Homebrew Imagemagick



Install ImageMagick on Windows ¶ You could build ImageMagick by yourself, but it requires a build tool chain like Visual Studio to compile it. The easiest way is simply downloading a prebuilt binary of ImageMagick for your architecture (win32 or win64). You can download it from the following link.

Homebrew Imagemagick

Question or issue on macOS:

  • Freetype: 2.10.4: Software library to render fonts: ghostscript: 9.53.3: Interpreter for PostScript and PDF: jpeg: 9d: Image manipulation library: libpng: 1.6.37.
  • Homebrew and ImageMagick WordPress has a wonderful new plugin called Site Health. It does a great job letting you know what issues need to be repaired in order to have a healthy WordPress install. One issue I had trouble solving was the message I kept getting saying that “imagick” was not available.

I am using Homebrew v0.9.5 on my Mac OS X version 10.9.4

When I run the command: `brew install imagemagick, this error occurred.

I have added –disable-openmp option, it also doesn’t go well.

brew doctor command result has no problem.

How to solve this problem?

Solution no. 1:

Have you tried a

Homebrew

Apparently that seemed to fix it for me on Mac OS 10.8 (Mountain Lion). Previously I checked out the latest imagemagick brew recipe with “brew versions imagemagick” and “git checkout e68e443”, see here and here

Solution no. 2:

I’m not certain whether the source of my problem was the same as the OP’s, however (though this has an accepted answer already) I’ll post this in case this solution works for others.

Using brew install imagemagick, I would encounter the following error:


curl: (52) Empty reply from server Error: Failed to download resource
“libpng” Download failed:
https://downloads.sf.net/project/libpng/libpng16/1.6.16/libpng-1.6.16.tar.xz

Which is similar, if less specific than the OP’s message.

As it turned out, I already had a previous version of libpng installed (version 1.5.7). I then ran:

Followed by another brew install libpng, and this time it succeeded, as it now had the correct version needed.

Solution no. 3:

This problem also occurs because https://downloads.sf.net/project/libpng/libpng16/1.6.16/libpng-1.6.16.tar.xz has a badly configured SSL certificate. Open the link in your browser and see if your browser complains.

If that’s the case, you can manually download the file to /Library/Caches/Homebrew and run again.

Source: https://github.com/Homebrew/homebrew/issues/36703

Solution no. 4:

Imagemagick

Homebrew Emacs Imagemagick

For me it was upgrading to El Capitan. I found the simplest solution was to force remove homebrew:

then to re-install it:

then install imageMajick:

Depending on your setup you may not want to sudo. For me, its fine. Enjoy a snack while you manipulate images.

Solution no. 5:

In my case the url was simply not correct, with which homebrew wanted to download the required file. I looked it up here http://sourceforge.net/projects/libpng/files/libpng16/older-releases/1.6.16/ by myself and copied it to /Library/Caches/Homebrew like @Dan suggested.

I then run brew install libpng again and it worked.

Solution no. 6:

Follow this:

Add below lines in to ~/.bash_profile file

Install Rmagick

Solution no. 7:

If you are an Anaconda/Miniconda user on Mac OSX or Linux, you can install packages like imagemagick using conda.

Hope this helps!

While creating the Happy New Year edition issue of the newsletter, I decided that it might be cool to animate the accompanying image.

Ordinarily, I'd use SVG and CSS for this. I've used both for animation elsewhere on this site. Unfortunately, email support for SVG and CSS is not very good. So instead, I turned to that classic format: the animated GIF.

I've created animated GIFs using Fireworks back when it was owned by Macromedia. I've created them with ffmpeg by exporting frames from video files. But I've never created one “from scratch” by stitching together my own frames.

As it turns out, it's very easy to do. You'll just need a couple of tools: the image editing software of your choice and ImageMagick.

Install ImageMagick

You may already have it ImageMagick installed. Here's how to check:

  1. Open a terminal window. MacOS users can use Terminal.app. Ubuntu Linux users, use Ctrl + Alt + T to open one.
  2. Type convert at the prompt. If ImageMagick is installed, you'll see a copyright notice and a list of commands. Otherwise you'll see command not found or something similar.

If you do not have ImageMagick installed, install it. On macOS, you can install it with Homebrew.

Or, if you prefer, use MacPorts.

Debian/Ubuntu users use the following:

The -y flag is optional, and means “Yes.” Passing it will skip the apt confirmation prompt.

Lacie hard drives for mac. Note for Windows users: I haven't used Windows for the better part of this millennium. There are binary downloads of ImageMagick available for Windows. You'll have to figure out how to use them on your own.

Now you're ready to stitch together some image frames.

How to create image frames

Create your image frames using the software of your choice. Each frame should have the same dimensions. I used Sketch to create my images, and used a separate artboard for each frame. For other software packages, such as Acorn, you may need to use separate layers or separate files.

Export each image frame to a bitmap format such as GIF, PNG, or JPEG. Saving them to the same directory makes things easier to manage. I'm using the phrase image frame here because we'll turn them into frames, but they're just separate image files. Which format you use doesn't matter much; ImageMagick will convert them to GIF.

Once you've exported your frames, navigate to the directory where you've saved them. Then run the convert command to stitch your images together. For example:

The -delay flag indicates how many hundreths of a second the GIF should pause before displaying the next frame. In this case, the value is 100, or one second. Animations can cause seizures in some viewers. One second is well above the safety threshhold to avoiding triggering seizures in most cases.

Note: The World Wide Web Consortiums Web Content Accessibility Guidelines say that content should not flash or blink more than three times per second. This works out to a -delay value of 34, or thirty-four hundredths of a second.

The -loop flag indicates how many times the GIF should repeat. A value of 0 (-loop 0) will cause your GIF to loop infinitely. Here, I've chosen to have it repeat five times. Five times is enough to catch the viewer's attention, without being an ongoing distraction on the page.

Brew imagemagick

-dispose, indicates what should happen when the frame changes. In this case, -dispose previous hides the prior frame. Without -dispose previous, you'd end up with the mess in Figure 1.

The next three bits of the command indicate the paths to our input and output files: start.png and end.png. Both files will be stitched together to form IAmAnimating.gif.

Homebrew imagemagick path

You can also pass a wildcard argument — e.g. *.png — for the list of input files. Deesser vst for mac. If you do so, be aware that ImageMagick will assemble those images in alphanumeric order. A file named gifframe10.png will be inserted before gifframe2.png.

Mac Install Imagemagick

Even though it's more verbose, I recommend specifying the list of input files in the order you'd like them to appear. You can include a file twice within the list if you'd like it to appear more than once in the animation.

Imagemagick Download For Windows 10

ImageMagick is far more powerful than what I've covered here. It's also very well documented. Be sure to read the documentation Animation Basics documentation, and the section on how to optimize your animated images.