/tags/graphics/Recent content in Graphics on tigger.devHugoen-gb-oed© Tadhg O'BrienFri, 04 Jul 2025 18:17:43 +0100/magick-get-image-res/Fri, 04 Jul 2025 18:17:43 +0100/magick-get-image-res/<div id="outline-container-headline-1" class="outline-2"> <h2 id="headline-1"> Get an image&#39;s resolution </h2> <div id="outline-text-headline-1" class="outline-text-2"> <div class="src src-bash"> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>$ magick identify going-fishing.jpg </span></span><span style="display:flex;"><span>going-fishing.jpg JPEG 5422x3648 5422x3648+0+0 8-bit sRGB 12.2217MiB 0.000u 0:00.003</span></span></code></pre></div> </div> </div> </div> <div id="outline-container-headline-2" class="outline-2"> <h2 id="headline-2"> Convert an image to a different format </h2> <div id="outline-text-headline-2" class="outline-text-2"> <div class="src src-bash"> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>$ magick convert going-fishing.jpg going-fishing.png</span></span></code></pre></div> </div> </div> </div> <div id="outline-container-headline-3" class="outline-2"> <h2 id="headline-3"> Resize an image </h2> <div id="outline-text-headline-3" class="outline-text-2"> <div class="src src-bash"> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>$ magick convert going-fishing.jpg -resize 800x600 going-fishing-resized.jpg</span></span></code></pre></div> </div> <div id="outline-container-headline-4" class="outline-3"> <h3 id="headline-4"> Only specify width or height </h3> <div id="outline-text-headline-4" class="outline-text-3"> <div class="src src-bash"> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>$ magick convert going-fishing.jpg -resize 800x going-fishing-resized-width.jpg </span></span><span style="display:flex;"><span>$ magick convert going-fishing.jpg -resize x600 going-fishing-resized-height.jpg</span></span></code></pre></div> </div> </div> </div> <div id="outline-container-headline-5" class="outline-3"> <h3 id="headline-5"> By percentage </h3> <div id="outline-text-headline-5" class="outline-text-3"> <div class="src src-bash"> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>$ magick convert going-fishing.jpg -resize 50% going-fishing-resized-percent.jpg</span></span></code></pre></div> </div> </div> </div> </div> </div> <div id="outline-container-headline-6" class="outline-2"> <h2 id="headline-6"> Crop an image </h2> <div id="outline-text-headline-6" class="outline-text-2"> <div class="src src-bash"> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>$ magick convert going-fishing.jpg -crop 800x600+100+100 going-fishing-cropped.jpg</span></span></code></pre></div> </div> </div> </div> <div id="outline-container-headline-7" class="outline-2"> <h2 id="headline-7"> Rotate an image </h2> <div id="outline-text-headline-7" class="outline-text-2"> <div class="src src-bash"> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>$ magick convert going-fishing.jpg -rotate <span style="color:#ae81ff">90</span> going-fishing-rotated.jpg</span></span></code></pre></div> </div> </div> </div> <div id="outline-container-headline-8" class="outline-2"> <h2 id="headline-8"> Add a border to an image </h2> <div id="outline-text-headline-8" class="outline-text-2"> <div class="src src-bash"> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>$ magick convert going-fishing.jpg -bordercolor black -border 10x10 going-fishing-bordered.jpg</span></span></code></pre></div> </div> </div> </div> <div id="outline-container-headline-9" class="outline-2"> <h2 id="headline-9"> Add text to an image </h2> <div id="outline-text-headline-9" class="outline-text-2"> <div class="src src-bash"> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>$ magick convert going-fishing.jpg -gravity South -pointsize <span style="color:#ae81ff">36</span> -fill white -annotate +0+10 <span style="color:#e6db74">&#34;Going Fishing&#34;</span> going-fishing-text.jpg</span></span></code></pre></div> </div> </div> </div> <div id="outline-container-headline-10" class="outline-2"> <h2 id="headline-10"> Convert an image to grayscale </h2> <div id="outline-text-headline-10" class="outline-text-2"> <div class="src src-bash"> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>$ magick convert going-fishing.jpg -colorspace Gray going-fishing-grayscale.jpg</span></span></code></pre></div> </div> </div> </div> <div id="outline-container-headline-11" class="outline-2"> <h2 id="headline-11"> Create a thumbnail </h2> <div id="outline-text-headline-11" class="outline-text-2"> <div class="src src-bash"> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>$ magick convert going-fishing.jpg -thumbnail 150x150 going-fishing-thumbnail.jpg</span></span></code></pre></div> </div> </div> </div> <div id="outline-container-headline-12" class="outline-2"> <h2 id="headline-12"> Combine multiple images into a single image </h2> <div id="outline-text-headline-12" class="outline-text-2"> <div class="src src-bash"> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>$ magick convert image1.jpg image2.jpg image3.jpg +append combined-horizontal.jpg </span></span><span style="display:flex;"><span>$ magick convert image1.jpg image2.jpg image3.jpg -append combined-vertical.jpg</span></span></code></pre></div> </div> </div> </div> <div id="outline-container-headline-13" class="outline-2"> <h2 id="headline-13"> Watermark an image </h2> <div id="outline-text-headline-13" class="outline-text-2"> <div class="src src-bash"> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>$ magick convert going-fishing.jpg watermark.png -gravity southeast -geometry +10+10 -composite going-fishing-watermarked.jpg</span></span></code></pre></div> </div> </div> </div>/2025-02-07-ai-imaging-report-card/Fri, 07 Feb 2025 00:00:00 +0000/2025-02-07-ai-imaging-report-card/<p> Some days I am jolted out of my own complacency.</p> <p> Recently I was sent on one of those GenAI training workshops - I&#39;ve been to many of them now as an IT consultant. Our clients and the whole business ecosystem seems busy getting up to speed on it. One the more interesting hands-on workshops had us test the image analysis capabilities of various models.</p> <p> Funny how we take image recognition for granted now. I couldn&#39;t help be reminded of this xkcd cartoon from 2014.</p>