly, it seems DSpace 4.x’s thumbnails were sRGB, but forcing regeneration using DSpace 5.x’s ImageMagick plugin creates CMYK JPGs if the source PDF was CMYK (see 10568⁄51999):
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$ identify ~/Desktop/alc_contrastes_desafios.jpg
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/Users/aorth/Desktop/alc_contrastes_desafios.jpg JPEG 464x600 464x600+0+0 8-bit CMYK 168KB 0.000u 0:00.000
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" />
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<meta property="og:type" content="article" />
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<meta property="og:url" content="https://alanorth.github.io/cgspace-notes/2017-03/" />
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<meta property="article:published_time" content="2017-03-01T17:08:52+02:00"/>
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<meta property="article:modified_time" content="2017-03-03T01:32:54+02:00"/>
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<meta name="twitter:title" content="March, 2017"/>
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<meta name="twitter:description" content="2017-03-01
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Run the 279 CIAT author corrections on CGSpace
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2017-03-02
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Filed an issue on DSpace issue tracker for the filter-media bug that causes it to process JPGs even when limiting to the PDF thumbnail plugin: DS-3516
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Discovered that the ImageMagic filter-media plugin creates JPG thumbnails with the CMYK colorspace when the source PDF is using CMYK
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Interestingly, it seems DSpace 4.x’s thumbnails were sRGB, but forcing regeneration using DSpace 5.x’s ImageMagick plugin creates CMYK JPGs if the source PDF was CMYK (see 10568⁄51999):
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$ identify ~/Desktop/alc_contrastes_desafios.jpg
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/Users/aorth/Desktop/alc_contrastes_desafios.jpg JPEG 464x600 464x600+0+0 8-bit CMYK 168KB 0.000u 0:00.000
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"/>
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<meta name="generator" content="Hugo 0.19" />
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{
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"@context": "http://schema.org",
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"@type": "BlogPosting",
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"headline": "March, 2017",
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"url": "https://alanorth.github.io/cgspace-notes/2017-03/",
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"wordCount": "113",
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"datePublished": "2017-03-01T17:08:52+02:00",
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"dateModified": "2017-03-03T01:32:54+02:00",
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"author": {
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"name": "Alan Orth"
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<link rel="canonical" href="https://alanorth.github.io/cgspace-notes/2017-03/">
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<title>March, 2017 | CGSpace Notes</title>
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<a class="nav-link " href="https://alanorth.github.io/cgspace-notes/">Home</a>
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<header class="blog-header">
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<h1 class="blog-title"><a href="https://alanorth.github.io/cgspace-notes/" rel="home">CGSpace Notes</a></h1>
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<p class="lead blog-description">Documenting day-to-day work on the <a href="https://cgspace.cgiar.org">CGSpace</a> repository.</p>
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<article class="blog-post">
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<header>
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<h2 class="blog-post-title"><a href="https://alanorth.github.io/cgspace-notes/2017-03/">March, 2017</a></h2>
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<p class="blog-post-meta"><time datetime="2017-03-01T17:08:52+02:00">Wed Mar 01, 2017</time> by Alan Orth in
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<i class="fa fa-tag" aria-hidden="true"></i> <a href="/cgspace-notes/tags/notes" rel="tag">Notes</a>
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</p>
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</header>
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<h2 id="2017-03-01">2017-03-01</h2>
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<ul>
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<li>Run the 279 CIAT author corrections on CGSpace</li>
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</ul>
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<h2 id="2017-03-02">2017-03-02</h2>
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<ul>
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<li>Filed an issue on DSpace issue tracker for the <code>filter-media</code> bug that causes it to process JPGs even when limiting to the PDF thumbnail plugin: <a href="https://jira.duraspace.org/browse/DS-3516">DS-3516</a></li>
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<li>Discovered that the ImageMagic <code>filter-media</code> plugin creates JPG thumbnails with the CMYK colorspace when the source PDF is using CMYK</li>
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<li>Interestingly, it seems DSpace 4.x’s thumbnails were sRGB, but forcing regeneration using DSpace 5.x’s ImageMagick plugin creates CMYK JPGs if the source PDF was CMYK (see <a href="https://cgspace.cgiar.org/handle/10568/51999"><sup>10568</sup>⁄<sub>51999</sub></a>):</li>
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</ul>
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<pre><code>$ identify ~/Desktop/alc_contrastes_desafios.jpg
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/Users/aorth/Desktop/alc_contrastes_desafios.jpg JPEG 464x600 464x600+0+0 8-bit CMYK 168KB 0.000u 0:00.000
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</code></pre>
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<p></p>
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<ul>
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<li>This results in discolored thumbnails, sRGB and CMYK:</li>
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</ul>
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<p><img src="/cgspace-notes/2017/03/thumbnail-srgb.jpg" alt="Thumbnail in sRGB colorspace" /></p>
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<p><img src="/cgspace-notes/2017/03/thumbnail-cmyk.jpg" alt="Thumbnial in CMYK colorspace" /></p>
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<ul>
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<li>I filed an issue for the color space thing: <a href="https://jira.duraspace.org/browse/DS-3517">DS-3517</a></li>
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</ul>
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</article>
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</div> <!-- /.blog-main -->
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<aside class="col-sm-3 offset-sm-1 blog-sidebar">
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<section class="sidebar-module">
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<h4>Recent Posts</h4>
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<ol class="list-unstyled">
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<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
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<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
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<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
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<li><a href="/cgspace-notes/2016-12/">December, 2016</a></li>
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<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
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</ol>
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</section>
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<section class="sidebar-module">
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<h4>Links</h4>
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<ol class="list-unstyled">
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<li><a href="https://cgspace.cgiar.org">CGSpace</a></li>
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<li><a href="https://dspacetest.cgiar.org">DSpace Test</a></li>
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<li><a href="https://github.com/ilri/DSpace">CGSpace @ GitHub</a></li>
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</ol>
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</section>
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</aside>
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</div> <!-- /.row -->
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</div> <!-- /.container -->
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<footer class="blog-footer">
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<p>
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Blog template created by <a href="https://twitter.com/mdo">@mdo</a>, ported to Hugo by <a href='https://twitter.com/mralanorth'>@mralanorth</a>.
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<a href="#">Back to top</a>
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