From 12518ef11e447768e9a5380d49c707be64f51b67 Mon Sep 17 00:00:00 2001
From: DarkSun <lujun9972@gmail.com>
Date: Tue, 7 Sep 2021 05:03:59 +0800
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+[#]: subject: "Resize an image from the Linux terminal"
+[#]: via: "https://opensource.com/article/21/9/resize-image-linux"
+[#]: author: "Jim Hall https://opensource.com/users/jim-hall"
+[#]: collector: "lujun9972"
+[#]: translator: " "
+[#]: reviewer: " "
+[#]: publisher: " "
+[#]: url: " "
+
+Resize an image from the Linux terminal
+======
+Shrink an image from your terminal with the ImageMagick convert command.
+![Old camera blue][1]
+
+ImageMagick is a handy multipurpose command-line tool for all your image needs. ImageMagick supports a variety of image types, including JPG photos and PNG graphics.
+
+### Resizing images
+
+I often use ImageMagick on my webserver to resize images. For example, let's say I want to include a photo of my cats on my personal website. The photo from my phone is very large, about 4000x3000 pixels, at 3.3MB. That's much too large for a web page. I use the ImageMagick convert tool to change the size of my photo so that I can include it on my web page. ImageMagick is a full suite of tools, one of the most common is the `convert` command.
+
+The ImageMagick `convert` command uses this general syntax:
+
+
+```
+`convert {input} {actions} {output}`
+```
+
+To resize a photo called `PXL_20210413_015045733.jpg` to a more manageable 500-pixel width, type this:
+
+
+```
+`$ convert PXL_20210413_015045733.jpg -resize 500x sleeping-cats.jpg`
+```
+
+The new image is now only 65KB in size. 
+
+![Sleeping cats][2]
+
+Jim Hall, [CC BY-SA 4.0][3]
+
+You can provide both width and height dimensions with the `-resize` option. But, by providing only the width, ImageMagic does the math for you and automatically retains the aspect ratio by resizing the output image with a proportional height.
+
+### Install ImageMagick on Linux
+
+On Linux, you can install ImageMagick using your package manager. For instance, on Fedora or similar:
+
+
+```
+`$ sudo dnf install imagemagick`
+```
+
+On Debian and similar:
+
+
+```
+`$ sudo apt install imagemagick`
+```
+
+On macOS, use [MacPorts][4] or [Homebrew][5].
+
+On Windows, use [Chocolatey][6].
+
+--------------------------------------------------------------------------------
+
+via: https://opensource.com/article/21/9/resize-image-linux
+
+作者：[Jim Hall][a]
+选题：[lujun9972][b]
+译者：[译者ID](https://github.com/译者ID)
+校对：[校对者ID](https://github.com/校对者ID)
+
+本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
+
+[a]: https://opensource.com/users/jim-hall
+[b]: https://github.com/lujun9972
+[1]: https://opensource.com/sites/default/files/styles/image-full-size/public/lead-images/osdc-photo-camera-blue.png?itok=AsIMZ9ga (Old camera blue)
+[2]: https://opensource.com/sites/default/files/sleeping-cats.jpg (Sleeping cats)
+[3]: https://creativecommons.org/licenses/by-sa/4.0/
+[4]: https://opensource.com/article/20/11/macports
+[5]: https://opensource.com/article/20/6/homebrew-mac
+[6]: https://opensource.com/article/20/3/chocolatey