https://www.simplicidade.org/tags/images/index.xml Recent content in Images on Notes Hugo -- gohugo.io en-us melo@simplicidade.org (Pedro Melo) melo@simplicidade.org (Pedro Melo) (c) 2016 Pedro Melo. https://www.simplicidade.org/survival/image-manipulation/ Fri, 29 Jul 2016 23:58:50 +0100 melo@simplicidade.org (Pedro Melo) https://www.simplicidade.org/survival/image-manipulation/ <p>Small CLI recipes for image transformation.</p> <h2 id="center-a-image-with-padding">Center a image with padding</h2> <p>You want to change the dimensions of an image, filling the new spots with white space.</p> <pre><code>convert -size 512x512 xc:white in.png -gravity center -composite out.png </code></pre> <p>Resize with <code>-extent</code> plus <code>-background</code> will also work.</p> <h2 id="resize-image">Resize image</h2> <pre><code>convert in.png -resize 32x32 out.png </code></pre> <p>More at <a href="https://www.imagemagick.org/Usage/resize/">Resizing Images with ImageMagick</a>.</p> <h2 id="remove-extra-white-space-around-image">Remove extra white space around image</h2> <pre><code>convert in.png -trim out.png </code></pre>