cgspace-notes/public/2017-03/index.html

261 lines
6.9 KiB
HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta property="og:title" content="March, 2017" />
<meta property="og:description" content="2017-03-01
Run the 279 CIAT author corrections on CGSpace
2017-03-02
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
Discovered that the ImageMagic filter-media plugin creates JPG thumbnails with the CMYK colorspace when the source PDF is using CMYK
Interestingly, it seems DSpace 4.x&rsquo;s thumbnails were sRGB, but forcing regeneration using DSpace 5.x&rsquo;s ImageMagick plugin creates CMYK JPGs if the source PDF was CMYK (see 10568&frasl;51999):
$ identify ~/Desktop/alc_contrastes_desafios.jpg
/Users/aorth/Desktop/alc_contrastes_desafios.jpg JPEG 464x600 464x600&#43;0&#43;0 8-bit CMYK 168KB 0.000u 0:00.000
" />
<meta property="og:type" content="article" />
<meta property="og:url" content="https://alanorth.github.io/cgspace-notes/2017-03/" />
<meta property="article:published_time" content="2017-03-01T17:08:52&#43;02:00"/>
<meta property="article:modified_time" content="2017-03-03T00:57:37&#43;02:00"/>
<meta name="twitter:card" content="summary"/>
<meta name="twitter:text:title" content="March, 2017"/>
<meta name="twitter:title" content="March, 2017"/>
<meta name="twitter:description" content="2017-03-01
Run the 279 CIAT author corrections on CGSpace
2017-03-02
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
Discovered that the ImageMagic filter-media plugin creates JPG thumbnails with the CMYK colorspace when the source PDF is using CMYK
Interestingly, it seems DSpace 4.x&rsquo;s thumbnails were sRGB, but forcing regeneration using DSpace 5.x&rsquo;s ImageMagick plugin creates CMYK JPGs if the source PDF was CMYK (see 10568&frasl;51999):
$ identify ~/Desktop/alc_contrastes_desafios.jpg
/Users/aorth/Desktop/alc_contrastes_desafios.jpg JPEG 464x600 464x600&#43;0&#43;0 8-bit CMYK 168KB 0.000u 0:00.000
"/>
<meta name="generator" content="Hugo 0.19" />
<script type="application/ld+json">
{
"@context": "http://schema.org",
"@type": "BlogPosting",
"headline": "March, 2017",
"url": "https://alanorth.github.io/cgspace-notes/2017-03/",
"wordCount": "113",
"datePublished": "2017-03-01T17:08:52&#43;02:00",
"dateModified": "2017-03-03T00:57:37&#43;02:00",
"author": {
"@type": "Person",
"name": "Alan Orth"
}
,
"keywords": "Notes"
}
</script>
<link rel="canonical" href="https://alanorth.github.io/cgspace-notes/2017-03/">
<title>March, 2017 | CGSpace Notes</title>
<!-- combined, minified CSS -->
<link href="https://alanorth.github.io/cgspace-notes/css/style.css" rel="stylesheet" integrity="sha384-Cdt2yG10w21pA8DMpImJIvsLOME686p75OYD9jGCZVWvOol9zkEsaF3ctGEuBXK6" crossorigin="anonymous">
</head>
<body>
<div class="blog-masthead">
<div class="container">
<nav class="nav blog-nav">
<a class="nav-link " href="https://alanorth.github.io/cgspace-notes/">Home</a>
</nav>
</div>
</div>
<header class="blog-header">
<div class="container">
<h1 class="blog-title"><a href="https://alanorth.github.io/cgspace-notes/" rel="home">CGSpace Notes</a></h1>
<p class="lead blog-description">Documenting day-to-day work on the <a href="https://cgspace.cgiar.org">CGSpace</a> repository.</p>
</div>
</header>
<div class="container">
<div class="row">
<div class="col-sm-8 blog-main">
<article class="blog-post">
<header>
<h2 class="blog-post-title"><a href="https://alanorth.github.io/cgspace-notes/2017-03/">March, 2017</a></h2>
<p class="blog-post-meta"><time datetime="2017-03-01T17:08:52&#43;02:00">Wed Mar 01, 2017</time> by Alan Orth in
<i class="fa fa-tag" aria-hidden="true"></i>&nbsp;<a href="/cgspace-notes/tags/notes" rel="tag">Notes</a>
</p>
</header>
<h2 id="2017-03-01">2017-03-01</h2>
<ul>
<li>Run the 279 CIAT author corrections on CGSpace</li>
</ul>
<h2 id="2017-03-02">2017-03-02</h2>
<ul>
<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>
<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>
<li>Interestingly, it seems DSpace 4.x&rsquo;s thumbnails were sRGB, but forcing regeneration using DSpace 5.x&rsquo;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>&frasl;<sub>51999</sub></a>):</li>
</ul>
<pre><code>$ identify ~/Desktop/alc_contrastes_desafios.jpg
/Users/aorth/Desktop/alc_contrastes_desafios.jpg JPEG 464x600 464x600+0+0 8-bit CMYK 168KB 0.000u 0:00.000
</code></pre>
<p></p>
<ul>
<li>This results in discolored thumbnails, sRGB and CMYK:</li>
</ul>
<p><img src="/cgspace-notes/2017/03/thumbnail-srgb.jpg" alt="Thumbnail in sRGB colorspace" /></p>
<p><img src="/cgspace-notes/2017/03/thumbnail-cmyk.jpg" alt="Thumbnial in CMYK colorspace" /></p>
<ul>
<li>I filed an issue for the color space thing: <a href="https://jira.duraspace.org/browse/DS-3517">DS-3517</a></li>
</ul>
</article>
</div> <!-- /.blog-main -->
<aside class="col-sm-3 offset-sm-1 blog-sidebar">
<section class="sidebar-module">
<h4>Recent Posts</h4>
<ol class="list-unstyled">
<li><a href="/cgspace-notes/2017-03/">March, 2017</a></li>
<li><a href="/cgspace-notes/2017-02/">February, 2017</a></li>
<li><a href="/cgspace-notes/2017-01/">January, 2017</a></li>
<li><a href="/cgspace-notes/2016-12/">December, 2016</a></li>
<li><a href="/cgspace-notes/2016-11/">November, 2016</a></li>
</ol>
</section>
<section class="sidebar-module">
<h4>Links</h4>
<ol class="list-unstyled">
<li><a href="https://cgspace.cgiar.org">CGSpace</a></li>
<li><a href="https://dspacetest.cgiar.org">DSpace Test</a></li>
<li><a href="https://github.com/ilri/DSpace">CGSpace @ GitHub</a></li>
</ol>
</section>
</aside>
</div> <!-- /.row -->
</div> <!-- /.container -->
<footer class="blog-footer">
<p>
Blog template created by <a href="https://twitter.com/mdo">@mdo</a>, ported to Hugo by <a href='https://twitter.com/mralanorth'>@mralanorth</a>.
</p>
<p>
<a href="#">Back to top</a>
</p>
</footer>
</body>
</html>